That's what I was trying to say, that the amount of power loss depends on whether the clutch was engaged or not. How to Fix a Slipping Clutch. 0L Power Stroke Diesel - fan clutch stuck and constantly engaged? - Ok so here is my newest dilema-- I'm driving down the road the other day and I hear what I'm sure is the fan engaging. Some trucks have been modified with a jumper on the fan connector to keep the fan continuously engaged. The throwout bearing allows a stationary mechanism (the clutch fork) to depress the springs of the pressure plate which is spinning at engine RPM. The cycles should get longer and longer until the clutch stays engaged. Should come with release bearing, pilot bearing, clutch disk, and pressure plate. 8 motor, 70k miles it seems to me as if the fan clutch always seems engaged, even at cold startup, under even part throttle, I can hear the fan roar as. A skilled mechanic can check whether your radiator cap is fit for the job in less than five minutes, but if you want to do it yourself or simply want to learn about inspections and the symptoms of radiator cap, continue. This Part Fits the Following OEM/Substitute Numbers: 1552406 , 9352020 , KG2671 , 36734 , FC172 ,. Excess fan noise at high speed is caused by the same problem, a seized fan clutch. Defective viscous fan clutch - if the fan does not produce an audible roar when the engine is hot, the clutch is not engaging. The clutch should never lock up completely. It would crank right back up and drives fine, until the blades are engaged. With proper use of a manual transmission, the clutch should last a long. My fan clutch still comes on cold starts but for a few seconds. commanded state of the fan clutch increases, so does the ON time of the relay. He said it was the fan clutch and that I was fine and to ignore it. If this happens, check the fan clutch for damage or wear. Thanks for any help guys. Overheating: One of the first signs of a fan clutch that has kicked the bucket or is close to doing it, is an overheating engine. If it's not stuck too bad it should pop it loose. I would open open your hood,start the engine, see how the fan is spinning, how it sounds, should be fairly quiet, than raise the rpms quick moving the linkage on the throttle body, the fan should make more noise, and spin faster if it doesn't the clutch is probably bad. The older ones engaged with vacume, that means they could spin freely while the engine was off. Clutch cable misadjusted or not working smoothly. There are a couple of ways you can fix the problem to bring back the air conditioning system in order. When in gear and clutch lever pulled in all the way the bike tries to move a little (no full clutch disengagement), neutral is very hard to find, shifting is very difficult. If a replacement of the fan clutch does not result in an improvement then the fan clutch was not the source of the problem h. It takes a great deal of persistence, effort, and determination to ruin a Corvette's clutch. A good way to know if it's the clutch is when you switch the AC on, the condenser fan will turn on but the clutch won't engage. Let’s first of all understand how the compressor starts to ‘pump’ when we switch the air conditioning on inside the car. Clutch Will Not Engage Vehicle air pressure present Vehicle air pressure NOT present Check liner wear Liner is worn Liner is not worn Housing movement No housing movement Apply & release 90-110 psi of air. Not the cheapest job but you do the math. i feel a light lurch when going into 1st, and the wheel spins when on the center stand and my lever is pulled (while in 1st gear. One of the most well-known trucks on the market, the Ford F-150 is a light-duty truck. Most cars are designed to have the radiator cooling fan kick in when the A/C is on. In the car has been running with the transmission in neutral, clutch engaged, like when you're warming up the car in the morning, or a long light, you don't want to hold the clutch down forever, plus that isn't good for throwout bearings. For this reason we have come up with a Troubleshooting Guide to help you out. This could be caused by a leak. When you quickly engage the clutch, under high engine power, the engine RPM stays up a bit then comes down to the speed that matches the gear and the vehicle speed. -hence I think the clutch plates may not be stuck together. Here are some other signs your fan clutch needs to be replaced: Noisy Fan Clutch - A scraping or squealing sound that ceases when you turn the A/C fan off. It was a Dorman from rockauto. Diagnosing A/C Compressor Clutch Problems on your Mercedes-Benz The A/C system on your Mercedes-Benz includes many sensors and components including the air conditioner compressor. Next, inspect both the plain shank of the mounting bolt and the bushing of the clutch throw-out arm for wear and replace them if you find any. It sounds like this clutch is controlled by air and the air by electric solenoids. Here's a question for those in the know. In the following lines, we shall describe the most commonly observed symptoms that indicate towards the possibility of a bad throwout bearing. If air leaks by an O-ring out of sequence, it'll engage the clutch and leave it engaged until system pressure comes down enough for the shutterstat to reset. But the moment you start the truck the clutch re engages. Defective viscous fan clutch - if the fan does not produce an audible roar when the engine is hot, the clutch is not engaging. Vehicle overheating. Symptoms of a Bad or Failing Fan Clutch 1. While many people know how to drive a manual car, surprisingly, most of them don’t understand how a clutch really works. With the fan clutch stuck on you'd for sure notice the sound difference, and I really can't see the fan being on causing that low of a temp. So, if you are the type of driver who slips the clutch a lot, you'll wear out your clutch a lot faster. The clutch removal tool fits precisely around the outer ring of the clutch and will allow you to pull it off gently, as it keeps the clutch from spinning while you remove it. Thanks Flatulator, you have shed new lite on my problem. One of the first symptoms that are commonly associated with a bad or failing fan clutch is an overheating engine. If you ride a 4-stroke you're less likely to encounter clutch problems. The golf cart clutch or CVT (which stands for Continuously Variable Transmission) may be easy enough for you if you're used to stick-shift driving with your regular vehicle. The customer was thrilled: He’d been told that he’d need a new transmission. Not to bad of a job to replace and most parts stores should have the part. Seized up crankshaft bearings. 99% of fan clutches are thermal. Some trucks have been modified with a jumper on the fan connector to keep the fan continuously engaged. Another potential symptom of your fan clutch being stuck ON in a cold weather climate is that the heating system doesn't deliver sufficient hot air. Another thing the clutch puller / installer #78-3213 works really good. Also, when installing a new clutch, clean the flywheel & pressure plate with brake parts cleaner & make sure your hands are clean when handling any clutch component, especially the clutch disc. Fan Clutch that should be Replaced. Your car’s water pump is the key to keeping the entire system cool. This company is not yet accredited. The clutch connects to your engine via the engine’s flywheel. However, those same symptoms can appear if you have a pitted AC clutch relay. If you find that your clutch is going out, the Omix-ADA Regular Clutch Kit works great as a direct replacement for the original equipment. Signs your clutch is going The clutch is a hugely important part of your vehicle - without it, you'd be unable to change between gears. ) I would not spend the money on the BP pump personally, but thats after talking to a bunch of 6. I have a 97 FLD 120 with a series 60 engine. This type of fan clutch is engaged with the water pump shaft. They literally transfer the power from the engine to the transmission, making the vehicle go. The cooling fan noise should increase as the cooling fan clutch engages. 2886 clutch would have the fan fully engaged by 200° ect Mike I have put ~240,000 miles on the 2886 via my 07. Previous owner said it had been sitting out in the open for about 6 months and it had stuck on him before and was able to get it released by placing it against a tree with the clutch disengaged. The A/C compressor is the heart of the system. The ECT sensor monitors the coolant temperature, and allows the fan to turn on if the coolant is too hot. your clutch is comprised of alternating steel and friction plates. When the truck was new I recall the fan clutch engaged on first start and the fan roaring for a little while after driving. clutch went to the floor. The most recently reported issues are listed below. Replacing the fan clutch assembly took care of the problem. I have removed the plastic blade cover and the flywheel will not budge. This can cause the engine to run very hot. It helps power up the fan blade when your engine gets too hot and it turns it off when not needed to save power. I would think taking your time you could change all 6 in abt 30 min. Clutch fan not disengaging for 36 miles sounds like it's bad. At first it seemed like maybe we got a bad aftermarket part, but after taking a working fan from the other truck and comparing, that doesn't appear to be the case. So, if you are the type of driver who slips the clutch a lot, you'll wear out your clutch a lot faster. A fan clutch can also fail in a stuck on position where engine power is lost even when the fan is not necessary. Standard-Duty Thermal Fan Clutch: This design turns the fan at 60-70 percent of the water pump shaft speed when engaged, and 20-30 percent when disengaged. All would work normally again - untill next time. How The Fan Clutch Is Controlled. The fan clutch is what pulls air through the condenser (radiator for the ac is in front of the real radiator). Helpful information and resources on John Deere tractors from SSB Tractor, a leading provider of tractor parts, manuals, implements and toys John Deere Tractors Discussion Forum Archived Messages Return to John Deere Tractors Forum Main Page. The newer ones have a valve that cuts off the vacume when they are supposed to go on. Causes of this DTC may include: Wiring harness to transmission shorted to ground. The fan is commanded to 100% if: – engine coolant temperature exceeds 264°F (129°C). A big note, when you get the clutch off put the tool back on and try and move the shaft up and down and sideways. The clutch connects to your engine via the engine’s flywheel. One engine problem that can feel like clutch release problems is the dreaded crank thrust washers falling out. The fan clutch seems to engage and disengage rapidly in cycles, this happens even when the AC is NOT on and more frequently when it is. wanting to change engage rpms. clutch pedal is now stuck up. When Brooks had the TEAM clutch installed on his Yamaha and he is back on the road. Once installed onto the starter shaft, the bearing should spin freely counter-clockwise, and engage the shaft when turned clockwise. 1999 - 2003 7. So, when the engine is cool or even when it is at a normal operating temperature, the fan clutch will partially disengage the engine's radiator cooling fan (which is mechanically driven). Usually one of the drive belts on your engine is what turns your water pump. Cause Extremely low or no refrigerant in the system. The cycles should get longer and longer until the clutch stays engaged. These are the Dodge clutch kits that we have available. Some air controlled clutches use air to disengage them and others are air engaged. The following is a list of problem symptoms discussed in this guide: Rattle from the rear of the car at low RPM. If a viscous fan clutch is stuck ON, it will rob your engine's power and decrease fuel economy. Fan Clutch +Fan Blade suits Patrol GU Y61 4. Read more Ford reviews to learn about other models. Just in front of the windschield cowling. Your fan sounds likes it is working properly. You have to fan the clutch a lot on a 2-stroke so you'll be well acquainted with clutch adjustments and replacements if you ride a 2-stroke. They are found on trucks and older rear wheel drive passenger cars. 6 TDCI Estate - Clutch Pedal Problems - sky2012 : Hi, I'm having the same problem with a 2011 Ford Focus. It means you have a heavy foot and you do not know how to drive a car with manual gears very well. (2) and (3) because they are related air intake that might cause an engine to rev, (and because those were suggestions to this problem on Yahoo Answers) but I doubt because the RPMs go UP instead of down, and only when press the clutch. If the fan clutch gets stuck in the engaged position, which is not uncommon, it will cause the fans to fully engage even when it is not desirable for. The switch cuts the the ignition when you are taking the engine out of gear when the boat is in the water. Here are the signs 1) Noise. Seized clutch. The engine may run hotter at lower speeds and at idle and the air conditioning performance drops. Seized rod bearings. Ranges shifted with left-hand lever beside seat. Regardless of all of that the fan clutch should engage or disengage with air application, of course engine off, shop air or truck air. I've adjusted the linkage to have 1in of peddle play, and still the clutch feels like it is engaged even with it pressed to the floor. The jeep has to remain running with the ac on. When the engine is hot and off, turning the fan by hand. I started having trouble with the clutch getting stuck about 2 months ago after long journeys, it was due a service at the time and they checked it out and said there was nothing wrong. When to replace your clutch plates: Warning signs By CarToq Editor - September 13, 2012 The clutch is one of the most important parts in a manual transmission car as it connects the engine with the gearbox, and is what provides motive force for the car. Re: P0741=Torque Converter Clutch Circuit Performance or Stuck Off (aspuccini) Post by atm711 » Fri Oct 15, 2010 7:02 am i'm going through that exact same problem i drive a 96 cadillac deville i've been driving the car with my check engine light on for some time now and it won't pass inspection cause of that one code TCC but it pass it last. The AC is not running, and the truck never seems to require the fan clutch to be engaged fully while I am driving during hot summer days. Cooling Fan Problems of Chevrolet Trailblazer - part 1 Chevrolet Trailblazer owners have reported 60 problems related to cooling fan (under the engine and engine cooling category). Radiator fan testing points. I dont know why I feel lucky but I think it could have been worst. It hunts speed to keep engine temps within range. Can a Fan Clutch on 2002 Trailblazer be stuck? Answer. So my ac compressor just stopped working today. Sometimes the center of the disc will break completely out if this problem is not corrected. When Brooks had the TEAM clutch installed on his Yamaha and he is back on the road. When the clutch is engaged (i. Is there a good after market fan clutch?. So, if you are the type of driver who slips the clutch a lot, you'll wear out your clutch a lot faster. 0 3 M a r - 0 3 l S e 03 J a n-0 44 y 04 J u 04 S e 0 4 No v 5 M a r-0 5 0 5 Ju l-S e 05 a n-6 Ma r M y 06 u 06 ep. In my opinion, the fan noise makes it easy to misinterpret as being transmission problems. During first few minutes after start-up until the clutch can redistribute the silicone fluid back to its normal disengaged operating condition after overnight settling. We have a lot of car air conditioning articles posted on the site that aim at getting your mobile cooling unit working again. Fully engaged, the fan will be noisy. Air may prevent hydraulic clutch from releasing Q I own a 2002 Chevy Cavalier with 74,000 miles on it. Also the belts squeak anytime I go above 3200-3400 rpm. However, it's simple to check and even easier to keep in tiptop shape. Thought the fan was supposed to kick on when it reached a. The cooling fan clutch plays a pivotal part in your vehicle's cooling system. When the driver attempts to shift gears, he or she can't because the still-engaged clutch is still spinning along with the engine. If the brake fluid is low, you can fill it and then pump the clutch pedal, or bleed the system,. I tested two Delco 16-4644 units, which is the recommended replacement for our application, and you can see that they spin at a very high % of engine rpm when disengaged, and nearly lock up at engine rpm when engaged. "Peterbilttruckparts. A faulty fan clutch can affect your car in more ways than one. So start your diagnosis by determining if the compressor clutch works. The original fan clutch (genuine ford part) failed on the truck after 13 years and 91,000 miles, which made it over heat. A cable operated clutch The most likely cause. A dragging clutch is one that fails to disengage the clutch disk from the flywheel when the driver pushes in the clutch pedal. That indicates the the fan clutch is defective. checked all fuses ,marked ac,under clove compartment and engine hood. Like I was saying the new fan clutch has the fan engaged all the time, so I know the truck will not overheat. Finally, the condition of all of the A/C components, particularly on older trucks, can be a factor. A bad throwout bearing in the clutch system of a car is one such hard-to-detect problem. Is this normal? It does not happen all the time, and it only occurs in the morning. Which symptoms you’ll see depends on when that relay sticks. Non-thermal fan clutch. Clutch - Methods to Free a Sticking One- by Lee Vermeiren & John Bower (tOTG) The clutch on my 8N was sticking and failing to release when the pedal was depressed. the clutch assembly can be bought seperately but it's a real pain to replace on the car (to avoid disconnecting the hoses). i check for an air leak. The clutch disengages as the air temperature decreases, closing the valve and allowing the silicone fluid to be pumped back into the reservoir. 0 fleet guys that even said its not worth the cost. If your air conditioner does not run when it is switched on, it is a possible indicator of a bad clutch. A bad car AC relay remains a common problem for many years, make and model automobiles. Like I was saying the new fan clutch has the fan engaged all the time, so I know the truck will not overheat. The clutch plate has a sort of a spring action when the electro magnet (coil) is energized, which closes the gap and turns the compressor. Now, Remove the 4 10mm bolts that hold the fan to the Fan Clutch. I have a Craftsman Lawn Tractor, 18 HP, 42" Model 917. When to replace your clutch plates: Warning signs By CarToq Editor - September 13, 2012 The clutch is one of the most important parts in a manual transmission car as it connects the engine with the gearbox, and is what provides motive force for the car. Too cold and they don't run well. It doesn't matter if you have a manual or automatic transmission; they both do the same thing. The problem occurs when the wires from the fan clutch flex and get cut/damaged by the cooling fan blades. Next, inspect both the plain shank of the mounting bolt and the bushing of the clutch throw-out arm for wear and replace them if you find any. It usually resumed normal function within a mile or so. So, when the engine is cool or even when it is at a normal operating temperature, the fan clutch will partially disengage the engine's radiator cooling fan (which is mechanically driven). Optional: New flywheel. For this reason we have come up with a Troubleshooting Guide to help you out. What mechanical piece engages/disengages this fan? Funny, was just talking about how loud it is in another thread. Next, inspect both the plain shank of the mounting bolt and the bushing of the clutch throw-out arm for wear and replace them if you find any. Depress the clutch pedal quickly to disengage, and ease it up to re-engage the clutch. With proper use of a manual transmission, the clutch should last a long. -hence I think the clutch plates may not be stuck together. New clutch still engages fan blowing loudly at timeswhen hot in trafficbut there is a clear difference that now the clutch is releasing. When bad, the fan stays engaged, which can't spin fast enough to through air at say 50 mph, essentially acts as a BLOCK to the air, and car overheats. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. It was a Dorman from rockauto. clutch was pulled out by hand. This jumper must be removed before connecting the new fan. And with a vehicle fourteen years old and having 100K miles I didn't want to do the job twice, having a 14 year old pump go out a month or so after replacing the clutch. You may have to register before you can post: click the register link above to proceed. If the fan clutch seizes, it remains engaged all the time, cooling off the engine too much. As the clutch disc pulls in towards the pulley, the pulley provides the rotating power to operate the compressor. Would a 200/350 Green/blue spring be good?. On my 37 Buick I jacked up the rear, ran it in 3rd gear with the clutch pushed in, and tapped the brakes a few times. The wires normally are safe from damage until the plastic clips on the wire harness connectors fail and break, allowing the wires to flex. Fan Clutch +Fan Blade suits Patrol GU Y61 4. clutch was pulled out by hand. All would work normally again - untill next time. 46 and they sell it for 26. 4L) is stuck engaged. We have installed the factory radiator screen to block debris, and even shelled out to the dealer to "fix" the fan clutch, which did nothing. Always replace the filter/drier and or accumulator anytime the A/C system is opened. Is it possible for the clutch fan to not be coming on when it is supposed to? Or am I wrong on when it should come on? I'm assuming I will just be replacing the clutch fan in the near future. There are springs within the fan clutch that can wear out or corrode over the years. It fairly quickly disengages when the fluid re-distributes, and unless the air across it is hot enough, stays disengaged and only transfers miinimal power to spin the fan through friction. So it is stuck engaged. 944 CLUTCH HYDRAULIC SYSTEM. You will need the proper size open end wrench to remove the fan clutch from the pulley operating the water pump. Fan stays on, I do notice fan free spins for a few seconds when you shut the engine off. I got home, checked for codes and found P0528 which is "Fan Speed Sensor Circuit No Signal". I decided to replace the clutch knowing full well I did not have the money for a transmission rebuild or replacement. it'll run and shift, but it won't fully disengage when I pull the lever. The installation is specific to a Jeep. Sorry for waiting. Very possible. It has a sensor that detects temperature around the engine and if it becomes too hot, the clutch engages the fan in motion to produce air that cools down the heat. You can determine if the agitator is not working by filling up the washing machine and turning it to the wash cycle. First the and most common way a fan clutch can fail is the clutch shoe inside the unit can get stuck and not disengage causing the fan to lock up on the input shaft which will permanently engage the cooling fan which will be accompanied by a noticeable roaring sound. Signs of Worn Fan Clutch. I tested two Delco 16-4644 units, which is the recommended replacement for our application, and you can see that they spin at a very high % of engine rpm when disengaged, and nearly lock up at engine rpm when engaged. Thanks for any help guys. the steels have teeth on the inside, the friction plates have wider teeth on the outside. This can cause bearing damage, radiator damage if the blades flex too far, or even shatter a plastic fan. Should come with release bearing, pilot bearing, clutch disk, and pressure plate. JUst replaced both on my son's 02 v6. The AC clutch works with an electro-magnet. A stuck fan clutch will cause excessive, unnecessary drag on the engine, which can cause a drop in power, acceleration, and fuel efficiency, sometimes to a quite noticeable degree. There are springs within the fan clutch that can wear out or corrode over the years. With an icepick and patience I got the rubber washer out, yay! Looks like I might be able to do this repair myself - I have the exact symptoms of a failed clutch. When signs of clutch failure occur, the problem can be due to any number of issues with the various components of the clutch assembly, including the pressure plate. The clutch disc is splined to the compressor shaft. How your car, and by extension, you the driver, will experience the code P0741 will depend on your vehicle and the severity of the problem. Bad fan clutches can also cause poor performance of the car's air conditioning system because the fan also cools the air conditioner's condenser, which is directly in front of the radiator. It is a thermostatically controlled device that when operating normally will vary the fan speed independently of the engine speed. The electric clutch on a new mower should remove from the shaft without any problems. If there's no free pedal play on your clutch pedal, another problem can occur, even if there's enough play to allow the clutch disk to engage. Cleared up after a few miles. When first started the fan will be engaged until air pressure is built up and the truck 'determines" it is not overheating and the solenoid sends air to the clutch and the fan disengages. The fan would come on at 180 degrees, AC off. Gordon Finley _____ Somebody correct me if I am wrong, but the TC clutch is the device that locks-up the TC once you have attained a relatively steady speed. 5 and ~130,000 miles via the 99 3500, even ran that fan clutch with the 6. Signs that a fan clutch is going bad include vibration, excessive fan noise at any speed, bad air conditioner performance at idle or low speed and failure to increase speed when the engine gets hot. The fan clutch did not dis-engage until I shut the bus off when I parked it for the night. Diesels run hot. Most of the time it would cycle on & off for no reason. It happens when the friction or clutch disc remains engaged or stuck, so the transmission input shaft keeps spinning even when you fully depress the clutch pedal. So i turn off ignition it will then engage in gear. Its been working wonderfully for the past month, but two days ago the a/c clutch fuse blew. Fan kicks on about 30 seconds after vehicle is started and is extremely loud. Clutch repair and replacement specialists near you, having fitted over 1 million clutches since 1978, providing information, diagnostics and costs for new clutch replacements and repairs. When a fan clutch goes BAD and causes your vehicle to overheat, it's usually because the fan clutch is unable to get into its ‘Engaged’ mode. Diagnosing A/C Compressor Clutch Problems on your Mercedes-Benz The A/C system on your Mercedes-Benz includes many sensors and components including the air conditioner compressor. The forward clutch is always fed with uncut line pressure in first and second gears, and originally is effected by cutback in third gear. The jeep has to remain running with the ac on. The only fan clutch bearing issue I've seen caused the fan clutch to seize, therefore, constantly engaged. Sometimes the problem is not with slipping, but with sticking. hey guys, I've been rebuildling a bike and its looking really great. When Brooks had the TEAM clutch installed on his Yamaha and he is back on the road. Sometimes the center of the disc will break completely out if this problem is not corrected. There's a 14 pin connector at the module. You should contact your doctor if it feels like you have something in your eye, or if you. Transmissions, or gearboxes depending on where you're from, provide a reverse gear and mechanical advantage to the engine’s power output. This results in loss of engine power, reduced fuel mileage, and a sound like there is a jet engine under the hood when accelerating. The fan clutch may not engage even when the temperature increases beyond the. Occasionally the clutch would stick in the engaged position (pedal then moved freely with little resistance and no drive through the clutch). Can the clutch stick in the engaged position and stay on all the time? When truck is off I am unable to spin the fan at all by hand. How to Test a Fan Clutch. Read more Ford reviews to learn about other models. This will activate the fan clutch. Place the transmission in high gear, rev the engine to 2500 rpm and slowly release the pedal. Car stuck in one gear. Tractor must be stopped to shift ranges. You should contact your doctor if it feels like you have something in your eye, or if you. All would work normally again - untill next time. As we all know, the fan clutch should have been disengaged after about 3000 RPM, so it appears that this car was dyno'ed with a stuck fan clutch. Before the first ride, before the bike is started, put it in gear, preferably 2nd. P0740 FORD Meaning The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (). The obvious course of action was to replace it and so we did--except that hasn't fixed it. It could be sorted by cracking the bleedscrew on the slave cylinder and releasing the pressure. Friction plates worn. The second clutch started slipping and he was told he needed a heavy-duty clutch. The clutch pedal will not move at all. It hunts speed to keep engine temps within range. I just need some help on the clutch. How to Know When Your Clutch Needs Replacement. com Forums. Need PACCAR MX13 Fan Clutch/Hub Parts? Check out 35 PACCAR MX13 Fan Clutch/Hub Parts for sale. Too hot and they burn up. When they fixed mine, they said the coil inside was stuck in the engaged position. Here's what you need to watch out for. The clutch disc is splined to the compressor shaft. The discharge pressure spikes above the opening. fluid level in the reservoir is full. clutch was pulled out by hand. It turns much faster and almost sounds like the engine has downshifted. How to Fix a Slipping Clutch. Impeller blades on the pump force the coolant to flow through the engine and back to the radiator. When a fan clutch goes BAD and causes your vehicle to overheat, it's usually because the fan clutch is unable to get into its ‘Engaged’ mode. A bad car AC relay remains a common problem for many years, make and model automobiles. I suspect one of these relays has its contacts stuck together. Also stays on when driving down the highway. Not the cheapest job but you do the math. With an icepick and patience I got the rubber washer out, yay! Looks like I might be able to do this repair myself - I have the exact symptoms of a failed clutch. At idle, even a mechanical clutch fan engages and disengages to cool engines. In newer vehicles with computerized engine controls, fan operation is often regulated by the powertrain control module (PCM) or a fan control module. Fan kicks on about 30 seconds after vehicle is started and is extremely loud. Check Engine Light) Minimal decrease in fuel economy, this will not affect engine performance; Potential Causes. A/C Compressor won't disengage electric clutch TDI 101. During operation the clutch may cycle on and off several times per minute. My fan is on all the time. when I used to pull away it'd sound like ti was sucking in the earth, and would stop after 30-50 meters. At some point as the engine heats up the clutch should engage fully and you should hear it engage. The Functions of a Radiator Fan. one of these is a bad clutch that makes the fan unable to operate as it should. These symptoms are telling you that the clutch is “on the way out” and will need replacement before too long. It immediately became too hot to touch the edge of the AC clutch. 2L TD42 inc TD42T Turbo Diesel | eBay Nissan Patrol 1999-2006 TY61, GU, Y61 Cab Chassis 4. It can take a few minutes for it to lock up fully and its best done while monitoring the fan pids on your scan tool. Put it in high gear, have someone hold the clutch pedal down, then rock the pickup back and forth. I got a replacement clutch, and when I left to drive to the shop to have it installed, realized it's now completely not engaging -- it won't move with the clutch completely engaged. Clutch not disengaging properly: Excessive clutch lever free play. These fans are needed at slow speeds; typically below 35 mph and at. That indicates the the fan clutch is defective. Freeing a STUCK CLUTCH - CT-104. I've been able to track the noise vs. Clutch fan not disengaging for 36 miles sounds like it's bad. The cooling/condenser fan is an electric over (normal) hydraulic fan clutch which supplies quite a bit more airflow than most thermal only clutches when low temps/head pressure are present; and a tremendous volume of airflow when partially/fully engaged. That's what I was trying to say, that the amount of power loss depends on whether the clutch was engaged or not. The BulletProof Fan Clutch Harness Wire Saver is a true must-have for the Ford 6. The secondary clutch connects to the jackshaft of the snowmobile. :banghead: Who knew? I sure didn't but this is, afterall, the first system I've ever recharged. Sometimes the problem is not with slipping, but with sticking. Fan clutch bearing failure is pretty rare, so I would be skeptical of the diagnosis. I'm also thinking possibly a bad clutch slave cylinder. I checked the relay and fuse, I also checked there was power going to the plug and there was.