Trailblazer Fan Clutch Symptoms

Your vehicle's Chevrolet Trailblazer Fan Clutch mitigates fatigue on the engine and saves fuel by permitting the fan to run fast while the engine is hot and at low speed while the engine is cold. Check out free battery charging and engine diagnostic testing while you are in store. Several symptoms may point to a. P1481 Faulty Fan Clutch Assembly means a problem in Fan Clutch Assembly harness, which may have resulted from a poor electrical connection circuit. I read the Service Slants tip about TrailBlazer a/c problems in the August 2003 issue of Motor. Once engine speed is above 2500 rpm the fan must disengage because the sound fades away. com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page. The PCM controls the cooling fan by grounding the cooling fan control circuit which turns ON the cooling fan relay. Find 2006 Chevrolet TrailBlazer recalls information, reported by the NHTSA, and we will help you find a nearby service center where you can get your car fixed. If the clutch engages with the scan tool, there is likely a problem with one of the inputs. sounds like a airplane when first start up. Find CHEVROLET Fan Clutches with Heavy-duty thermal Clutch Style and get Free Shipping on Orders Over $99 at Summit Racing!. Hello all, Posting this one for my dad's 2002 Trailblazer EXT with about 175,000 miles on it. 2-liter inline Six, have an electronically controlled valve for the fan clutch. temperature. I replaced my own. The contact stated while the local mechanic inspected the vehicle they found that the fuel pump was leaking. Chevrolet TrailBlazer repairs by problem area. One of the first symptoms that is commonly associated with a bad or failing fan clutch is an overheating engine. If the clutch engages with the scan tool, there is likely a problem with one of the inputs. P0480 CHEVROLET More Information. We took it to Autozone who stated the code indicated the fan is rotating too fast. Doing a repair that requires a special tool? O'Reilly Auto Parts makes it easy with our Loaner Tool Program. My radio will stop n start again. You just need to get the PCM programmed to ignore the fan errors. If you are going to get rid of the vehicle in a year or two, get a cheap Hayden fan clutch. I installed a new electric clutch fan because the other one was operating on high even when the engine was at idle. It was giving the symptoms of high idle and it was like the fan was blowing too much air. Point of reference- I run the aluminum-headed 383 blower motor in my Malibu with a 4-core radiator out of an 80s Olds 442 and a thermally compensated standard duty clutch fan. Battery replacement. The main issue was intermittent low power. The cooling fan clutch may fail causing excessive fan noise and/or the Check Engine Light to illuminate. First, remove the IAT from the vehicle. Remove the air resonator assembly from the engine. 00 coupon applied. If the fan comes on, the most likely cause is a cooling fan thermostatic switch. How to Test a Fan Clutch. The fan clutch on my '02 Trailblazer is starting to go bad, with engine roaring at intermittent times, per the dealer, who refuses to warranty it, even the vehicle has less than 17k on it. Rather it is a guide to what you can expect to run into if you do have to replace an engine. If the fan comes on, the most likely cause is a cooling fan thermostatic switch. Basic Causes of a Misfire Condition. #04-01-38-019A - (Jun 7, 2005) Intermittent Slow to Cool HVAC Performance Concerns in High Ambient Temperatures and/or High Humidity Conditions After Start Up, Especially at Low Engine. I'm at a lost and out of alot of money but because my wife still want this car i'm willing to try a couple more things and spend a several hundred more. 2004 GMC Envoy XL. A few late-model pickups and SUVs, such as Ford diesels and the Chevy TrailBlazer and others with the 4. Problems with Trailblazer Fan Clutch? Hello everybody I am having some issues with our 2004 Trailblazer! We had Fan clutch problems about 6 months ago, when the engine light came on and i heared the fan really loud everytime i started the car. If the readings you get in the Coolant Temperature will not go beyond 160° – 170° F in the span of 15 minutes, then try to put your foot on the brake, shift to Drive and then press the throttle for around two to three minutes and see if the readings increase. Order Chevrolet Trailblazer Fan Clutch online today. Symptoms of a bad fan clutch? Answer. The pulley's won't make any noise if the fan is going out either, but the ticking noise does indeed suggest that the fan clutch is failing and it should eventually be replaced. Fan Clutch test First, lets discuss what the fan clutch does and why it is there. Step by Step Chevy Trailblazer 4. The hall effect sensor returns a signal pulse through the speed signal circuit in response to the reluctor track, which is located inside the fan clutch. I was pretty sure the idler pulley bearing was making the noise so I loosened the tensioner assembly and took the belt off. The first symptoms of bad transmission mounts include engine shaking and abnormal noise. , it probably means you have a failing camshaft sensor that needs immediate. com FREE DELIVERY possible on eligible purchases. my 2002 trailblazer has had issues with the fan clutch. The average cost for a Chevrolet Trailblazer radiator fan clutch replacement is between $562 and $792. We do not turn on the second fan, but place it facing the first. As your car rolls along, the engine takes in a mix of air and fuel that allows it to keep moving. 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. The fan clutch relies on several components to function. If during operation, the PCM detects a loss of the cooling fan speed signal, DTC P0526 will set. 2L and found that the Fan Clutch would be bad or the Motor Mounts "Collapsing or Getting Hard". Need to verify line pressure, and provided no valves in the TCC (Torque Converter Clutch) hydraulic circuit are worn, replace the torque converter. The experts at 1A Auto will show you how to replace the water pump on your 99-04 Chevy Silverado or Tahoe, or GMC Sierra or Yukon. A central core, which locks and unlocks based on the temperature, allows the fan to spin with the engine crankshaft or freewheel on its own. If the fan comes on, the most likely cause is a cooling fan thermostatic switch. Excessively loud cooling fans. The fan clutch is an important part of your vehicle's engine cooling system. I never towed anything, no off road driving, no hard shifting, nothing. Problem Description. I have had problems with the fan clutch and water pump. How do you determine if the fan clutch is bad on a 2002 Trailblazer? Answer. Free Same Day Store Pickup. I now have 50k miles and the fan clutch motor failed and operated at 100%. On our website you can find and buy first-rate replacement radiators, fuel tanks, evaporator cores, intercoolers, and more top-quality Spectra Premium products. The Fan Clutch allows the fan to operate at lower speeds and effectively detach at higher speeds when the vehicle is moving and air movement due to velocity aids to cool the engine. The fan clutch would have a sloppy feel if you rocked it at 9&3 positions. If the car will not shift after engaging the clutch and trying to move the stick, take a look at the fluid to make sure that it is at the right level. The 2005 Chevrolet Trailblazer has 30 NHTSA complaints for the engine and engine cooling at 50,216 miles average. The failure and the current mileage was 72,943. Rplaced my fan clutch on my 07 trailblazer! Before repair it was only loud at start up maybe %75 of the time!! After putting a new one on its loud all the time when I accelerate! Took back to sho. 1,543 problems have been reported for the 2006 Chevrolet Trailblazer. Order Chevrolet Trailblazer Fan Clutch online today. The sports car belongs to her sister Kylie, who got it after giving birth to. Your vehicle's Chevrolet Trailblazer Fan Clutch mitigates fatigue on the engine and saves fuel by permitting the fan to run fast while the engine is hot and at low speed while the engine is cold. The fan clutch on a 2003 TrailBlazer is electronically controlled. Excessively loud cooling fans. A BAD thermal fan clutch will cause your vehicle to overheat. If the fan never runs at all, the engine may overheat. Fan Clutch Removal A fan clutch is featured on rear wheel drive cars only because it connects to the water pump and faces the radiator while pulling air through the radiator's cooling fins 2005 Chevy Trailblazer Water Pump And Fan Clutch. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. That's only after installing: new water pump, radiator, fan, fan clutch, fan cover including labour. The hotter the engine gets, the more the fan has to spin. is this normal or does fan clutch need replaced Fan clutches for Envoys and Trailblazer are a problem, they go out all the time. Call an independent repair shop in your area that specialize n Chevy and get a quote, get it properly checked out before jumping to conclusions that the problem. 2003 GMC Envoy XL. Driving around on a hot day in a car without a working air conditioner can be uncomfortable and even dangerous in extreme heat. Open the hood with the engine off and try to spin the engines fan by hand if it turn hard its bad aloso try to wiggle the fan forward and back if their is play in the clutch bearing it's bad. You could get the fan errors programmed out by PCMofNC (formerly PCM4Less) and just get a 2008/2009 regular viscous clutch. How to Tell if You Have a Faulty Coolant Temperature Sensor April 10, 2012 A miscalibrated coolant temperature sensor (CTS) can result in excessive NOx emissions and overheating by masking problems with insuffient coolant. You can absolutely replace the fan clutch on your 2003 Trailblazer yourself. Just read in another forum of someone working on a Honda car and basically did the same thing as me and was asking what to do. Your Chevy Trailblazer's radiator fan has one of the most important jobs on the vehicle. At around 2750 RPM in any gear at any speed it make this noise. The fan clutch is responsible for pushing radiator fluid through the water pump, which keeps the engine cool. Both clutches will do the job but the AC Delco fan clutch will last longer. Fan Speed High. Continuous excessive fan noise is due to a mechanical failure. 2004 GMC Envoy XL. BAD Fan Clutch Troubleshooting Case Study (GM 4. Symptoms of a Bad or Failing Fan Clutch 1. The cooling fan control module varies the voltage drop across the engine cooling fan motor in relation to the pulse width modulated signal. May 19, 2009 - Safb, TX - Engine And Engine Cooling I HAVE A 2005 CHEVY TRAILBLAZER WITH 46,000 MILES AND THE TRANSMISSION, IDLER PULLEY, AND WATER PUMP ALREADY HAD TO BE REPLACED. Top 10 Causes of a Rough Idle 1. The noise is intermittent and the periodic rate is constant regardless of engine speed rpm's. Replied by Arcturus on topic Trailblazer With Bad Vibrations Did some reading and it seems that a few others with this vehicle had vibration problems that were fixed by replacing the engine mounts. A fan clutch is a thermostatic engine cooling fan that can freewheel at low temperatures when cooling is not needed, allowing the engine to warm up faster, relieving unnecessary load on the engine. The 2003 Chevrolet Trailblazer has 3 problems reported for clutch fan failure. Loose or broken vacuum hose/vacuum leak. We make tough jobs easy with the O'Reilly Auto Parts loaner tool program. What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles (Chevrolet, Buick, Peugeot, Toyota, Citroen, Dodge, BMW Honda, Acura, Ford, Dodge, etc. continues to run high for about three or four blocks. The engine needs to operate at a set temperature, and if the fan runs constantly, it may run below the optimal temperature. It is basically a tube that threads into the larger bore ID of the clutch hub, then a push bolt screws in--bottoms out on the center shaft---as you screw it in the hub comes off. Page 3 of 4: Checking the Fan Clutch. 2-liter inline Six, have an electronically controlled valve for the fan clutch. Basic Causes of a Misfire Condition. You have to disconnect the transmission coolant lines and then remove the radiator to give you enough room to replace the clutch. The viscosity of the fan clutch allows internal friction to occur by moving the molecules against one another thereby causing the fluid to defy flow. If the fan noise decreases during this step, then there is an electrical malfunction. This ON time directly effects the amount of time the solenoid, which is internal to the fan clutch, is energized. Be prepared this will be an expensive repair. The 2002 Chevrolet Trailblazer has 2 problems reported for fan clutch failure. It's possible that your cooling fan on the front of the engine is going or gone bad it has a clucth on it that can sieze up and cause this problem it can also cause a slight vibration at higher RPM's. The fan clutch is responsible for controlling the operation of the cooling fans. If during operation, the PCM detects a loss of the cooling fan speed signal, DTC P0526 will set. Might want to take a peak there and see if they're rotten. Welcome to AF, not GM's issue here, but a dealer that is gun shy to attempt a repair, we need the code and more symptoms, the fan clutch can be an issue here, very common, or a sensor issue that engages the clutch on high and reduces power to save the engine. Continuous excessive fan noise is due to a mechanical failure. Product meets or exceeds OE quality. Replaced my electro-viscous fan clutch with this thermal - now the temperatures are solid and good even under high load! Had to remove fan codes with HPTuners because the check engine light will pop. I checked the wires that plugs into the fan clutch and I am only getting one out of five that works. The fan clutch is designed to improve the vehicle's cooling system efficiency while reducing the load on the engine and loss of energy caused by the fan itself. The Engine Control Module (ECM) has detected an improper circuit condition on the cooling fan clutch control circuit P1482 CHEVROLET Possible Symptoms Engine Light ON (or Service Engine Soon Warning Light). I heard that when your engine gets to operating temperature you shut the engine off and spin the fan. The Fan Clutch allows the fan to operate at lower speeds and effectively detach at higher speeds when the vehicle is moving and air movement due to velocity aids to cool the engine. 2003 GMC Envoy XL. In the event you suspect your fan clutch is not. Vehicle overheating. When they begin to fail they will usually display a few symptoms that will alert the driver This article originally appeared on YourMechanic. I installed a new electric clutch fan because the other one was operating on high even when the engine was at idle. Ignition System: Misfire Troubleshooting. the fan clutches are very common to be bad, get an AC Delco or a dealer fan clutch, Aftermarket ones do not work correctly. This database includes information received by NHTSA from consumers either directly or as recorded by the Vehicle Safety Hotline. If the fan hub needs to be replaced my labor guide says it is almost a three hour job and the dealer cost on the part is over $350. I did pull the belt and checked the pu. A malfunctioning fan clutch can cause the engine to overheat because of poorly circulating radiator fluid. We took it to Autozone who stated the code indicated the fan is rotating too fast. Also DONT try this with the engine running. Left for a minute and started the engine left for 2 minutes. Replaced my electro-viscous fan clutch with this thermal - now the temperatures are solid and good even under high load! Had to remove fan codes with HPTuners because the check engine light will pop. Is there a working relationship between the Fan Clutch and the Transmission? My 02 Trailblazer intermittently (not all the time) at start up in park hot or cold will run high rpm's about 1100, sound as though it is racing and will not idle down even after, one time I waited for 15 minutes. I now have 50k miles and the fan clutch motor failed and operated at 100%. I am looking up information on both issues and do see reports of replaced motor mounts "only OEM" and stones in the transmission mount area. 2002 Chevrolet Trailblazer Engine and Engine Cooling Technical Service Bulletins (TSBs). Common problems of the 2006 Chevrolet Trailblazer. On our website you can find and buy first-rate replacement radiators, fuel tanks, evaporator cores, intercoolers, and more top-quality Spectra Premium products. How to Test a Fan Clutch. Com aisin fct 009 engine cooling fan clutch automotive gmb chevy camaro 1970 engine cooling fan clutch com acdelco 15 4694 gm original equipment engine cooling fan com acdelco 15 40109 gm original equipment engine cooling. The contact heard a loud noise when the engine was started and discovered that the fan belt was. GMC Envoy fan clutch replacement cost is anywhere between $100. The parts and labor required for this service are. All gauges are normal and shifts normally. Whats people lookup in this blog: Cooling Fan Clutch; Cooling Fan Clutch Failure Symptoms; Cooling Fan Clutch Purpose. A fan clutch that is going bad can create one huge sign that something is wrong: overheating of the engine. 2003 Trailblazer vent dont Vent air flow will ot change to defrost or floor on A/C or heater. How to troubleshoot an electronic clutch fan circuit on an Olds Bravada or Chevy Blazer with a 4. We took it to Autozone who stated the code indicated the fan is rotating too fast. Electrical Problems. Water Pump, Fan Clutch, Gaskets and Hardware included. fan clutch seems fully engaged. Truck would run hot, 220, 230 with AC on. Doing a repair that requires a special tool? O'Reilly Auto Parts makes it easy with our Loaner Tool Program. Go to our Tech Tips section for even more technical information in your local language!. Check the engines often,. How to Diagnose a Non Working Air Conditioning in a Car. This can display the same problems and symptoms as a defective part. That's only after installing: new water pump, radiator, fan, fan clutch, fan cover including labour. Which wires do you jump around to get current to the clutch so I can add enough freon to get the low pressure switch to allow current to the clutch?. To repair the issue, you need to ensure the fan clutch is properly situated, lubricated and intact. Looking for a 2006 Chevrolet Trailblazer Coolant Temperature Sensor? Get yours at Wholesale Prices and Free Shipping over $50 only here at AutoPartsWarehouse!. The mechanic advised that the fuel pump liner was made with defective metal that caused the fuel pump to corrode. Wait for the engine to cool down to dead cold and start it up; most fans will turn some whenever the engine's running, but they shouldn't be running hard enough to hear from inside the car with the hood shut. My question is two part. Many electric fans and clutches operate at variable speeds, ranging from 15% to 100% capacity. Turned it back on and tried to see if it would work and it didn't. Install cooling fan relay. The cooling fan relay will be commanded ON when the following conditions are met: - The engine coolant temperature reaches 106°C (223°F) or more. View Details Mar 15, 2009 - Taylor, MI - Engine And Engine Cooling I HAVE BEEN REPORTING THIS SAME PROBLEM FOR. If the thermostatic switch that controls it goes bad, the clutch can either lock up, causing it to spin at engine RPM, which keeps the engine from heating up properly, or it can free spin, causing the engine to run overly cold. But it is a clutch fan so what is. Was quoted $3300 at Canadian Tire. Those are the symptoms of a bad fan clutch. Chevrolet Trailblazer Fan Clutch Replacement costs between $461 and $623 on average. GMC Envoy/ Chevy Trailblazer Electronic Fan Clutch Removal & Installation Instructions Also Fits: Olsmobile Bravada, Buick Ranier, Isuzu Ascender, & Sabb Vehicles GM Part #: 15293048, 25790869, 15192191 AKA: Cooling Fan Speed Sensor, Electro-Viscous (EV) Fan Clutch, Electronic Fan Clutch Symptoms that may require fan clutch replacement: Excessive Fan Noise and/or Check Engine Light On…. I replaced my own. I heard that when your engine gets to operating temperature you shut the engine off and spin the fan. Need to verify line pressure, and provided no valves in the TCC (Torque Converter Clutch) hydraulic circuit are worn, replace the torque converter. the fan clutches are very common to be bad, get an AC Delco or a dealer fan clutch, Aftermarket ones do not work correctly. Stores are open seven days a week. ˜ Too much antifreeze concentration does not transfer heat as well as 50/50% mixture. The fan clutch is an important part of your vehicle's engine cooling system. 1,543 problems have been reported for the 2006 Chevrolet Trailblazer. IT REVS VERY HIGH AND THERE IS A NOTICEABLE POWER LOSS WITH ACCELERATION. When multiple cooling speed requests are received, the ECM uses the highest cooling fan speed of all the requests. But also note for us whether the condenser fan(s) are running, ambient temp and humidity, whether the compressor cycles on and off quickly (10 sec or less) or less frequently, and what you see in the sight glass if your car is equipped with one at the receiver/drier. Dealer diagnosed as water pump bearing and wanted $475 to replace the water pump. I had it and it sounds like a harrier taking off. 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. The fan clutch is a thermostatic control that operates the radiator fan independent of engine speed. No change in resistance or an infinite resistance reading indicate that the IAT sensor is faulty. my 2002 trailblazer has had issues with the fan clutch. Stores are open seven days a week. 4 November 2003 Photo: Karl Seyfert. - Bowling Green, KY, USA. Water Pump, Fan Clutch, Gaskets and Hardware included. There are several transmission control module symptoms that alert you that something has gone wrong and the most likely culprit is the module. The Fan Clutch allows the fan to operate at lower speeds and effectively detach at higher speeds when the vehicle is moving and air movement due to velocity aids to cool the engine. Engine (31%) Transmission and Drivetrain (10%) Brakes and Traction Control (5%) Suspension and Steering (22%) Electrical and Air Conditioning (25%) Paint, Rust, Leaks, Rattles, and Trim (3%) Other (4%). Fix Fan clutch issues Rainier Trailblazer S10 Ascender Bravada 9-7X S15 Envoy. If its frozen that will cause a vibration which will shake the entire car. Ive been having some major computer problems with my trailblazer. The mechanic advised that the fuel pump liner was made with defective metal that caused the fuel pump to corrode. WIRING INFORMATION: 2005 Chevy Trailblazer WIRE WIRE COLOR WIRE LOCATION 12V CONSTANT WIRE RED and RED/WHITE Ignition Harness STARTER WIRE YELLOW Ignition Harness IGNITION WIRE PINK Ignition Harness SECOND IGNITION WIRE WHITE Ignition Harness ACCESSORY WIRE ORANGE Ignition Harness SECOND ACCESSORY WIRE BROWN Ignition Harness. Repair : A repair shop will tell you the entire compressor needs to be replaced, which also necessitates a full evacuation & recharge of the entire AC system and replacement of the drier/filter. The parts and labor required for this service are. BlueDevil offers a variety of easy-to-use car care products to stop transmission, oil, and head gasket leaks and prevent, repair and maintain your vehicle. Buy Quality Replacement Parts for Your GMC Envoy Online Whether you need a 2003 Chevy Trailblazer fan clutch replacement or a 2003 GMC Envoy fan clutch, you should ensure that you buy quality parts from an. Watch this video to learn how to fix a leaking or broken water pump. A fan clutch that is going bad can create one huge sign that something is wrong: overheating of the engine. I understand there is no extended warranty on this. Now have you heard of anything in this area. Automotive Recalls and Technical Service Bulletins for 2003 Chevy Truck TrailBlazer 2WD L6-4. I've replaced the fan clutch twice and the water pump once. It's a direct swap. Fan Clutch Problems []. vii 4-Door Utility About Driving Your Vehicle As with other vehicles of this type, failure to operate this vehicle correctly may result in loss of control or an. 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. This what I bought: Dorman® 622-001 - Electronic Radiator Fan Clutch This is an eclectic clutch fan and you have to plug it in. Order GMC Envoy XL Fan Clutch online today. - The vehicle speed is less than 38 MPH. At a stop, though, because the fan clutch doesn't engage and air isn't forced through the radiator, the engine can't dissipate excess heat. Free Same Day Store Pickup. 2003 Chevrolet Trailblazer LS 4. The fan clutch either partially engages or disengages the radiator cooling fan. You just need to get the PCM programmed to ignore the fan errors. I had it and it sounds like a harrier taking off. Browse your favorite brands affordable prices free shipping on many items. Re: Replace fan clutch in 2008 Not That fun to get off. Learn what does P1481 Gmc Cooling Fan Speed Signal Lost means, location and how to repair? The engine cooling fan is a variable speed fan. If you encounter Electronic Fan clutch issues on Rainier, Trailblazer, S10, Isuzu Ascender, Oldmobile Bravada, Saab 9-7X, and S15 GMC Envoy, read this. If the thermostatic switch that controls it goes bad, the clutch can either lock up, causing it to spin at engine RPM, which keeps the engine from heating up properly, or it can free spin, causing the engine to run overly cold. The Engine Control Module (ECM) controls the fan speed by sending a pulse width modulated signal to the. I replaced my own. Other symptoms, such as free-wheeling, looseness and leaking fluid, also indicate a worn fan clutch can be ascertained by examining the fan manually. Part Number: MCK1004. I did pull the belt and checked the pu. The fan clutch is designed to improve the vehicle's cooling system efficiency while reducing the load on the engine and loss of energy caused by the fan itself. BlueDevil offers a variety of easy-to-use car care products to stop transmission, oil, and head gasket leaks and prevent, repair and maintain your vehicle. Now and it is still showing service engine soon. Left for a minute and started the engine left for 2 minutes. If its frozen that will cause a vibration which will shake the entire car. Problem Description. Yes, they finally realized the electro-viscous clutch was a failure and reverted to the good old fan clutch of the 70's. One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. upon investigating this issue i found literally thousands of complaints on the internet regarding the chevrolet trailblazer and its premature fan clutch failures. A fan clutch is the assembly that your engine cooling fan rides on and that tells the fan when to turn on and off. The fan clutch is responsible for controlling the operation of the cooling fans. Brakes feel fine and work as should at higher speeds. Not wanting to get it too hot, I let go and the fan sped up significantly. SOURCE: HAVE A 2005 CHEVY TRAILBLAZER WITH P2432 CODE ? Yhea it's under the truck on drivers side bolted to the transmisson crossmember. Re: Replace fan clutch in 2008 Not That fun to get off. Is there a - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. If I remember correctly the clutch was somewhere between $150 and $200. Auto Service Costs Find the prices for normal auto service activities including alignment, tuneup, timing belt replacement and more. Symptoms of a bad transmission solenoid switch include inconsistent shifting, delayed shifting or no shifting of the transmission, according to Transmission Repair Cost Guide. is this normal or does fan clutch need replaced Fan clutches for Envoys and Trailblazer are a problem, they go out all the time. I replaced the fan clutch due to failure (100% lock up) about 3 yrs ago - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. Water Pump and Fan Clutch share the same shaft. This is very similar for most GMC SUVs and trucks from 99 to 06 and 07. Driveline vibrations are probably the hardest things to diagnose next to intermittent electrical problems. What are the signs of fan clutch failure? Mine seems to be making more noise at startup and low speeds. It's a direct swap. Point of reference- I run the aluminum-headed 383 blower motor in my Malibu with a 4-core radiator out of an 80s Olds 442 and a thermally compensated standard duty clutch fan. Driving around on a hot day in a car without a working air conditioner can be uncomfortable and even dangerous in extreme heat. This 2004 Chevrolet Trailblazer came in with a fairly loud roaring/whining noise coming from under the hood while the engine was running. Blown Head Gasket Symptoms I usually get my oil changed at Jiffy Lube because they are convenient and I can’t crawl under my car and change my oil like I used to. 2002 Chevrolet Trailblazer Engine and Engine Cooling Technical Service Bulletins (TSBs). What year is your trailblazer? For example, the older trailblazers had a weakness in this area due to the electro-viscous coupled fan. Shift suddenly become very hard. Mine finally went out last week at ~78k miles. Is there a working relationship between the Fan Clutch and the Transmission? My 02 Trailblazer intermittently (not all the time) at start up in park hot or cold will run high rpm's about 1100, sound as though it is racing and will not idle down even after, one time I waited for 15 minutes. Category:Hobbies Release time:2013-10-05 Views:130. Those are the symptoms of a bad fan clutch. If your hear "ticking" and have to use WD40. Shop safely with us online or call 888-844-3393 and buy the quality part your car or truck needs today. Statistically, pre-2005 vehicles with the original fan clutch are almost always having problems with the fan clutch, and not the 12V control going to it. Remove the inlet radiator hose from the radiator. The fan clutch is what controls the turning of the fan which is activated by a thermostat. But also note for us whether the condenser fan(s) are running, ambient temp and humidity, whether the compressor cycles on and off quickly (10 sec or less) or less frequently, and what you see in the sight glass if your car is equipped with one at the receiver/drier. blackericdenice 18,155 views. 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. Problems with the fan clutch can cause your. The mechanic advised that the fuel pump liner was made with defective metal that caused the fuel pump to corrode. It's possible that your cooling fan on the front of the engine is going or gone bad it has a clucth on it that can sieze up and cause this problem it can also cause a slight vibration at higher RPM's. The next item of interest would be the torque convertor in the transmision. Get Yours Today! We have the best products at the right price. The clutch disc is splined to the compressor shaft. The noise is intermittent and the periodic rate is constant regardless of engine speed rpm's. Symptoms of Fan Clutch Problems. Once engine speed is above 2500 rpm the fan must disengage because the sound fades away. I had same symptoms after I replaced the fan clutch. Check out free battery charging and engine diagnostic testing while you are in store. This is for my 2004 Chevy Trailblazer LS. goes away when engine warms up. This original equipment engine cooling fan clutch is a GM-recommended replacement for your vehicle’s original components and has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Problem Description. Brakes feel fine and work as should at higher speeds. How to troubleshoot an electronic clutch fan circuit on an Olds Bravada or Chevy Blazer with a 4. com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory. In this article we are going to talk about the part of the automatic transmission called the torque converter. Learn about this problem, why it occurs, and how to fix it.