Ac Compressor Pulley Seized







But I understand the shorter belt will have to be able to clear the compressor pulley. 2006 jetta tdi(brm) ac compressor area started making popping noises. The A/C Compressor Pulley is seized up on my 2006 Taurus. Some people don't like the plastic pulley, but there's not stress on the pulley at that point. Established over 65 years ago and innovating ever since with the introduction of over 3200 products made to. Possible seized drive pulley ( alternator/AC compressor etc ). or you can just keep the same belt and fab a dummy pulley to take the place of the A/C compressor pulley. Having trouble finding the physical location of the Air Conditioning Amplifier Assembly. if the pulley layout or any other parts are different you will need to swap them out with junkyard parts. I successfully removed the old compressor from the car. Upon further inspection, I discovered that only a few fragments of the drive belt for the compressor exist. I have a few questions. Now, the air conditioning compressor has seized and I am looking at another 1300 dollar repair bill. That pulley is not spinning at all. AC BYPASS PULLEY. That will probably cost more than the car is worth. belt snapped but also messed up the tensioner pulley. Thanks for any input. Now there's an affordable, effective way to get your vehicle up and running after a seized A/C compressor renders it inoperable. The belt was replaced 70K miles ago when I installed head gasket replacements. A/C Compressor Bypass Pulley by Dorman®. Remove tension from idler pulley and remove pulley. KA24DE AC Compressor to SR20DET Conversion Bracket/Kit Arguably one of the biggest issues/pet peeves with the SR20 swap in USDM S chassis cars it the lack of working AC in them. i replaced the alternator, AC comp, brlt and both idler pulleys trying to chase down a whine. As some of you know, during the 2014 Convention the bearing in the AC compressor pulley exploded during the trip out to Karting. Found out why my AC is blowing hot air. Just bolt it in place of the A/C compressor and reinstall the belt. wheels, while two rubber foot. The "one other pulley" that I described is the only other pulley on this belt (other than the crankshaft pulley itself) and I was simply asking if I'm correct in concluding that this is the pulley for the AC compressor (for anyone familiar with the Mazda3). Now there's an affordable way to get your vehicle up and running after a seized A/C compressor renders it inoperable. "If the belt has been removed because the pulley wasn't turning with ac on or off, it will be the clutch bearing. At Advance Auto, we carry 19 different types of A/C Compressor Bypass Pulley products for your Ford at competitive prices to fit your budget. Common Symptoms Of a Defective Compressor. 0L), thus preventing vehicle from starting. Advance Auto Parts has 7 different A/C Compressor Bypass Pulley for your vehicle, ready for shipping or in-store pick up. I searched and couldn't find a recommendation on how to fix the problem I have. They do make compressor bypass blanks that specifically to replace the A/C compressor assembly with a bracket and free-wheeling pulley. If the clutch hub is what is smoking only during clutch engagement, you may have seized the compressor. The Air conditioning compressor is likely seized. But there is a reason for that. Possible seized drive pulley ( alternator/AC compressor etc ). Seized component. The pulley is out-of-center and seized. I'm looking for a shortcut to keeping the car on the road. If it was just the idler bearing, the compressor would always run. Adjust tension. I shot some white lithium grease to both pulleys for good measure and it's quiet as a mouse now. You could replace the clutch and realize the compressor is seized when it tries to engage. The AC system is toast. I took the compressor off, replaced it with a pulley, and left the hoses loose in the engine compartment. Now there's an affordable way to get your vehicle up and running after a seized A/C compressor renders it inoperable. Car won't start/Mechanic says AC Compressor Seized. Ok, listen, if you see car advice from a non-mechanic, be very skeptical. If the AC compressors seizes while operating, the shock load can snap the serpentine belt. We also had to remove the compressor to make sure the shorter belt did not rub against the seized pulley. About 450 parts and labor. The primary function of an air conditioning bypass pulley is to stand in for an AC compressor that has stopped working. Try turning the pulley with the car shut off. Dorman's A/C Compressor By-Pass Pulley is installed in place of a new compressor, significantly reducing parts and labor costs. Our A/C Compressor By-Pass Pulley is installed in place of a new compressor. If the actual compressor is seized, this just took a turn for the worse. This A/C compressor bypass pulley is a great solution to a seized or defective air conditioning pump at a fraction of the cost of a new pump. 3dit with the FS10-21 compressor as far as I can tell. It has the task of pumping a refrigerant gas, which is typically freon. The compressor clutch allows the spinning pulley on the front of the compressor to engage and disengage the AC compressor so that it’s only running when it needs to be. I listened to the noise with a mechanics stethoscope and determined that the noise was either coming from the air conditioning compressor pulley bearing or the belt tensioner. The belt had fallen off the air compressor pulley and was lodged between it and the air compressor. The clutch on the compressor is what allows the. And without AC compressor oil, the AC compressor stops working altogether. AC Compressors are found abutting the radiator so that the air forced under the hood cools down the cooling fluid. Repair estimate to replace compressor, belt, receiver-drier (due to debris in system) is $1100-1500, which isn't really in the budget right now. The A/C completely seized and the pulley is no longer turning. i had dye put through my ac and showed a hole in one if the pipes( it had been rubbing on the bodywork and worn through) so replaced and realigned and all has been good the last four years. If it's good, then it should be perfectly smooth and very very easy to turn. Verify that the serpentine belt is not damaged or missing. They can see if it's related and replace those too if needed. We've got the what, why, and how it works, when you need it. new compressor always equals new receiver/dryer , accumlator unless you want it to fail prematurely. This type of work is one of the highest cost tasks for a. wheels, while two rubber foot. i replaced the alternator, AC comp, brlt and both idler pulleys trying to chase down a whine. Harrison R4 AC Compressor Repair Tutorial. 4 97 = 1997 98 = 1998 99 = 1999 00 = 2000 This A/C compressor bypass pulley is a great solution to a seized or defective air conditioning pump at a fraction ,89019185 COIL. Eccentric rotating operation designed for maximum force with little effort. Try turning the pulley with the car shut off. It should not turn once the magnetic clutch engages, and also you may possibly hear squeals of protest from your drive belt. Now that the belt is snapped I think the compressor is most likely not spinning so fine, I am guessing the pulley bearing has seized? It is too late to get it looked at today but I was wondering if anyone thinks that this is possible, that the bearing seized that caused the tentioner to shake and then snapped the belt. I don't know why the compressor would seize up but it did. I can turn both the clutch and the compressor pulley easily and independently by hand, suggesting that the compressor is not seized. Got home and cranked AC and on defrost and didn't see higher than 15PSI on AC high side pressure and couldn't hear the compressor cycling at all. Save on cost when you find your Ford replacement A/C Compressor Bypass Pulley with us. Resulting in: 1+2) For safety reasons the limiter of the pulley hub will break instead of drive belt. They do make compressor bypass blanks that specifically to replace the A/C compressor assembly with a bracket and free-wheeling pulley. If the compressor seized internally, it may well have trashed the rest of the AC system and you're going to have to replace almost the whole system. I have received mixed information regarding this. Save on cost when you find your Ford replacement A/C Compressor Bypass Pulley with us. Today is the first time I've started it since then and it appears the AC compressor has seized. Through normal wear and tear, and possibly due to an unexpected defect, the AC compressor may stop functioning or seize. Well the compressor recently seized up ( again Im guessing lack of lubrication since all the refrigerant leaked out)at any rate, destroyed the belt, and of course for the moment cant put a new belt back on it. Small defects in the AC compressor body - or also adjacent hoses and fixtures - can cause the AC compressor to fail. If the compressor is seized, changing only the clutch isn't going to make a damn bit of difference because the problem is in the compressor itself, not the pulley clutch. If that moves but the pulley won't the compressor is not seized. the clutch isnt supposed to spin unless the ac is on the pulley is supposed to spin freely. If the A/C compressor is seized, proceed to step 5. Nissan Altima 4 CYL 2. That was a month ago. 5mm away from the pulley and spins only when AC is used. A/C Compressor Bypass Pulley by Dorman®. A seized A/C pulley won't stop it from starting. Repair estimate to replace compressor, belt, receiver-drier (due to debris in system) is $1100-1500, which isn't really in the budget right now. Guess what - the tensioner had seized (not the pulley part) and even though it seemed like it was transfering the noise elsewhere, that was my problem. Dorman's A/C Compressor By-Pass Pulley is installed in place of a new compressor, significantly reducing parts and labor costs. With the car off, and with the belt on, I think the clutch (the left outermost part of the compressor pulley that engages the pulley when the ac is on) should turn freely. Never realized it. Also, we'll be using a bearing that is supposed to reduce friction. 4,906 results for ford f150 ac compressor AC Compressor & Clutch Pulley BL3Z19703C BL3419D629BB OEM Ford F150 6. In addition to the AC compressor clutch, we also talk about repairing the AC belt idler. If your pulley has seized or it seizes intermittently causing the belt to rub then spin then rub. I searched and couldn't find a recommendation on how to fix the problem I have. If a serpentine belt goes around an a/c compressor clutch pulley and the compressor is locked up, it is okay to have the belt as long as the a/c compressor clutch is not activated. An AC compressor contains a motor with start and run windings. Belts too loose. Replacing an AC compressor is almost as simple as replacing any other accessory on your motor like the alternator or power steering pump. Since the crankshaft pulley drives the AC compressor, a seized AC compressor will keep the crankshaft from turning. Significantly cuts costs by eliminating the need for a new A/C compressor. details about a/c ac compressor clutch kit pulley coil plate for jeep cherokee wrangler tj 4. I have a 2007 PreRunner with a v6. We often get calls from customers looking to see if we sell just the clutch plate or pulley for their car aircon compressor. Here's what a typical ac compressor looks like: Try to turn the pulley assembly by hand. I have a 1992 Explorer. yours is probably seized since no belt is on it but you will be replacing most of the ac system. Turns out the compressor is seized and the clutch burned up. However, there is a small two prong electrical connector on the back of the old compressor that did not come with my new compressor held in place by a snap ring. Added a quart of what? Are you refering to the ac condenser? Did the ac pulley lock up or just the compressor? Most mfgs. It is a good candidate for conversion to R134-a refrigerant. If you saw smoke coming from the belt, then either the a/c compressor clutch was engaged or the clutch was seized to the compressor shaft. The compressor is engaging and disengaging fine. Well the compressor could seize or the clutch pulley could seize. The pulley bolts in place of your compressor to retain your belt routing, but the belt only spins the pulley rather than powering the faulty compressor. With the engine off you could easily test the clutch the same way with direct power. The AC system is toast. Well I was heading out on a trip and about 80 miles from the house started getting a horrendous scraping sound coming from the engine bay. This happened at 210k,so we really can't complain. Eccentric rotating operation designed for maximum force with little effort. Sounds like maybe the compressor is seized -- was AC on or did you have the blend knob on defrost? Turn off the HVAC completely and see if it goes away. New ac compressor clutch kit : consists of clutch plate, pulley, bearing and clutch plate 2006-2010 mazda 5 l4 2. AC compressor replacement If you have noticed that your AC compressor is worn out, try to replace it as soon as possible. Probably the most widespread symptom of a compressor failure (besides no cooling) is often a seized compressor. The reason is that the pieces of the compressor are now shredded and have been sent through the system. The Air conditioning compressor is likely seized. Trying to verify that my compressor is seized. Refer to the Heating, Ventilation and Air Conditioning (HVAC) section of SI. If the clutch hub is what is smoking only during clutch engagement, you may have seized the compressor. I was able to locate it to the passengers side, then to the pulley attached to the AC compressor. If the clutch seized to the compressor hub, the A/C would run all the time. 2) Loosen idler pulley nut, relieve tension on belt and remove belt. while a seizing or seized bearing will produce a grinding noise or a noticeable belt squeal. The pulley bolts in place of your compressor to retain your belt routing, but the belt only spins the pulley rather than powering the faulty compressor. the pulley looks like it is two parts, a pulley and then a cover, the pulley always spins,but the cover doesn't, then the out part (cover) begins to spin and makes a noise. This allows the compressor to use the engine power only when it is needed. We often get asked if we can supply a new car air conditioning compressor (aircon pump) clutch plate, or pulley as the unit on the car is noisy. Turn the air conditioning controls to MAX AC and start the engine. Try removing the serpentine belt to rule out a seized pulley. Take it apart and survey the damage. Now there's an affordable, effective way to get your vehicle up and running after a seized A/C compressor renders it inoperable. My A/C recently topped cooling the air so I brought it in to the dealer and they say that the compressor is seized. About 450 parts and labor. how i check the compressor clutch?? i mean how i know it's need to change?? i check the wire they go to ac compressor and it 14 v in their so it is not form ac rely or electrical problem. Never realized it. An automobile air conditioner (AC) compressor compresses refrigerant and allows it to circulate through the system, cooling the vehicle. Doesn't look like I can get a smaller belt and re-route either, because the belt tensioner sits between the crankshaft and compressor. If you're getting squealinf whenever the A/C turns on , then your A/C compresor may be seized (compresor isn't spinning, so every time the A/C clutch engages, you squeal the belt). I thought of putting a bypass pulley on it, but it seems no one makes one for that particular car. Does anyone know if the belt will pass between the AC pulley and the tensioner?. The Air conditioning compressor is likely seized. My AC compressor on my 2010 Ford Focus SE has completely seized. In most cases, the AC bypass pulley will bolt up in place of a malfunctioning compressor unit. the center of the pulley on the. The defective air conditioning compressor is removed and replaced with this new bypass pulley assembly. Clicking this will make more experts see the question and we will. You said your A/C hasnt been working. Mine was seized as well when i tore my rig down. Since the crankshaft pulley drives the AC compressor, a seized AC compressor will keep the crankshaft from turning. When turning on your AC or Defroster, you may find a loud squeal or smoke from your AC Compressor Clutch and/or fan belt which may indicate a frozen AC Compressor not allowing the pulley to spin when the clutch is engaged. Hello I'm new to the site and think it is great! Here is my problem. Also have you tried to spin the pulley by hand with the belt off? The A/C pulley is on a clutch that allows it to free wheel when the compressor does not need to be on. In addition to the AC compressor clutch, we also talk about repairing the AC belt idler. details about a/c ac compressor clutch kit pulley coil plate for jeep cherokee wrangler tj 4. I ordered a new one, and swapped them out. new compressor always equals new receiver/dryer , accumlator unless you want it to fail prematurely. Now one of the ac assembly hoses rubbed against air filter mount and ruptured. From Car Talk: A/C jobs either cost $50 or $1500. the center of the pulley on the. Car not drivable. If it's the compressor that seized then you're going to need a new compressor, new filter/dryer, new condenser and possibly new hoses, and expansion valve. The A/C completely seized and the pulley is no longer turning. Now, turn on the air conditioning and look again. Both the outer pulley and the inner hub should be turning, indicating the clutch is. I will eventually be replacing the compressor - was not in a position to pick one up in Moab. Now one of the ac assembly hoses rubbed against air filter mount and ruptured. Issue I'm having is how to install the pulley back on. Possible seized drive pulley ( alternator/AC compressor etc ). Thanks, Hasan. Does anyone know if the belt will pass between the AC pulley and the tensioner?. I will replace the water pump and thermostat as well since the car has over $150k miles. If not, then the pulley bear is shot. The clutch is toast, visible melted plastic. Posted by bnewfie on Aug 17, 2009. AC compressor replacement If you have noticed that your AC compressor is worn out, try to replace it as soon as possible. Resulting in: 1+2) For safety reasons the limiter of the pulley hub will break instead of drive belt. I finally got a mechanic to check it and he pointed out that belt was fine but the ac compressor's front clutch is broken. With fan belt off, turn the AC/Defroster to off and check if the Bearing is still good and if the Pulley spins freely. I'd be VERY careful about running it until you have it fixed (or at least looked at by a CERTIFIED A/C shop). A/C Compressor Pulley siezed 2 Answers. (compressor still attached to system and car). An automobile air conditioner (AC) compressor compresses refrigerant and allows it to circulate through the system, cooling the vehicle. Verifying That The AC Compressor Is Not Seized. If the pulley still rolls freely, the most likely problem is the compressor seized. if the pulley layout or any other parts are different you will need to swap them out with junkyard parts. Original I was going to replace just the clutch then the compressor. Also have you tried to spin the pulley by hand with the belt off? The A/C pulley is on a clutch that allows it to free wheel when the compressor does not need to be on. The Air conditioning compressor is likely seized. What size belt (length ) do I need an how should I route it?. That pulley is not spinning at all. My AC Compressor seized on my 94 Suzuki Swift 1. What your arrow appears to be pointing at is the ac compressor unit. KA24DE AC Compressor to SR20DET Conversion Bracket/Kit Arguably one of the biggest issues/pet peeves with the SR20 swap in USDM S chassis cars it the lack of working AC in them. This allows the compressor to use the engine power only when it is needed. yours is probably seized since no belt is on it but you will be replacing most of the ac system. Opened up hood and the belt was smoking from the AC pulley not moving. won't guarantee the compressor without a new accumclator. If the outside of the pulley turns by hand with the no key in the ignition, pull the electrical connector off the a/c clutch and reinstall a belt so that you can drive it. Repair estimate to replace compressor, belt, receiver-drier (due to debris in system) is $1100-1500, which isn't really in the budget right now. My AC compressor has seized, melting my belts !!! Wish I had spotted the signs sooner. I asked the mechanic to just bypass the air conditioning system with a smaller serpentine, but he says it can't be done. Want Answer 0. Serpentine be. I have received mixed information regarding this. I just bought a 2004 Outback and the AC is not working. Upon further inspection, I discovered that only a few fragments of the drive belt for the compressor exist. Ok time to "fess up. Hypothetically if the compressor did seize on you by simply pressing the "AC" buttom on your climate control it would have disengaged the electromagnet on the compressor releasing the pulley to spin freely thus you would've stopped seeing smoke coming out of your compressor. The AC Delco part number for the current replacement compressor is shown above. Dorman's A/C Compressor By-Pass Pulley is installed in place of a new compressor, significantly reducing parts and labor costs. Looking under the hood, it appears the previous owner bypassed the AC compressor pulley/clutch by installing a smaller belt to the crank pulley/alternator side (hopefully that makes sense). belt caught on fire when clutch pulley seized. The A/C Compressor Pulley is seized up on my 2006 Taurus. 2006 jetta tdi(brm) ac compressor area started making popping noises. Repair estimate to replace compressor, belt, receiver-drier (due to debris in system) is $1100-1500, which isn't really in the budget right now. The belt was smoking a little, but more smoke was coming out of center of the compressor, from the small holes in the clutch. We had to do the bypass in order to get the jeep mobile again. If the compressor seized up internally, the belt would slip on the pulley and eventually snap. Dorman's A/C Compressor By-Pass Pulley is installed in place of a new compressor, significantly reducing parts and labor costs. When the AC is turned on, the clutch engages: the magnet in the clutch attracts the outer ring and the outer ring snaps on the pulley and spins with it thus powering the compressor. Examining Air Conditioning Clutch Failures in the Field This guide can be used as a reference to diagnose clutch failures, and is specifically designed to help you differentiate between unwarrantable clutch failures and those that would normally fall under possible warranty consideration. The A/C completely seized and the pulley is no longer turning. They do make compressor bypass blanks that specifically to replace the A/C compressor assembly with a bracket and free-wheeling pulley. The AC compressor is seized on my winter rat 1987 Ford Tempo w/ a 2. Started the car, pulled out if a parking spot, within a minute I see smoke, smell burning rubber, and lose power steering. while a seizing or seized bearing will produce a grinding noise or a noticeable belt squeal. The AC compressor has its own clutch which is connected to the engine by a pulley. With fan belt off, turn the AC/Defroster to off and check if the Bearing is still good and if the Pulley spins freely. So then, the next step (after ascertaining that the engine can't be hand cranked) is to remove the drive belt or serpentine. This type of work is one of the highest cost tasks for a. I bought this compressor/clutch assembly for my 1995 GMC Sierra 1500 just to quickly repair a squealing clutch pulley before it seized on a pending trip out of town. Maybe ??? It depends upon the type of compressor, and how it is controlled. do it right or not at all but it will probably cost half of what your car is worth maybe more. About 450 parts and labor. If you need a compressor bypass pulley, check out the options at O'Reilly Auto Parts. Thanks for any input. Would this mean that the bearing is seized or that the compressor needs changed out? (No experience in this subject). If a serpentine belt goes around an a/c compressor clutch pulley and the compressor is locked up, it is okay to have the belt as long as the a/c compressor clutch is not activated. Re: bypass ac compressor in 1999 chrysler sebring If i remember right that is a one belt system. A 1997 Saturn SL1 has a seized air conditioner compressor. The 2012 Ford Focus has 5 problems reported for a/c compressor failed. Significantly cuts costs by eliminating the need for a new A/C compressor. A torn or broken serpentine belt due to a seized A/C com-pressor idler bearing has no drive for the water pump, power steering pump, A/C compressor, etc, effectively rendering the vehicle inoperative. Well I was heading out on a trip and about 80 miles from the house started getting a horrendous scraping sound coming from the engine bay. Sounds like maybe the compressor is seized -- was AC on or did you have the blend knob on defrost? Turn off the HVAC completely and see if it goes away. Try turning the pulley with the car shut off. A/C failure: Clutch or compressor? the clutch is seized. So I am going to have to either bypass with the AC comp or use a bypass pulley. Opened up hood and the belt was smoking from the AC pulley not moving. Refer to the Heating, Ventilation and Air Conditioning (HVAC) section of SI. Because of the high-pressure load the piston creates during startup, the motor uses its start windings to reach full speed. A 1997 Saturn SL1 has a seized air conditioner compressor. Harrison R4 AC Compressor Repair Tutorial. Get deals on automotive parts, truck parts and more. My AC idler pulley was sounding terrible, and I did not have time to source the 6301 sealed bearings and replace, so here's what I did. When I removed the clutch and then the pulley I found the blown out bearing and completely unwound mag coil. After I fixed the leaks, I recharged and still no compressor action. Learn how to recharge your vehicle’s A/C system here:. Ugh, my A/C compressor pulley seized up this morning I tried disconnecting power to the compressor to disengage the clutch, but it still doesn't spin. Verify that the serpentine belt is not damaged or missing. Upon further inspection, I discovered that only a few fragments of the drive belt for the compressor exist. The pulley bearing slips over a sleeve outside the shaft, so the pulley moves freely. Shop at 1A Auto for a brand new Ford A/C Compressor Bypass Pulley, at a great price. The air conditioner compressor is a component in an automotive air conditioning system. (bearing was shot) The AC compressor pulley (without belt) spun freely but was a little rough (could be a bit of sand or some rust from sitting for a long time) doesnt make noise with the belt on though. So what make a new belt shred when the compressor doesn't seize? I think the indy put the seal rings in the incorrectly in the R4 so it leaks. I'd be VERY careful about running it until you have it fixed (or at least looked at by a CERTIFIED A/C shop). A/C Compressor Pulley siezed 1 Answer. The compressor can be bypassed with a shorter belt though, correct? Anyone know what size belt would be needed?. Our A/C Compressor By-Pass Pulley is installed in place of a new compressor. Serpentine be. I ordered a new one, and swapped them out. New ac compressor clutch kit : consists of clutch plate, pulley, bearing and clutch plate 2006-2010 mazda 5 l4 2. there wasnt enough oil in the compressor and it has seized - this is the. If you need a compressor bypass pulley, check out the options at O'Reilly Auto Parts. Rather than putting out $1200 for a new one, am I able to just bypass the compressor with a smaller belt? or do I disengage the compressor so the pulley can move freely?. Classic Auto Air offers replacement compressors and can custom restore your original GM compressor. An idling pulley when disengaged and that pulley locks (engaged) when so and compressor is pumping unless seized. If you just "short circuit" that compressor pulley, that belt run between the remaining pulleys is a LONG distance, might be more than what the belt is rated for. Unless the A/C compressor pulley is seized, you don't need a bypass pulley. Maybe ??? It depends upon the type of compressor, and how it is controlled. compressor seized (pulley won't turn), belt smoked/melted/broke (under 10 seconds from first squeal to popped belt). Now there's an affordable, effective way to get your vehicle up and running after a seized A/C compressor renders it inoperable. Ok so new/reman AC compressors are more than I'd like to spend on trying to fix my AC since I'm in PA and its not an absolute necessity. It was either this hole, or the one next to it. You should restore or replace your compressor if your air conditioning system has poor system gauge readings, the compressor is leaking, has seized or is knocking, you're converting the system to 134a, your AC system has been inoperable for a long period of time or you're doing a complete air conditioning system restoration. 64-71 Mega Compressor MP-2504T 4. Mainly because the clutch plate fails usually as a safety precaution, to protect the engine and drivebelt. Buy Air Conditioning Compressor By-Pass Pulley - NOE 6601814 online from NAPA Auto Parts Stores. Started the car, pulled out if a parking spot, within a minute I see smoke, smell burning rubber, and lose power steering. If you're ready to learn how to replace an AC compressor, read this whole article first before you head to the garage. The A/C compressor pulley wobbled and made noise when I spun it. A/C Compressor Bypass Pulley (34190) by Dorman®. i had dye put through my ac and showed a hole in one if the pipes( it had been rubbing on the bodywork and worn through) so replaced and realigned and all has been good the last four years. Your Toyota Pickup AC Compressor moves your climate control coolant into the condenser. You can easily check the compressor (with engine off make. Short story: Both my AC and Serpentine Belt fell off (spun off at high revs presumably) during my past 2 track days. If you need a compressor bypass pulley, check out the options at O'Reilly Auto Parts. I got under there and watched the compressor engage and disengage and it worked like it should. I ordered a new one, and swapped them out. A humming noise can also point to a bad starting capacitor. From Car Talk: A/C jobs either cost $50 or $1500. Also have you tried to spin the pulley by hand with the belt off? The A/C pulley is on a clutch that allows it to free wheel when the compressor does not need to be on. While in the past you were limited to opening the windows and just dealing with the wind and noise, over 80% of new cars are now fitted with air conditioning. Thankful that I could remove the Targa top, I would have melted without AC or an open top. If the clutch hub is what is smoking only during clutch engagement, you may have seized the compressor. A/C Compressor Bypass Pulley by Dorman®. Seized air conditioner or heat pump compressor motor diagnosis: This air conditioning repair article discusses the Diagnosing Tight or Seized Air Conditioning Compressors and how to re-start a tight air conditioning compressor. If your compressor just seized up, i would think your evaporator should be fine. That was a month ago. com for around $275 to $350. while a seizing or seized bearing will produce a grinding noise or a noticeable belt squeal. So then, the next step (after ascertaining that the engine can't be hand cranked) is to remove the drive belt or serpentine. The AC Compressor replacement cost is minimal compared to the amount of comfort and solace that a nice cool can provide on a hot summer day. Maybe ??? It depends upon the type of compressor, and how it is controlled.