Ac Compressor Pulley Seized

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). the center of the pulley on the. Just an idling pulley when off and when engaged to compress is using compressor itself and clutch as a pulley is turning but. Thanks, Hasan. Is it possible - Answered by a verified Ford Mechanic. From what I see peeking into the belt area, and from the diagram on the top of the radiator, this fix will NOT work. or you can just keep the same belt and fab a dummy pulley to take the place of the A/C compressor pulley. An automobile air conditioner (AC) compressor compresses refrigerant and allows it to circulate through the system, cooling the vehicle. DL-pulley was aimed for Dampening compressor torque fluctuation and Limiting. When the familiar hum of your Charlotte, NC home's air conditioner is interrupted by unfamiliar noises, it's a good idea to be concerned. As some of you know, during the 2014 Convention the bearing in the AC compressor pulley exploded during the trip out to Karting. Could this just be the bearing and can be replaced? or? Any help would be awesome. A seized A/C pulley won't stop it from starting. Classic Auto Air offers replacement compressors and can custom restore your original GM compressor. Without engine oil, your engine seizes. As most of the vehicles now are equipped with an air-conditioning system, the AC compressor is the most important part which starts the AC cycle and therefore, that’s why if it fails, it decreases the efficiency of the AC system. 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. The compressor in your air conditioner needs a specific amount of voltage at a specific amperage in order to start running properly. Verify that the serpentine belt is not damaged or missing. 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. On some vehicles it is not possible to remove the A/C Compressor. Number of Grooves: 7. Long story short, air conditioner compressor noises are usually bad news. Not all metal was recovered from system - compressor seized. It took a little pounding to get the bearing back on the shaft. Seized (Locked Up) Compressor due to Loss of Lack of Lubrication Compressor lock-ups also involve the clutch. 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. This is 1995 Thunderbird LX. A/C Compressor Pulley siezed 2 Answers. AIR CONDITIONING COMPRESSOR BYPASS PULLEYS. Well in typical GM. Now you can't get away with just replacing the compressor. This problem happened after I adjusted the belt due to a bit of squeeking. Thanks, Hasan. do it right or not at all but it will probably cost half of what your car is worth maybe more. belt caught on fire when clutch pulley seized. AC is cold. Did you take the tension of the tensioner pulley to slip the belt on or did you force it on. Open the hood and inspect the A/C compressor for damage and to see if the compressor is seized. I wonder if I can replace the serpentine belt with a belt of a non AC model to bypass the AC compressor. Does anyone know if the belt will pass between the AC pulley and the tensioner?. or you can just keep the same belt and fab a dummy pulley to take the place of the A/C compressor pulley. I was able to locate it to the passengers side, then to the pulley attached to the AC compressor. It was charged, just wouldnt blow cold air. « back to AC / heater; Complaints and only have 175 miles on it the a/c compressor seized up causing the vehicle to. The a/c compressor did not want to turn over and when activated it smoked the serpentine belt. So I replaced the clutch, pulley and coil. A 1994 Buick Skylark Custom has a seized air conditioner compressor. So then, the next step (after ascertaining that the engine can't be hand cranked) is to remove the drive belt or serpentine. It will not turn when the magnetic clutch engages, and you may hear squeals of protest from the drive belt. AIR CONDITIONING COMPRESSOR BYPASS PULLEYS. The clutch's function is to engage and disengage the compressor from the vehicle's accessory drive system. 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. We also had to remove the compressor to make sure the shorter belt did not rub against the seized pulley. Go to: Verifying That The AC Compressor Is Not Seized. As some of you know, during the 2014 Convention the bearing in the AC compressor pulley exploded during the trip out to Karting. Here are some of the more common types and causes of A/C compressor noise. If you have a noise in the air conditioner compressor that has you stumped, or any other home comfort questions, contact the pros at. The belt was slipping over it and burning up. Make an offer! My Location 2003 Corolla ac compressor. 4) The AC clutch and pulley assemblies are as follows: 5) Remove clutch center bolt using the clutch tool as follows. Serpentine be. For the last few weeks, I have been having rattling noises from the engine which I now suspect it could be the AC compressor. The belt was smoking a little, but more smoke was coming out of center of the compressor, from the small holes in the clutch. So I replaced the clutch, pulley and coil. Dorman's A/C Compressor By-Pass Pulley is installed in place of a new compressor, significantly reducing parts and labor costs. Could this just be the bearing and can be replaced? or? Any help would be awesome. 3 codes in, cleared and they are back instantly (P0483, P0700, P2509) I am pretty sure my AC compressor is seized but just not sure if that corresponds to these codes?. Fixing AC compressor problems increases the unit's efficiency and extends its life. I replaced the belt and bypassed the AC and never had it looked at. I searched and couldn't find a recommendation on how to fix the problem I have. From Car Talk: A/C jobs either cost $50 or $1500. Air Con Clutch and Pulley Replacement. Dorman's A/C Compressor By-Pass Pulley is installed in place of a new compressor, significantly reducing parts and labor costs. Find our best fitting a/c compressor bypass pullies for your vehicle and enjoy free next day delivery or same day pickup at a store near you!. I'm sure ive been told before that the gas lubes the compressor but i might be wrong. 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. Seized compressor is a rather rare failure and in your case, actually requires 2 failures to occur. Hi there, yes, the air conditioning compressor is capable of breaking the serpentine belt a couple of ways. Now I want to just delete the whole unit and get a bypass pulley bracket. Definitely a much cheaper route. Stuck AC Compressor Clutch. These days you can go online to a GM parts seller and look at an exploded view of the AC system. Refer to the Heating, Ventilation and Air Conditioning (HVAC) section of SI. This article originally appeared on. 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. When I removed the clutch and then the pulley I found the blown out bearing and completely unwound mag coil. I can turn both the clutch and the compressor pulley easily and independently by hand, suggesting that the compressor is not seized. Once you turn on the AC the center part of the compressor, the AC clutch should engage and start to rotate with the pulley. If your air conditioning isn't working properly, you may need to replace the A/C compressor clutch to fix the problem. The other day out of town on a camping trip I got a little warm and turned on the ACno cold air, then smelled a burning smell. Verifying That The AC Compressor Is Not Seized. Could this just be the bearing and can be replaced? or? Any help would be awesome. If it's the compressor making the noise and not the pulley/clutch, that should work. Apparently the a/c compressor pulley seized, breaking the belt. 2) Loosen idler pulley nut, relieve tension on belt and remove belt. Free Same Day Store Pickup. I checked the freon pressure in the sysytem and its 22-25 Lbs so there is no leak. When I removed the clutch and then the pulley I found the blown out bearing and completely unwound mag coil. Mine does not. You should have 12 volts going in and out of the low-side pressure switch (if there is sufficient pressure). 20771 I removed the belt, thinking my A/C compressor pulley was seized, but it spins. There is a clutch in the pulley that engages the compressor when the A/C is turned on. « back to AC / heater; Complaints and only have 175 miles on it the a/c compressor seized up causing the vehicle to. If your compressor is seized or non-working this item is for you. Is it possible - Answered by a verified Ford Mechanic. Some people don't like the plastic pulley, but there's not stress on the pulley at that point. Attack of the Killer Bs: The Renault 5 Turbo, Audi Sport quattro, Peugeot 205 Turbo 16, and Lancia Delta S4 Stradale. The Air conditioning compressor is likely seized. Seized Air Conditioning Compressor. I plan to replace the compressor myself. The AC compressor is seized on my winter rat 1987 Ford Tempo w/ a 2. The compressor is leaking, has seized or is knocking. The other day out of town on a camping trip I got a little warm and turned on the ACno cold air, then smelled a burning smell. The primary function of an air conditioning bypass pulley is to stand in for an AC compressor that has stopped working. Long story short, air conditioner compressor noises are usually bad news. saw a couple of youtube videos and did a bearing replacement myself without disconnecting AC lines, now the compressor clutch engages with no problem or noises, but it is blowing hot air. 20771 I removed the belt, thinking my A/C compressor pulley was seized, but it spins. AST7886 Features: -Replaces clutches found on FS6, C171, 6P, and 148 compressors. If it's good, then it should be perfectly smooth and very very easy to turn. There is a clutch in the pulley that engages the compressor when the A/C is turned on. if the pulley layout or any other parts are different you will need to swap them out with junkyard parts. I don't want to remove the compressor. My ac compressor has seized up and now needs to be replace at a cost of nearly 2,000. The Sanden compressor is equipped with a serpentine pulley which of course we are not going to use now. A shorter belt would rub into my seized AC pulley. 2 L in-line Envoy, Trailblazer, Rainier this is a great solution at a cheap price but you'll have no A/C air-conditioning. Seized component. However i know on certain vehicles you can buy a pulley bracket to bolt where the A/C compressor would sit/ and or get a shorter belt. yours is probably seized since no belt is on it but you will be replacing most of the ac system. Well the compressor could seize or the clutch pulley could seize. Many modern systems use a bypass valve that lets the compressor continue to turn, even though it's output is pumped straight back into it's inlet, resulting in very little. 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. I had the compressor not turning fault on mine, the pulley has no clutch on it like normal aircon compressors and runs all the time with a valve in the rear of the compressor controlling the output, the pulley has a rubber drive in it thats designed to shear if the compressor stops for any reason while running to prevent the belt breaking, now. If your compressor is seized or non-working this item is for you. Hello, my AC stop working just like that check under the hood and notice the AC pulley not spinning when the car is still running! Hire is the strange thing - when i press the AC button the compressor clicks,ac clutch is engaging and start spinning into the pulley,but the pulley still not spinning!. Now there's an affordable, effective way to get your vehicle up and running after a seized A/C compressor renders it inoperable. The A/C completely seized and the pulley is no longer turning. I found the bearing number on another thread just after posting this but I'm damned if I can find it again now. I can see that much if they are replacing the evaporator, that is buried in the dash. That will probably cost more than the car is worth. I could smell the rubber from the belt and could feel the engine was rough whenever I would try to engage the AC (I thought the fans were out of balance). A shorter belt would rub into my seized AC pulley. I tried pulling the pulley in the oven (170F) and it's nowhere near enough. If the clutch bearing or the internal components of the compressor are seized, the pulley won't be able to spin the compressor at all. The A/C completely seized and the pulley is no longer turning. AIR CONDITIONING COMPRESSOR BYPASS PULLEYS. 3) Confirm noisy bearing by spinning pulley as show in video above. Just bolt it in place of the A/C compressor and reinstall the belt. 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. The belt was smoking a little, but more smoke was coming out of center of the compressor, from the small holes in the clutch. Well in typical GM. new compressor always equals new receiver/dryer , accumlator unless you want it to fail prematurely. 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. Is it possible - Answered by a verified Ford Mechanic. Using a pick between the outer race and the plastic bearing seal, remove seal. No need to worry if it works in the sense of getting the aircon working, just to make your car useable again. This can be replaced without removing the compressor, or losing the gas, but you will need the proper tool for removing the driven plate which is attached to the compressor shaft, which is what you were turning. 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. This is 1995 Thunderbird LX. So the belt of course keeps on going and it makes this loud annoying screeching noise. As most of the vehicles now are equipped with an air-conditioning system, the AC compressor is the most important part which starts the AC cycle and therefore, that’s why if it fails, it decreases the efficiency of the AC system. When you turn your air conditioning on, the A/C compressor clutch is the first part to move. If the A/C compressor is seized, proceed to step 5. A harsh squealing sound can indicate a seized AC compressor. 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 compressor bypass pulley is a great solution to a seized up air conditioning pump at a fraction of the cost of a new pump. Refer to the Heating, Ventilation and Air Conditioning (HVAC) section of SI. A/C Compressor Pulley siezed 1 Answer. the center of the pulley on the. Seized Air Conditioning Compressor. In this video we will show you how we fixed our locked up ac compressor. Apparently the a/c compressor pulley seized, breaking the belt. Dorman's A/C Compressor By-Pass Pulley is installed in place of a new compressor, significantly reducing parts and labor costs. However, when they seize that badly, they often damage the neck of. The motor turns a piston that compresses the system's refrigerant. 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. Seems the stang has a few inches in front of compressor that might make removal a bit easier. The thing won't go on. Using a pick between the outer race and the plastic bearing seal, remove seal. The role of your Chevrolet air conditioning compressor is very crucial as it helps in pumping the refrigerant to the entire AC ,Bypass Pulley Fits 1997, 98, 99, 2000 Chevrolet Venture 3. So I replaced the clutch, pulley and coil. You should also be able to turn it by hand. And, a compressor from the dealer is a TON of money. Go to: Verifying That The AC Compressor Is Not Seized. A compressor that is seized may also contaminate the rest of the A/C system with metal debris. Number of Grooves: 7. 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. A/C Compressor Pulley Seized From what I can tell the pulley is no longer spinning and the serpentine belt merely sqeaks around the frozen unit whether or not the clutch is engaged. Get deals on automotive parts, truck parts and more. If your compressor is seized or non-working this item is for you. A/C Compressor Pulley siezed 1 Answer. If the compressor is seized, the entire clutch assembly will be stationary. 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. Seized compressor is a rather rare failure and in your case, actually requires 2 failures to occur. Re: AC Pulley bypass if your truck was available without A/C then you need the belt for that mode. I don't want to go hotter as I may damage the sealed bearing seals. So the belt of course keeps on going and it makes this loud annoying screeching noise. Well the compressor could seize or the clutch pulley could seize. If you have a situation where your car’s air conditioner compressor clutch doesn’t engage, try the troubleshooting techniques described here. AST7886 Features: -Replaces clutches found on FS6, C171, 6P, and 148 compressors. ) and when the clutch engages it overloads the engine. AC compressor replacement If you have noticed that your AC compressor is worn out, try to replace it as soon as possible. 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. Dorman Products - 34272 : Air Conditioning Bypass Pulley. The bearing measures 35x55x20mm but the only part number I can find is 35BG05S10G-2NR which I'm not sure is the same number I found before. Turn the AC on and the pulley stops spinning. The 2012 Ford Focus has 5 problems reported for a/c compressor failed. belt caught on fire when clutch pulley seized. The ac wasnt working well to begin. I have a ’97 Ford F-150 and I the AC compressor is seized up. I would guess that if the early type compressor (fitted with a magnetic clutch pulley) seized, the clutch would possibly not hold and would burn out rather than take out the serpentine belt, leaving the outer pulley to rotate but the inner part static. This happened at 210k,so we really can't complain. Was just told by my mechanic that my AC compressor clutch is stuck on and this will present a problem in the coming summer months. Sadly it's probably your compressor along with the pulley idler bearing that has seized. If only the pulley is turning, there's a. The AC Compressor never seized up, hasn't ever been open and so I don't think the lines/system should have any debris. Best Answer: The a/c pump has seized but it would a little rare for the clutch to seize as well. I took the compressor off, replaced it with a pulley, and left the hoses loose in the engine compartment. PROBLEM:An engine with a seized A/C compressor idler bearing can-not be driven. Automotive Replacement Air Conditioning Pulleys Automotive Replacement Air Conditioning Compressor Clutches Automotive Replacement Air Conditioning Clutches & Parts. 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. Unfortunately it has probably been used with low or no gas left in it, which then damages the compressor. 05-24-14 11:09 AM - Post# 2455593 My AC compressor seized up about 6 months ago and snapped the belt. Just unplug the connector that energizes the compressor clutch and secure it to keep it from engaging. No need to worry if it works in the sense of getting the aircon working, just to make your car useable again. AC oil Buy here https://amzn. 1+2) For safety reasons the limiter of the pulley hub will break instead of drive belt. Get the job done with the right part, at the right price. Use AC bypass pulley to replace AC compressor and keep the same belt setup. It was charged, just wouldnt blow cold air. My ac compressor has seized up and now needs to be replace at a cost of nearly 2,000. 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. 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. You still need the belt to go around the upper part of the idler pulley just above the A/C compressor and below the. the center of the pulley on the. A harsh squealing sound can indicate a seized AC compressor. A humming noise can also point to a bad starting capacitor. Just bolt it in place of the A/C compressor and reinstall the belt. No alternator movement and the engine stopped running. Once you turn on the AC the center part of the compressor, the AC clutch should engage and start to rotate with the pulley. I was then 3rd in line for a compressor at this dealership - the other two are still drivable. Brand new air conditioning bypass pulley for 1997-2003 Ford F-Series Pickups (See Below). The A/C compressor bypass pulley is a great solution to a seized up air conditioning pump at a fraction of the cost of a new pump. From what I see peeking into the belt area, and from the diagram on the top of the radiator, this fix will NOT work. So I replaced the clutch, pulley and coil. You could replace the clutch and realize the compressor is seized when it tries to engage. Is there any way to bypass the AC with a shorter belt? Reply 1: You can use a. The AC compressor continued to turn even after I pulled the 12-volt supply wire to the unit. From what I see peeking into the belt area, and from the diagram on the top of the radiator, this fix will NOT work. After some searching, I found the idler pulley or even the alternator pulley could be the culprit. It was charged, just wouldnt blow cold air. The comp pulley will not budge so it could be the compressor too but the clutch should spin I think. 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). So the belt of course keeps on going and it makes this loud annoying screeching noise. This can allow all of the other accessories to continue functioning just as if the AC compressor was still in place. Definitely a much cheaper route. A couple of year ago I'm assuming the clutch/compressor seized up. Sometimes the air conditioning compressor can be become seized and this puts a lot of strain on the serpentine belt. Yesterday the a/c compressor - alternator belt broke on 2006 Freightliner Columbia (Detroit 60). Dorman's A/C Compressor By-Pass Pulley is installed in place of a new compressor, significantly reducing parts and labor costs. 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. Dorman 34248 Air Conditioning Bypass Pulley. AST7886 Features: -Replaces clutches found on FS6, C171, 6P, and 148 compressors. While cranking compressor should be off but if bearing of clutch welded up would turn compressor which a good battery and starter would usually overcome. 3) Alternator free run pulley seized, broken belt tensioner, crankshaft damper or dual mass flywheel. The "plate" that sits on the outside of the pulley is making the noise. Now try to turn the clutch plate by hand, that will turn the ac compressor. It just acts as an idler. Now there's an affordable way to get your vehicle up and running after a seized A/C compressor renders it inoperable. The short belt is on but it hits the pulley. 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. ac compressor You mean the clutch is frozen until you turn on the ac? Then the clutch both (1) becomes moveable and (2) engages the pulley and turns? I would think the clutch should turn along with the pump since these two appear to be connected by a shaft. I found the bearing number on another thread just after posting this but I'm damned if I can find it again now. Fixing AC compressor problems increases the unit's efficiency and extends its life. An idling pulley when disengaged and that pulley locks (engaged) when so and compressor is pumping unless seized. If it's indeed seized, get an A/C compressor from a junk yard. If the AC compressors seizes while operating, the shock load can snap the serpentine belt. Locate the AC compressor and remove the serpentine belt from the compressor's pulley. Yesterday the a/c compressor - alternator belt broke on 2006 Freightliner Columbia (Detroit 60). 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. Manufacturers design serpentine belts to drive accessories on the engine. Contacting a professional technician for an inspection is the best step to take. After some searching, I found the idler pulley or even the alternator pulley could be the culprit. I'm sure ive been told before that the gas lubes the compressor but i might be wrong. The A/C Compressor Pulley is seized up on my 2006 Taurus. My ac compressor has seized up and now needs to be replace at a cost of nearly 2,000. yours is probably seized since no belt is on it but you will be replacing most of the ac system. However i know on certain vehicles you can buy a pulley bracket to bolt where the A/C compressor would sit/ and or get a shorter belt. You need the A/C compressor clutch to get seized to the compressor pulley, and then need the compressor itself. The short belt is on but it hits the pulley. You're doing a complete air conditioning system restoration. It has the task of pumping a refrigerant gas, which is typically freon. I plan to replace the compressor myself. The air conditioner compressor has seized up and now the belt is just slipping on the AC pulley. All you should have to do is just wind in your outer screws evenly and it should just pop off. I wonder if I can replace the serpentine belt with a belt of a non AC model to bypass the AC compressor. When you turn your air conditioning on, the A/C compressor clutch is the first part to move. The reason is that the pieces of the compressor are now shredded and have been sent through the system. Just be sure that the replacement rings are of the same size since a lot of AC leaks are caused by improperly installed O-rings. Is there any way to bypass the AC with a shorter belt? Reply 1: You can use a. However, when they seize that badly, they often damage the neck of the compressor too. Ok so I ordered a complete ac kit from Vintage Air in Tx about a year and a half ago. But I understand the shorter belt will have to be able to clear the compressor pulley. Sounds like the double row roller bearing that the pulley rolls on is seized. 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. Or, the belt may have already broken or been thrown off its pulleys. I found the bearing number on another thread just after posting this but I'm damned if I can find it again now. « back to AC / heater; Complaints and only have 175 miles on it the a/c compressor seized up causing the vehicle to. ) and when the clutch engages it overloads the engine. These systems are designed to be fairly fail safe. Free Same Day Store Pickup. With the engine off you could easily test the clutch the same way with direct power. Perform the A/C System Performance test. The "plate" that sits on the outside of the pulley is making the noise. Just bolt it in place of the A/C compressor and reinstall the belt. To confirm grasp the most outer plate of the clutch (forward of the belt pulley) and try to turn it. If the clutch bearing or the internal components of the compressor are seized, the pulley won't be able to spin the compressor at all. If you need a compressor bypass pulley, check out the options at O'Reilly Auto Parts. Now there's an affordable, effective way to get your vehicle up and running after a seized A/C compressor renders it inoperable. You should also be able to turn it by hand. There was a squeal, then smoke, then the belt struggled/jumped off/tore up All the accessory pulleys turn easily except for the compressor. The tensioner pulley for the AC belt just needed to be tightened. The pulley is out-of-center and seized. So then, the next step (after ascertaining that the engine can't be hand cranked) is to remove the drive belt or serpentine. There is a clutch in the pulley that engages the compressor when the A/C is turned on. i have 2008 altima 2. Buy Air Conditioning Compressor By-Pass Pulley - NOE 6601928 online from NAPA Auto Parts Stores. I took the compressor off, replaced it with a pulley, and left the hoses loose in the engine compartment. Or, the belt may have already broken or been thrown off its pulleys. Needless to say this won't last long. 2 L in-line Envoy, Trailblazer, Rainier this is a great solution at a cheap price but you'll have no A/C air-conditioning. Now you can't get away with just replacing the compressor. Verify that the serpentine belt is not damaged or missing. The other day out of town on a camping trip I got a little warm and turned on the ACno cold air, then smelled a burning smell. The "plate" that sits on the outside of the pulley is making the noise. The short belt is on but it hits the pulley. 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. Took belt off and compressor turns, but catches every so often. This and knowledge of operation and servicing an ac system is about all you need. We decided to take apart the. Want Answer 0. 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. 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. I recently decided to take a crack at trying to fix it. The center part on the pulley of the A/C compressor will not spin when you have the air conditioner off or if there is a problem. The pulley is belt-driven by one or two V-belts directly from the engine's crankshaft or by a multi-ribbed V belt or serpentine belt.