Question about 1998 Mercury Mystique

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AC pulley bearing is dried up and making noise.

Can I bypass AC pulley with a belt for same model car w/out AC? Or do I real need one of those bypass pulley?

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You can get a belt that will fit that car without ac because not all of them have ac installed. Run to your local autozone or local parts store and they will have exactly what you need.

Posted on May 07, 2010

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If the ac pulley is frozen, can you use a belt for a non ac car and bypass the ac pulley?


NO
you still need an idler for the belt to be tensioned to drive everything else
pull the pulley off the compressor and fit new bearings or if the pulley still spins when the ac is not on , disconnect the wire to the compressor

Feb 02, 2017 | AC Cars & Trucks

1 Answer

Seized A/C compressor


The cause of this is that the roller bearing that the AC compressor pulley turns on is frozen up, the bearing can be replaced but you will need to buy the pulley assembly to get the bearing and you will need a special puller to remove the pressed on pulley. As far as finding a proper belt size to bypass the compressor that is nearly impossible to do, you may get the measurements right but in most cases the belt size you need will not be available, When the factory builds a car or truck with "AC Delete" they install a bypass pulley and the same belt is used for both with and without AC. The cost to replace the bearing is low, and that would be the by far the easiest thing to do here. You can buy the AC tool you need online, just google the year and make.

Dec 27, 2011 | 1997 Oldsmobile Aurora

1 Answer

2002 dodge stratus making very loud noise sounding like metal to metal seeing metal shavings on underpin near ac unit. i can visually see the ac pulley wiggling very hard and that is where the noise is...


There are two companies that I've heard of that make a bypass pulley. One is Dorman the other I can';t remember. Both require that the compressor be removed and the pulley replaces it so you can run the same belt and configuration. You'd need to check with your local parts house to see if they make one for your engine. Most factory systems don't allow for a bypass... the belt usually ends up hitting something and not working.

Jun 27, 2011 | 2004 Dodge Stratus

1 Answer

Usually does it at first start in am , crank pulley is good , ps pulley is good and ac pulley is good. Alignment is perfect , I checked it with a laser alignment tool. I also tried tensioning it real tight...


DRIVE BELTS COULD BE GLAZED NEED REPLACING.BUT CHECK EVERY THING CLOSELY MOST TIME BELT MAKE SQUEAKING NOISE ALTERNATOR BEARING LOCKING UP GOING BAD OR POWER STEERING PUMP GOING BAD.

Oct 16, 2010 | Mazda Protege Cars & Trucks

2 Answers

High pitched howling and screeching (yes two different noises). The howling appears to happen when the air conditioning compressor pulley engages. The screeching, my guess would be from the belt. Any...


When the AC compressor kicks on, an electrical load is placed on the alternator and the drive belt that turns the alternator pulley, if not tight enough, can cause the belt to squeal. Replacing the belt should help with that noise if the belt is stretched from wear. The screeching noise can be from a bad idler pulley, a bad belt tensioner pulley or a bad alternator pulley or a failing clutch on a very old ac compressor and rarely a water pump pulley. To check pulleys remove the drive belt and turn them individually to see if they can be tilted up down or sideways with play in the "bearing" of the pulley. Also, you may wish to visually inspect the clutch on the ac and look for melted black rubber around the bolts that secure the clutch to the compressor (stinks,smokes and melts these rubber areas if ac compressor clutch fails).

Jun 06, 2010 | 1996 Saturn SL

2 Answers

My AC compressor went out on my 2004 Chevy Blazer. Since winter is here, I just want to bypass the ac. I bought a belt for the same yr/make without ac. Where can I find a serpentine belt routing diagram to...


its the same. but a different pulley takes place of the a/c compressor. I know DORMAN makes a few "bypass pulleys" to do this, but dont know if they make one for your truck. at the worst... you will need to get a pulley and bracket from the dealer for a truck without a/c . as long as your a/c pulley bearing is ok, you can let the belt run there.

Oct 14, 2009 | 2004 Chevrolet Blazer

2 Answers

Need to bypass ac compressor on a1997 chevy lumina 3.1l


the models without AC use a AC delete pulley, so there is only one belt size, the pulley goes where the compressor is in your with AC car, contact Ford for the AC delete pulley

Apr 28, 2009 | 1998 Mercury Mystique

2 Answers

Ac makes noise after replacing the serpintine belt


Did you check your ac pulley before installing the belt? check for some play on your ac pulley. your ac pulley bearing must have been worn out and needs replacement.

Oct 20, 2008 | 1996 Jeep Grand Cherokee

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