AC Compressor Bearing
#1
AC Compressor Bearing
1993 Dodge Dakota LE, 5.2L, Auto A518, RWD, 186,000 miles, Original owner
I have some squeaky squeak coming out the front of engine. A pulley no doubt. Occurs after starting truck and seems to disappear in a couple minutes. Thinking it might be the AC compressor bearing. Not likely to be idler, power steering, or alternator cuz they’re not that old. I suppose it could be the fan pulley but I put a new water pump on some 12 years ago. Don’t know if that included a new pully/bearing. Tried a stethascope but it all sounds the same to me.
I can take the serpentine belt off and spin that AC pulley to see what happens but I’m thinking if I turn on the AC the squeak will go away? Just guessing. Haven’t tried doing that yet.
Am I right?
I have some squeaky squeak coming out the front of engine. A pulley no doubt. Occurs after starting truck and seems to disappear in a couple minutes. Thinking it might be the AC compressor bearing. Not likely to be idler, power steering, or alternator cuz they’re not that old. I suppose it could be the fan pulley but I put a new water pump on some 12 years ago. Don’t know if that included a new pully/bearing. Tried a stethascope but it all sounds the same to me.
I can take the serpentine belt off and spin that AC pulley to see what happens but I’m thinking if I turn on the AC the squeak will go away? Just guessing. Haven’t tried doing that yet.
Am I right?
#3
Just tried it. The squeak squeak seems to be there regardless if the AC compressor is engaged or not. It's not a squeeeeeeeeeeeeeeak (constant sound). It's a squeak, squeak, squeak, squeak sound...an up and down sound curve. I'll try it again tomorrow just to be sure.
The power steering pump is 1-1/2 years old (4,600 miles).
The tensioner pulley is 7 years old (18,500 miles).
The idler is 7 years old (19,000 miles).
The alternator is 8 years old (20,500 miles).
The water pump is 10-1/2 years old (31,000 miles).
I loosened the drive belt and tried wiggling the fan to see if I could detect any play on that water pump pulley. None. Tight as a witch's weenie. Not seeing any anti freeze leaks. I suspect if that noise is coming from the water pump pulley then this squeak squeak is just a preview and it will be a little more time before it gets worse.
I guess my action plan is to do nothing unless or until this squeak squeak gets worse. If anyone has any other things I should check then I'm all ears. For the record, I'm sensitive to any pulley noise. It was 7 years ago on I-95 on July 3 the idler pulley failed near a tiny town called Yemassee, SC. The drive belt broke, wrapped itself around the upper radiator hose, and ripped the neck out of the radiator. That cost me a tow and radiator replacement not to mention I was getting a Deliverance vibe in that town (turned out they were good people albeit quiet). Overall it was not a good day so I prefer to prevent that from happening again.
The power steering pump is 1-1/2 years old (4,600 miles).
The tensioner pulley is 7 years old (18,500 miles).
The idler is 7 years old (19,000 miles).
The alternator is 8 years old (20,500 miles).
The water pump is 10-1/2 years old (31,000 miles).
I loosened the drive belt and tried wiggling the fan to see if I could detect any play on that water pump pulley. None. Tight as a witch's weenie. Not seeing any anti freeze leaks. I suspect if that noise is coming from the water pump pulley then this squeak squeak is just a preview and it will be a little more time before it gets worse.
I guess my action plan is to do nothing unless or until this squeak squeak gets worse. If anyone has any other things I should check then I'm all ears. For the record, I'm sensitive to any pulley noise. It was 7 years ago on I-95 on July 3 the idler pulley failed near a tiny town called Yemassee, SC. The drive belt broke, wrapped itself around the upper radiator hose, and ripped the neck out of the radiator. That cost me a tow and radiator replacement not to mention I was getting a Deliverance vibe in that town (turned out they were good people albeit quiet). Overall it was not a good day so I prefer to prevent that from happening again.
#5
Good idea. Will do. The squeak noise has a longer pause between squeaks than what you'd expect if it were a bad spot on the bearing. Longer travel time, longer pause? Just a theory. Gotta pick up a can of dressing. Thx HY.
#6
I had a new belt start to squeak. I went over ever groove in every pulley with sand paper and a wire brush.It is very tedious and I was surprised how much dirt was in there.
#7
Trending Topics
#9
#10
Originally Posted by onemore94dak;[url=tel:3572192
3572192[/url]]It has not squeaked since. That is many years ago. I think back when Ralph posted bragging on the Continental belts I think it was.