Squeak under hood!
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From: Boynton Beach, FL
Squeak under hood! Hey guys, lurker here. Ive been having trouble with a really annoying squeak under the hood. Yes, I've done a few searches on the board and I know everyone says to check the idler pulleys. Did that. Changed the tensioner and idler on the main belt, as well as the tensioner on the AC belt. Still squeaking. I got underneath and spun the alternator pulley, it had a squeak to it and I thought it was found. But after changing the alternator the car still squeaks. I know the crank pulley shouldnt squeak, which pretty much leaves the P/S pulley and water pump. The water pump itself is not leaking but could it be the squeaking anyway? Thanks in advance.
Only leaves a couple of things man; either water pump or power steering pump. I don't think you'd get a squeak out of your a/c compressor, plus you said it still squeaked even with that belt off.
Fwiw, I had a water pump on my old Dodge truck go bad, and it never leaked once. It squealed loud as hell, I just figured it was a tensioner or something. Then I went in to look at it, and saw that my serp belt was chewed to ****. Then I grabbed the fan(motor was off), and noticed that it moved an inch back and forth in either direction.
Water pump bearings were completely gone, and the weep hole had been filled with mud and gunk, preventing it from leaking to let me know the pump was on its way out.
Fwiw, I had a water pump on my old Dodge truck go bad, and it never leaked once. It squealed loud as hell, I just figured it was a tensioner or something. Then I went in to look at it, and saw that my serp belt was chewed to ****. Then I grabbed the fan(motor was off), and noticed that it moved an inch back and forth in either direction.
Water pump bearings were completely gone, and the weep hole had been filled with mud and gunk, preventing it from leaking to let me know the pump was on its way out. Thread Starter
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From: Boynton Beach, FL
Originally Posted by staringback05
are you exactly sure its coming from the pulleys?.....if so...i might lean towards the PS pump actually, they actually love to have a little chirp everynow and then....i just replaced mine
It is kinda a chirping noise. It rarely does it at idle, and when it does its very brief and quiet. It really starts at about 1500 rpms and gets louder the higher I go. As I drive the car and it gets hot, it will sometimes quiet down a little and sometimes it will take more rpms to hear it.
I tried popping the hood and revving it up by hand and as it squeaked, I sprinkled a few drops of Armorall on the main belt. It shut it up immediately. I shut it down to take a break, started it up again after it cooled a bit and the squeak was back.
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Hey i have a 98 ws6 with that same exact problem. first off I just bought the car and the guy who i got it from loved belt dressing.When i bought the car 3 weeks ago the belt squaled so bad i barly touched the gas it was that embaressing. Anyways i replaced the belt problem solved for the first 200 miles then it slowly came back the pulleys were still soaked with belt dressing and so was the new belt.So i pulled the soaked belt off cleaned all the pulleys and replaced it with a brand new 1. Well another 200miles came and so did the squeal again.Also my alternator pulley squeals a tiny bit when u turn it by hand.I dont think thats the problem however so now im going to just drive it and hope it slowly wears all out the best dressing that is.It just started again today, but its like you said a little chirp and sometimes it goes away. I did rev the motor up today as soon as I heard it and it went away for like 20 miles. So now like I said im jusst going to drive it maybe clean all the pulleys again and maybe see what happens. Sorry for the long post since i cant help you but just thought id let u know im having the same exact prob i hope you correct it as it is annoying goodluck man
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Thread Starter
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From: Boynton Beach, FL
Thanks for the responses guys. And if anyone has anymore input please throw it in. I think I may get an asp or slp crank pulley/belt set just to eliminate another pulley possibility. At this point I only have the water pump, PS, and crank pulleys left to try. After that I'll have to take her in, which I really want to avoid. I can't imagine what the dealer would charge to track something like this down. But the sound is driving me to the point of wanting to blow a hole in the block.
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Ya kep us updated on that im very curious to see what you find out I was going to do the same thing with the pulleys your talkng about. Then i decided next week to take it in somewear and atleast find the problem it drives me nuts its more embarressing than anything so ill let you know what I find out. Im waiting for the rain to stop to get the car in and start troubleshooting i have a good mechanic in my town very honest guy so im going to let him check it out.
goodluck
quad
goodluck
quad
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From: Boynton Beach, FL
Originally Posted by SilverSierra
The crank pulley has no bearings, not possible for it to squeak.
If you want to try and dump money into something that can't squeak and run into all the false knock issues that come with underdrive pulleys, have at it.
The crank pulley is an interference fit, no key way. Its not slipping. Its also possible the squeak isn't coming from your serpentine system....if you remove the belts and run the engine, is the noise still there. Have you replaced the belt yet?
The crank pulley is an interference fit, no key way. Its not slipping. Its also possible the squeak isn't coming from your serpentine system....if you remove the belts and run the engine, is the noise still there. Have you replaced the belt yet?
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From: Boynton Beach, FL
Originally Posted by SilverSierra
If you want to try and dump money into something that can't squeak and run into all the false knock issues that come with underdrive pulleys, have at it.
The crank pulley is an interference fit, no key way. Its not slipping. Its also possible the squeak isn't coming from your serpentine system....if you remove the belts and run the engine, is the noise still there. Have you replaced the belt yet?
The crank pulley is an interference fit, no key way. Its not slipping. Its also possible the squeak isn't coming from your serpentine system....if you remove the belts and run the engine, is the noise still there. Have you replaced the belt yet?
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I think mine is definetly the water pump. But why would changing a belt stop that for roughly 200 miles then slowly start up again? It sounds like its coming right from the water pump I drove it today for about 10 miles and wow its getting very loud it doesnt do it at idle when the sec u step it up a few hundred rpms it starts and only gets louder the more you rev it.So im pretty much stumped. I think this weekend ill try to get it to someone my cars almost done for the year so i was thinking about letting it go till next year but man the last few weeks will be very annoying. The only thing i cant figure out is why it started 200 miles after a new beltis it possible the belt loosend up and now is very slightly slipping i wouldent think so but i dont know??
thanks for all the help guys
goodluck with that
quad
thanks for all the help guys
goodluck with that
quad
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From: Boynton Beach, FL
Originally Posted by quadd224422
I think mine is definetly the water pump. But why would changing a belt stop that for roughly 200 miles then slowly start up again? It sounds like its coming right from the water pump I drove it today for about 10 miles and wow its getting very loud it doesnt do it at idle when the sec u step it up a few hundred rpms it starts and only gets louder the more you rev it.So im pretty much stumped. I think this weekend ill try to get it to someone my cars almost done for the year so i was thinking about letting it go till next year but man the last few weeks will be very annoying. The only thing i cant figure out is why it started 200 miles after a new beltis it possible the belt loosend up and now is very slightly slipping i wouldent think so but i dont know??
thanks for all the help guys
goodluck with that
quad
thanks for all the help guys
goodluck with that
quad
So without either belt, although I havent driven it, its slient. And with either one belt or the other it squeaks. On a side note, when I only had the AC belt on, I tried turing on the AC. The squeak quieted for just a sec and then came right back.
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Hey wu8 just wondering if you solved the problem or not? Im taking my car in tomorrow to get it fixed i cant even begin to guess anymore without swapping all kinds of pulleys so before I go and do that im going to let a guy in my town look at he has a good reputation so we'll see what happens ill let you know what we find out here hopfully nothing serious goodluck man
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From: Boynton Beach, FL
Originally Posted by quadd224422
Hey wu8 just wondering if you solved the problem or not? Im taking my car in tomorrow to get it fixed i cant even begin to guess anymore without swapping all kinds of pulleys so before I go and do that im going to let a guy in my town look at he has a good reputation so we'll see what happens ill let you know what we find out here hopfully nothing serious goodluck man
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He also had another suggestion, which turned out not to be it, but it was something simple to check. There's a piece of vacuum line in front of the intake manifold that can get soft and crack. When it cracks it will suck in air and sound similar to a belt problem. I can get a pic of it for you later if you want (I'm at work now). Please let me know if you find anything when you take it in. Mine will probably go in when I can make it to and from the dealership.
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Ya i thought myne might be a water pump also, but after i cleaned all the pulleys and replaced the main belt it came back after 200miles so thats what im stumped at I have an appointment tomorrow morning to take the car in and hopfully it will be an easy prob for them but who knows so ill let you know. I also pulled off my a/c belt and it still made the noise so its not that so hopfully it can be easily diagnosed without costing an arm and a leg so ill let you know what i find out tomorrow.also lastnight I pulled the belt off again and cleaned everything and it made the noise way worse so it might be a loose pulley but they all seem tight so I cant guess anymore ill keep you updated goodluck
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Well I took the car in this morning it has to go back tomorrow but their was a service bulliton about my year 97-9 ls1s the idler pulleys dustshield is bad and causes a bearing to slowly wear out. Even though that doesnt explain why after Ii changed the main belt the noise stopped for 200 miles he couldent answer that either so im skeptical so the part will be in tomrrow morning or late tonight so it was 85bucks so ill see what happens and ill let you know tomrrow if it works or not im out of options now so I think this might be the prob i hope so anyways goodluck
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