can ticking noise be a pulley?
11-16-2007, 06:41 PM
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can ticking noise be a pulley? I have a clicking noise coming from the engine bay. When I accelerate it gets faster. I originally thought it could be a bad bearing from the water pump, but a guy I work with put a yard stick to the idle pulley(the one on the bottom) and he believes it is coming from the pulley.
I have a 99 firebird with a ls1.
I have a 99 firebird with a ls1.
11-18-2007, 03:13 PM
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turns out that it was the pully. It was the ac tensioner pulley. The bearings in the old one went bad. The pulley was actually bent and about to fall apart. With the new one on the sound is gone.
11-18-2007, 11:23 PM
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I had a guy at work come up to me once and ask me to listen to his car and tell him what this noise sounded like.
I said it's a bad lifter no doubt.
He took out a can of WD40 and sprayed it on the belt and the noise went right away. Ain't that some ****
I said it's a bad lifter no doubt.
He took out a can of WD40 and sprayed it on the belt and the noise went right away. Ain't that some ****
11-19-2007, 11:01 AM
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I think I might have a similar problem. It started with a whining sound (almost like a supercharger whine but a lot softer) and now my car has a soft clicking noise. I checked the oil and its still nice and full. How do I check if the bearings in the pulley are bad?
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11-19-2007, 06:35 PM
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the ticking in this was the bearings. With the pulley out I can freely turn the old one a lot more easily than the new one. I can also hear the bearings in it and they sound bad. It sorta sounds like rollerblade bearings when they have dirt in them. The plastic was also all chewed up.
The way you can find out if it is a pulley, or the way I did, was to use a stethyscope and put it on the part you think is bad. When you listen through the stethyscope you will hear it sounding bad. If you don't have one on you, I didn't, you can use a yard stick or some kind of metal pole. If you don't know what a bad sound is try listening to various pulleys. The one with a grinding noise is the bad one. It should sound smooth, not grinding. The sound I heard was similar to the sound of roller blade bearings with dirt in them. Also in my case I could see that it was bent when the car wasn't running. It didn't stick straight up and down, kind of leaned out.
That might be your problem Mr. Camaro. I remember I was hearing the supercharger whine for a few months as well. I figured I wouldn't investigate that and just let people think I had one
The way you can find out if it is a pulley, or the way I did, was to use a stethyscope and put it on the part you think is bad. When you listen through the stethyscope you will hear it sounding bad. If you don't have one on you, I didn't, you can use a yard stick or some kind of metal pole. If you don't know what a bad sound is try listening to various pulleys. The one with a grinding noise is the bad one. It should sound smooth, not grinding. The sound I heard was similar to the sound of roller blade bearings with dirt in them. Also in my case I could see that it was bent when the car wasn't running. It didn't stick straight up and down, kind of leaned out.
That might be your problem Mr. Camaro. I remember I was hearing the supercharger whine for a few months as well. I figured I wouldn't investigate that and just let people think I had one
Last edited by enthashyt; 11-19-2007 at 06:48 PM.
