Birds under the hood?
#1
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Birds under the hood?
LOL. Now that I have your attention,
I have a strange sound coming from under the hood of my 95' LT1 Camaro. It's a loud chirping sound that is rpm consistent.
I changed the belt.
I also swapped the belt tensioner from my LT1 Trans Am and the sound WENT AWAY. For a few days. Now its back.
I can't imagine the tensioner is the problem.
When I try to probe the engine compartment listening for the source of the noise, it seems like it's definately not the alternator or the water pump.
Sounds most like its coming from the A/C compressor or the Power Steering pump, from the topside of the engine, the sound is far quieter than underneath. Somehow, I would think that a self-lubricated A/C compressor would have a bearing failure before a power steering pump with a reservoir of lubricant on one side. Maybe that has no effect, who knows.
Anyone ever had either a Power Steering pump failure or A/C compressor noise like this?
The car is mostly stock with 127k on it. It was BONE stock when I got it, and the only engine mods are a hollow cat and a cat back.
I just don't want to throw money in the wrong place. Figured I'd start here.
I have a strange sound coming from under the hood of my 95' LT1 Camaro. It's a loud chirping sound that is rpm consistent.
I changed the belt.
I also swapped the belt tensioner from my LT1 Trans Am and the sound WENT AWAY. For a few days. Now its back.
I can't imagine the tensioner is the problem.
When I try to probe the engine compartment listening for the source of the noise, it seems like it's definately not the alternator or the water pump.
Sounds most like its coming from the A/C compressor or the Power Steering pump, from the topside of the engine, the sound is far quieter than underneath. Somehow, I would think that a self-lubricated A/C compressor would have a bearing failure before a power steering pump with a reservoir of lubricant on one side. Maybe that has no effect, who knows.
Anyone ever had either a Power Steering pump failure or A/C compressor noise like this?
The car is mostly stock with 127k on it. It was BONE stock when I got it, and the only engine mods are a hollow cat and a cat back.
I just don't want to throw money in the wrong place. Figured I'd start here.
#3
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Are you for sure positive the sound is coming from a belt driven accessory? Not sure if you've taken the belt off and started the engine to see if the sound goes away? If so, do that. If the sound remains then it could be a lack of oiling between pushrod and guideplate if so equipped.
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try spraying belt lube on specific parts along the belt and pulleys one by one and try to single out which one is causing the noise.. on my old land cruiser it turned out to be alternator bearing. GL
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Are you for sure positive the sound is coming from a belt driven accessory? Not sure if you've taken the belt off and started the engine to see if the sound goes away? If so, do that. If the sound remains then it could be a lack of oiling between pushrod and guideplate if so equipped.
Does the LT1 have guideplates stock? I thought it doesn't.
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I tried that, but its hard to hand spin something as fast as the motor does.
Also, if it were the alternator I think I'd be able to hear it when I put my head right next to it.
I guess I can try swapping it with my Trans Am to verify that's the problem.
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