**** WERIDDD sound from my ls1!!!

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May 5, 2007 | 02:35 AM

AlexVette505

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Staging Lane

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From: N/A

**** WERIDDD sound from my ls1!!!

my car is a 2000 z 28 m6 convert with about 40,000 miles. The car is in great shape and when i got it with 28,000 miles it was rarly driven. Every now and then when i start the car the motor makes a very strange "flying saucer" noise ( from what friends say). As soon as i rev the engine just a bit the noise goes away still then comes back when its at idle. It does not sound like a belt and its not a cracking noise. it has only done this a few times but its really strange lol. What do u guys think? i am CLUELESS haha

May 5, 2007 | 03:53 AM

LS1_TA_2002

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I have a similar noise. From reading other posts I belive it to be one of the idler pulleys. I've replaced the tensioner and now I will be replacing the idler pulley down near the alternator. Good luck.

May 5, 2007 | 12:46 PM

AlexVette505

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so should i just replace all my belts? are u still having the problem? thanks

May 5, 2007 | 12:50 PM

taintedmeat

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From: ATX

What's a flying saucer noise?

May 5, 2007 | 02:50 PM

Y2KFirehawk

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From: Saucon Valley, PA

I think I've replaced my upper idler pulley at least 2 times since I've had my 'hawk... it seems they last like 1.5 years.... are the lower A/C idler pulley's the same part?

Last edited by Y2KFirehawk; May 5, 2007 at 03:01 PM.

May 5, 2007 | 02:56 PM

98 Speed Trap

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Not sure if it applies to 00, but my 98 has an Idle Air Contoller motor that that sounds like a whirring servo motor when it moves. But, it'd not constant, it comes and goes while at idle.

May 5, 2007 | 06:47 PM

AlexVette505

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Staging Lane

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From: N/A

yeah mine only does it like once every two months or so. If the car has been sitting in the heat for a while it will do it. Should i replace all the belts?

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May 7, 2007 | 11:40 AM

FLA02TA

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From: Sarasota, FL

Mine does it too. I can hear it coming from the engine bay and out of the exhaust. I've been told it might be a clogged AIR pump or something like that. Let me know if you find out what causes it.