1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Strange noise at idle just started and idle is not steady

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Old 09-21-07, 09:52 AM
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Strange noise at idle just started and idle is not steady

my 85 GS is having a fit, she keeps moaning (seriously) its like a really strange hollow metal on metal sound and just started getting anxious when idling...just kinda jumps from 400 to 2,000 rpm...anyone know what's wrong with my baby?
Old 09-21-07, 10:41 AM
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Huh... I have never hear of that. Is the hollow sound coming from your frame or the actual engine block? Maybe try a compresion test first to see if you have any blown seals and then work from there?
Old 09-21-07, 11:05 AM
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i think its coming from the block but compression is fine
Old 09-21-07, 11:06 AM
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I bet its the shutter valve that just went to ****!!! Any experts want to chime in?
Old 09-21-07, 11:07 AM
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1200 gone......but......

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^^^^^ I'd check the shutter valve like he just said.
Old 09-21-07, 11:27 AM
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I'm really getting tired of thread titles like "Help", eTc...

Learn to state what the problem is with the car. :-)

Sounds like shutter valve also to me.
Do a search with the terms shutter valve to see what the total symptons are and if it matches what is going on with your car.

Last edited by Rx-7Doctor; 09-21-07 at 12:10 PM.
Old 09-21-07, 12:03 PM
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Way to keep things cleaned up Doc!
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