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

1985 RX7 has a loud noise coming(I believe) from rear end. HELP!

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Old 09-20-23, 04:57 AM
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1985 RX7 has a loud noise coming(I believe) from rear end. HELP!

Thanks for all your help! This car has 88,500 miles and new brakes & tires.

I live in Ontario, NY…(315)591-8517



Old 09-20-23, 07:35 AM
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Uncle Rico

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Can you describe the problem in a little more detail? Is it a whine? a clunk? Does it get louder with speed? Does it only happen on acceleration, or deceleration?
Old 09-20-23, 11:04 AM
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Sorry bout that!

It’s a growl….not tires or brakes. They’re new..if there are wheel bearings..that is actually what it sounds like.

Definitely NOT a clunk..but it’s rotational. Turning left or right doesn’t produce a change.

Stumped. Haven’t checked rear end for fluid yet. Gets louder with speed
Old 09-20-23, 11:31 AM
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Uncle Rico

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Start with diff fluid. Check the level, then drain it and check the fluid for condition. Look for metal glitter or really overcooked gear oil. Put in some fresh fluid. Check the pinion flange for any play. There should be minimal rotation in both directions for gear engagement.
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