Clunk noise when turning left

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Aug 24, 2006 | 02:02 PM

bomax

Thread Starter

Racer

Joined: Nov 2004

Posts: 395

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From: TX

Clunk noise when turning left

My 2004 Z has a loud clunk clunk clunk clunk noise whenever I make a left turn and medium or low speeds. It seems to be getting worse.

What should I check for?

I'm under warranty but taking it to the dealer is a last resort option!

Aug 24, 2006 | 02:37 PM

Ikester

Race Director

Joined: Mar 2001

Posts: 11,405

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From: Whippany NJ

CI 6-7-8-9 Veteran

St. Jude Donor '08-'09

NCM Sinkhole Donor

Quote:

Originally Posted by bomax

sounds like diff chatter. (only occurs during turns) you may need diff fluid or more friction modifier additive.

I swapped mine to Amsoil Severe Gear 75w-90 and didnt need the additive. (has it mixed in already)

Last edited by Ikester; Aug 24, 2006 at 02:39 PM.

Aug 24, 2006 | 03:26 PM

bomax

Thread Starter

Racer

Joined: Nov 2004

Posts: 395

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From: TX

Is there any way to verify this short of replacing the fluid?

Aug 24, 2006 | 04:10 PM

willyfastz

Pro

Joined: Oct 2005

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From: Vanceboro NC

Is the sound coming from the front or rear, can you tell?

Aug 24, 2006 | 04:17 PM

bomax

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Racer

Joined: Nov 2004

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From: TX

Hard to tell... but it does sound like the rear.

Aug 24, 2006 | 04:27 PM

willyfastz

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From: Vanceboro NC

If so to check the fluid in the dif. look at the rear of it and you'll see a allen head plug on the right side about middle way up from the bottom of it. Screw it out and the fluid level should be level with that plug.

Aug 24, 2006 | 04:31 PM

bomax

Thread Starter

Racer

Joined: Nov 2004

Posts: 395

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From: TX

I went ahead and ordered some of the recommended Amsoil, as well as some amsoil ATF for the tranny (it is kinda notchy). Does the rear diff have a drain plug like the tranny or do I need to remove the cover?

Aug 24, 2006 | 10:04 PM

FASST LN

Drifting

Joined: Jan 2000

Posts: 1,660

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From: Charlotte, NC

The differential has a drain plug that faces the asphalt (faces straight down) and requires the same size allen wrench as the fill plug. Excellent for draining. Just did mine today.