Help me diagnose a problem (please)
Thread Starter
Instructor
Joined: Oct 2002
Posts: 140
Likes: 0
From: Rocky Hill CT
Help me diagnose a problem (please)
I have a 2002 Z06 with 33K miles. I am getting a clicking almost metal on metal sound coming from the rear end (at least it sounds like rear end). I only get the sound at the very beginning of accelaration and especially when I'm rolling in 1st and put it into reverse and accelerate or when I do the opposite from reverse to first.
At first I thought it was coming from the wheel but now I really think it is coming from deeper inside. Any initial thoughts?
Thanks!
At first I thought it was coming from the wheel but now I really think it is coming from deeper inside. Any initial thoughts?
Thanks!
Thread Starter
Instructor
Joined: Oct 2002
Posts: 140
Likes: 0
From: Rocky Hill CT
TTT anyone? The z06 forum suggested the sway bar could be loose but no go. Any other suggestions? It could be a wheel bearing but why only when first taking off. Plus with 33K miles I'm shocked they would go.
Originally Posted by thefritz1
I have a 2002 Z06 with 33K miles. I am getting a clicking almost metal on metal sound coming from the rear end (at least it sounds like rear end). I only get the sound at the very beginning of accelaration and especially when I'm rolling in 1st and put it into reverse and accelerate or when I do the opposite from reverse to first.
At first I thought it was coming from the wheel but now I really think it is coming from deeper inside. Any initial thoughts?
Thanks!
At first I thought it was coming from the wheel but now I really think it is coming from deeper inside. Any initial thoughts?
Thanks!
Le Mans Master
Joined: Dec 2003
Posts: 5,561
Likes: 448
From: Atlanta metro Ga.
Not an exhaust issue..
99% sure it is the infamous "loose rear axle nuts" issue.
Basically the splined axles that pass through the rear hubs have a small amount of play, and the nut loosens over time, and when you transition from loading the axle in relationship to the hub it "clicks / pops" etc.
Solution is to clean the axle threads on both sides, loosen or completely remove the axle nuts, spray some lube into the splines, re-tighten the axle nut to the proper torque and your problem is solved.
99% sure it is the infamous "loose rear axle nuts" issue.
Basically the splined axles that pass through the rear hubs have a small amount of play, and the nut loosens over time, and when you transition from loading the axle in relationship to the hub it "clicks / pops" etc.
Solution is to clean the axle threads on both sides, loosen or completely remove the axle nuts, spray some lube into the splines, re-tighten the axle nut to the proper torque and your problem is solved.
Racer
Joined: Jul 2006
Posts: 447
Likes: 0
From: San Jose Ca
Originally Posted by garypz53
explain please
I agree, Dan_The_C5_Man... Check the rear axles. Could be loose bolts, OR bad CV joint.
Thread Starter
Instructor
Joined: Oct 2002
Posts: 140
Likes: 0
From: Rocky Hill CT
Dan, I have never gotten into axles on any car. Could you (in non mechanic speak) explain to me exactly how to clean the axle threads and lube? In other words a picture would be FANTASTIC. Thanks so much!
Originally Posted by Dan_the_C5_Man
Not an exhaust issue..
99% sure it is the infamous "loose rear axle nuts" issue.
Basically the splined axles that pass through the rear hubs have a small amount of play, and the nut loosens over time, and when you transition from loading the axle in relationship to the hub it "clicks / pops" etc.
Solution is to clean the axle threads on both sides, loosen or completely remove the axle nuts, spray some lube into the splines, re-tighten the axle nut to the proper torque and your problem is solved.
99% sure it is the infamous "loose rear axle nuts" issue.
Basically the splined axles that pass through the rear hubs have a small amount of play, and the nut loosens over time, and when you transition from loading the axle in relationship to the hub it "clicks / pops" etc.
Solution is to clean the axle threads on both sides, loosen or completely remove the axle nuts, spray some lube into the splines, re-tighten the axle nut to the proper torque and your problem is solved.
Le Mans Master
Joined: Dec 2003
Posts: 5,561
Likes: 448
From: Atlanta metro Ga.
Originally Posted by thefritz1
Dan, I have never gotten into axles on any car. Could you (in non mechanic speak) explain to me exactly how to clean the axle threads and lube? In other words a picture would be FANTASTIC. Thanks so much!
Remove the center cap / wheel cover, you'll see the 33mm axle nut and threads.
Clean up the threads w/ a wire brush (they usually get a bit rusty), loosen the nut enough to shoot some white lithium grease into the spline area, re-tighten the nut (approx 120ft lbs).
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
