2004 C5 Clunk.
Instructor
Joined: May 2007
Posts: 201
Likes: 0
From: Peoria Arizona
I had a really loud pop/clunk from under the car that turned out to be the axle problem described by Jet Jock. You won't feel any movement of the wheel with the axle nut on.
Take off the wheel and nut. Reach behind the brake rotor and grab the half shaft. Make sure your trans is in neutral and e-brake is off. Chock the front wheels first. The half shaft should move freely inboard to the diff and back out to the hub. You might need to tap it with a hammer to break any corrosion. Lube the spindle with spray grease from the front and behind while moving the half shaft back and forth.
I cleaned off the axle threads before retorquing to 120 ft-lbs.
I did it to both sides and it is quiet and perfect now.
Take off the wheel and nut. Reach behind the brake rotor and grab the half shaft. Make sure your trans is in neutral and e-brake is off. Chock the front wheels first. The half shaft should move freely inboard to the diff and back out to the hub. You might need to tap it with a hammer to break any corrosion. Lube the spindle with spray grease from the front and behind while moving the half shaft back and forth.
I cleaned off the axle threads before retorquing to 120 ft-lbs.
I did it to both sides and it is quiet and perfect now.
Thread Starter
Drifting
Joined: Oct 2009
Posts: 1,385
Likes: 84
From: San Diego CA.
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
I know this is going to sound weird, but have you checked the torque tube ends and tunnel plate? I had a weird clunk in another car and it ended up being the bellhousing had a crack and was slamming closed on pretty much any terrain.
And I was just thinking the tunnel plate could be loose.
And I was just thinking the tunnel plate could be loose.
Thread Starter
Drifting
Joined: Oct 2009
Posts: 1,385
Likes: 84
From: San Diego CA.
I know this is going to sound weird, but have you checked the torque tube ends and tunnel plate? I had a weird clunk in another car and it ended up being the bellhousing had a crack and was slamming closed on pretty much any terrain.
And I was just thinking the tunnel plate could be loose.
And I was just thinking the tunnel plate could be loose.
Thread Starter
Drifting
Joined: Oct 2009
Posts: 1,385
Likes: 84
From: San Diego CA.
My sway bars came with new polyurethane bushings. I checked them and lubricated them as well. Thanks.. Keep them coming please...
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Thread Starter
Drifting
Joined: Oct 2009
Posts: 1,385
Likes: 84
From: San Diego CA.
No. In fact I keep thinking that it's coming from the front right. Some of the mechanics think the rear. After I do the rear hub trick, I will pull the plastic wheel well covers off starting with the front right. Good suggestion. I wasn't sure if there was anything behind there. I did buy a service manual but it hasn't arrived yet. I assume it has pictures that will show me whats hidden where. Keep em coming.....
Thread Starter
Drifting
Joined: Oct 2009
Posts: 1,385
Likes: 84
From: San Diego CA.
Thread Starter
Drifting
Joined: Oct 2009
Posts: 1,385
Likes: 84
From: San Diego CA.
Thread Starter
Drifting
Joined: Oct 2009
Posts: 1,385
Likes: 84
From: San Diego CA.
Advanced
Joined: Feb 2007
Posts: 52
Likes: 0
From: San Jose California
I had a really loud pop/clunk from under the car that turned out to be the axle problem described by Jet Jock. You won't feel any movement of the wheel with the axle nut on.
Take off the wheel and nut. Reach behind the brake rotor and grab the half shaft. Make sure your trans is in neutral and e-brake is off. Chock the front wheels first. The half shaft should move freely inboard to the diff and back out to the hub. You might need to tap it with a hammer to break any corrosion. Lube the spindle with spray grease from the front and behind while moving the half shaft back and forth.
I cleaned off the axle threads before retorquing to 120 ft-lbs.
I did it to both sides and it is quiet and perfect now.
Take off the wheel and nut. Reach behind the brake rotor and grab the half shaft. Make sure your trans is in neutral and e-brake is off. Chock the front wheels first. The half shaft should move freely inboard to the diff and back out to the hub. You might need to tap it with a hammer to break any corrosion. Lube the spindle with spray grease from the front and behind while moving the half shaft back and forth.
I cleaned off the axle threads before retorquing to 120 ft-lbs.
I did it to both sides and it is quiet and perfect now.
I recently tightened my axle nuts and the car is much quieter now. No more clicking when taking off from a light. And I haven't heard the thunking noises on uneven surfaces anymore. (Although, they were always worse with a passenger in the car, and I haven't had a passenger since tightening the axle nuts.)
Melting Slicks
Joined: Nov 2007
Posts: 3,475
Likes: 10
From: Wake Forest NC
The targa top solved my '04 clunk.
http://forums.corvetteforum.com/c5-g...ver-bumps.html
Switched from glass top to my body-colored top and problem went away. If you don't have two tops, just remove the one you have.
s'noJob
.