Bftfan
New member
SOLVED - Driveline or brakes??
Ok, I’m taking this in a different direction so I started a new thread. Thanks to everyone for your help and ideas so far, I sincerely appreciate it. Here’s the old thread, I’m getting desperate for answers:
www.toyota-4runner.org/4th-gen-t4rs/124848-stumped-new-brakes-now-odd-clunk-wheel.html
Here’s the Reader’s Digest version:
· I put all new rotors, pads and flushed the brake fluid about a week ago. Used Wearever rotors and Wearever Ceramic pads from Advance Auto parts. I bed the pads in correctly and had no problems. Ran well and stopped fine.
· A few days later, when I had the window down I noticed a slight rhythmic scraping when moving forward coming from the rear driver’s side wheel. More importantly when I would back up there was a loud, deep metallic “clunk” from the same rear driver’s wheel and I could hear it almost feel it binding up and releasing. To be clear it’s not driveline clunk from putting it in Reverse, it doesn’t start clunking until I actually start backing up. I keep the driveline pretty well lubed.
· Put the 4Runner up on a life and pulled the left, rear wheel and caliper. Ran it in reverse on the lift and didn’t notice any binding but did see the run-out on the “new” rotor was way out. Replaced the rotor under warranty and the scraping going forward was gone (it was the rotor scraping against the caliper bracket). Put the caliper & wheel back on and the loud, deep metallic “clunk” from the same rear driver’s wheel was still there when in reverse.
· I’m starting to think it’s nothing to do with the brakes on that wheel because I changed out the rotor, have absolutely no problems going forward and don’t see any scrapes, scratches or wear spots where something could be in contact with the moving rotor/wheel. I never touched the parking brake when doing the brake job and only backed it off a bit when I was experiencing this clunking problem.
· QUESTION: I’m starting to think it’s something in the driveline. Could something be screwed up in the driveline and masking itself as something else at the wheel? Maybe I beat the rotor too hard when removing it for the brake job? If I have something wrong in the diff or a bad u-joint wouldn’t I hear that going forward as well as reverse?
Ok, I’m taking this in a different direction so I started a new thread. Thanks to everyone for your help and ideas so far, I sincerely appreciate it. Here’s the old thread, I’m getting desperate for answers:
www.toyota-4runner.org/4th-gen-t4rs/124848-stumped-new-brakes-now-odd-clunk-wheel.html
Here’s the Reader’s Digest version:
· I put all new rotors, pads and flushed the brake fluid about a week ago. Used Wearever rotors and Wearever Ceramic pads from Advance Auto parts. I bed the pads in correctly and had no problems. Ran well and stopped fine.
· A few days later, when I had the window down I noticed a slight rhythmic scraping when moving forward coming from the rear driver’s side wheel. More importantly when I would back up there was a loud, deep metallic “clunk” from the same rear driver’s wheel and I could hear it almost feel it binding up and releasing. To be clear it’s not driveline clunk from putting it in Reverse, it doesn’t start clunking until I actually start backing up. I keep the driveline pretty well lubed.
· Put the 4Runner up on a life and pulled the left, rear wheel and caliper. Ran it in reverse on the lift and didn’t notice any binding but did see the run-out on the “new” rotor was way out. Replaced the rotor under warranty and the scraping going forward was gone (it was the rotor scraping against the caliper bracket). Put the caliper & wheel back on and the loud, deep metallic “clunk” from the same rear driver’s wheel was still there when in reverse.
· I’m starting to think it’s nothing to do with the brakes on that wheel because I changed out the rotor, have absolutely no problems going forward and don’t see any scrapes, scratches or wear spots where something could be in contact with the moving rotor/wheel. I never touched the parking brake when doing the brake job and only backed it off a bit when I was experiencing this clunking problem.
· QUESTION: I’m starting to think it’s something in the driveline. Could something be screwed up in the driveline and masking itself as something else at the wheel? Maybe I beat the rotor too hard when removing it for the brake job? If I have something wrong in the diff or a bad u-joint wouldn’t I hear that going forward as well as reverse?
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