cobrachuck

Just got this 75 coupe running it was sitting for the last 19 years. Chirping stops when brakes applied. I did rebuild parking brake & replaced calipers. Will try to run on rack tomorrow when new exhaust is being installed.
Wheel or tire are DO NOT touching trail arm or e bake. I was thinking wheel bearing or u joint but is stops when step on brake pedal.

wombvette

There is run out in the rotor and the pads are sliding in and out on the retaining pin. Chirps like a bird.

cobrachuck

Thanks will look at it today let you know

Mooser

If it happens when going slow, have someone walk beside the car and see if it's 1 chirp for one revolution or 1 for every 1/2 revolution
Can help point to runout (as said about) bearing type issues or u-joint type issues
M

Dodosmike

I had the same issue on my 78 after new t/a's were installed. Ended up being the parking brake adjustment was loose. Rubbing on the inside of the rotor.

Dodosmike

cobrachuck

Thanks for the replies.
You guys are the BEST !
We did find the parking brake very loose, adjusted it seemed to help, only drove a few miles home
Mooser I was working in Toronto the week

greyghost79

I had this problem on my 79. This seems to be a common problem. Usually people find that the brake pad is slipping back and forth on the rotor when driving slow. you can get "shims" that will help, at least for a while. I found that adjusting camber to near 0 helped a lot. bleed brakes to be sure no air in brake lines. finally, re-surfacing rotators and maybe changing to a different brake pad will help... which is what finally worked for me



http://www.hawkperformance.com/perfo...pads/hb126f505

cobrachuck

Thanks all,
OK
We found the rotor sticking out @ bottom adjusted the parking brake tighter much quieter
now but going to double check the the hold down springs & revisit the adjustment .