oldbrown

This old girl may be too old for some of you sleek, fast types, but if you have any ideas I'd appreciate the feedback.

I am the 2nd owner of a 1985 sedan. The vehicle has been serviced regularly and I have had no problems with her until this past weekend on the interstate.
After running about 150 miles at 75mph I noticed a roaring noise begin in the rear. I pulled off at the 1st exit and rolled down the rear windows to hear clank, clank, clank....and as I slowed the clanking decreased with each rotation.
Pulling away from my stop I noticed that the noise was completely gone. I pulled into a bay and lifted the car to look for an obvious sign of damage, nothing.
Put her back on the road and in about 100 miles or so the same roar and then clanking as I pulled off. I found as I came to a complete stop and started again the noise was gone and the vehicle ran fine for another 100 or so miles. Each time the roar would start I would pull over to a complete stop and once moving the noise would be gone.

Anyone have any ideas on this situation?

Holson

Check out your parking brakes. My parking brake springs inside the drums snapped (due to rust) and made the same noise every once in a while...

Also make sure your rear wheel bearings are in good shape but they make more of a groaning noise...

Check the rear axle joints too, are the rubber boots good or are they torn up?

hhmm that's all I could think of right now...

good luck,

oldbrown

Thanks for helping me out here. I did look at the boots and they appear solid. Next I will look into the parking brake, that's good advice.
Thanks again.