Power Brake problem
Thread Starter
Banned Scam/Spammer
Joined: Jun 2006
Posts: 364
Likes: 3
From: Monroe Washington
Power Brake problem
Today I think something in my power brakes has gone out. The symptoms are brake light on information panel comes on when I push on the brakes, the brake pedal goes all the way to the firewall. Brakes still work but I seem to have lost the power side of it. Is there any way to determine which component has gone bad?? The booster, the master cylinder piston?? without just replacing parts to cure the problem? My car is a 1986 coupe with ABS. Also the brake fluid res is full. There is vacume if I pull the line off the booster and check the line. Also with the brake vac line off should the motor almost die?
Race Director
Joined: Dec 2006
Posts: 10,383
Likes: 4
The symptoms are brake light on information panel comes on when I push on the brakes, the brake pedal goes all the way to the firewall. Brakes still work but I seem to have lost the power side of it. Is there any way to determine which component has gone bad?? The booster, the master cylinder piston?? without just replacing parts to cure the problem? My car is a 1986 coupe with ABS. Also the brake fluid res is full. There is vacume if I pull the line off the booster and check the line. Also with the brake vac line off should the motor almost die?
Yeah if you open up a huge vacuum leak like the line to the booster the engine will stutter.
Inspect the caliper pistons for leaks.
Thread Starter
Banned Scam/Spammer
Joined: Jun 2006
Posts: 364
Likes: 3
From: Monroe Washington
The pedal goes very easy to the firewall so I guess the booster is okay. Maybe the master cyl piston??
I don't see any fluid seeping from the calipers. Do they make a rebuild kit for master cyl's??
I don't see any fluid seeping from the calipers. Do they make a rebuild kit for master cyl's??
