View Full Version : still having brake problems

09-03-2004, 12:04 AM
my 90 sc's brake and anti lock light were staying on and the brakes were really hard to push. So i put a brake accumulator on it and it fixed it for a day. Then it started doing it again. I checked the 4 pin plug and didn't get a reading. So should i try the pressure switch it has a new relay already. Also if i don't drive it for a day or so they will work for awhile or until i shut the car off. Any suggestions? Thanks

09-03-2004, 02:33 AM
on mine the brushes in the pump went bad , after i fixed the pump i filled the resevor with fluid and motor would run but it woundnt pump until it sat all nite

09-03-2004, 11:15 AM
how do you know if it is the brushes? What about the 4 pin connnector not reading anything.

09-03-2004, 12:44 PM
No voltage on the 4pin with key on in run position = bad relay or pressure switch.

Also... whack the relay with the handle of a screwdriver.. seriously. With it sometimes working, thats a sign of either a sticking relay, loose wires, or dirty contacts.