afojc Posted November 19, 2005 Share Posted November 19, 2005 I have a 88 GL-10 wagon giving me a hard time, the front brakes keep locking up on me, it has a hill holder but I'm not sure if that is what the problem is, I put a new master cylinder and new calipers on and can't figure what the problem may be, any help would be really appreciated, thanks in advanced. Quote Link to comment Share on other sites More sharing options...
john in KY Posted November 20, 2005 Share Posted November 20, 2005 Could be the proportioning valve if this car has rear drum brakes. Quote Link to comment Share on other sites More sharing options...
subie94 Posted November 20, 2005 Share Posted November 20, 2005 have you tried disconnecting the hill holder an seeing if they still lock up. i thought one of my 92 legacys caliper was freezing up,went and replaced it.front driversside brake was still locking up.then i disconnected the h/h and wah-lah all fixed. Quote Link to comment Share on other sites More sharing options...
nipper Posted November 20, 2005 Share Posted November 20, 2005 Inspect the front brake lines, as they may be internaly collapsed causing a higher pressure then normal. Actually just go ahead and replace them anyway, if they are OE. Check to see if you have check valves in the master cylinder. If you do remove them. It sounds as if there is residual pressure stuck in the system, which normally is not a problem for drums, but is for discs. The hill holder only works on one wheel, so i sort of agree that it was not adjusted right in the other case. nipper Quote Link to comment Share on other sites More sharing options...
archemitis Posted November 20, 2005 Share Posted November 20, 2005 i've had a hill holder cause problems. if you take the cable off and let it dangle it will fix it. Quote Link to comment Share on other sites More sharing options...
MilesFox Posted November 21, 2005 Share Posted November 21, 2005 locking up when you stop? on one side? if so sounds like air in the line. whichever tire is locking up you have air on the opposite side and diagonally from the opposite tire Quote Link to comment Share on other sites More sharing options...
afojc Posted November 21, 2005 Author Share Posted November 21, 2005 locking up when you stop? on one side? if so sounds like air in the line. whichever tire is locking up you have air on the opposite side and diagonally from the opposite tire More like while I'm going down the road, both front brakes are a little spongy when I first leave and get worse as I go, had to loosen brake line and relieve pressure just to get it to move, the brakes we're so locked!!!! Quote Link to comment Share on other sites More sharing options...
Numbchux Posted November 21, 2005 Share Posted November 21, 2005 oh....like the caliper's seized and won't clamp on the disc? I'm not sure what you mean by locked.... Quote Link to comment Share on other sites More sharing options...
idosubaru Posted November 21, 2005 Share Posted November 21, 2005 can you jack each side up and see which wheel is to blame? emergency brakes can get stuck/caught. i had a front dragging brake on my way home from work (60 miles to get home)....pulled the wheel off and eventhough the e-brake handle was all the way down the actual lever pulling it was stuck and still applying force. disengaged it and it's worked fine every since. i rebuilt the calipers and greased up the e-brake mechanism shortly after. if the brake is mushy sounds like some other kind of problem though...was it properly bled? Quote Link to comment Share on other sites More sharing options...
afojc Posted November 21, 2005 Author Share Posted November 21, 2005 oh....like the caliper's seized and won't clamp on the disc? I'm not sure what you mean by locked.... No, more like both front brakes get so locked that I can't move it until I relieve pressure by either opening bleader or line, only then can I move it, I will probably replace brake hoses, and go from there> Quote Link to comment Share on other sites More sharing options...
nipper Posted November 21, 2005 Share Posted November 21, 2005 Have you checked the brake booster yet? Next time you have to drain off fluid, first disconnect the booster and see if that is applying the bearkes. Next try to drain the fluid at the master cylinder. It is possible that you got a bad mastercylinder. nipper Quote Link to comment Share on other sites More sharing options...
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