When I drive and I brake, my brake goes in all the way. Meaning it doesnt stop at a certain point. So I always have to let go of it and step it again to make it brake better again. I have a 92 eg si converterd with 98 gsr disc converison so if you know or ever been through this problem please help! Thanks!
My brakes might cause me to have an accident! SO HELP!
- Thread starter reg_lus
- Start date
L.D.Forget
New Member
did you put the larger brake booster?
sounds like improper bleeding or a booster problem.
stateofjustin
New Member
Clutch and brake hydraulic systems are separate. Did you bleed the Master cylinder first before you bled the lines?
Have you checked and verified operation of the brake vacuum check valve? You should be able to diagnose this problem without driving so... STOP DRIVING THE CAR. That's kind of important. Agree w/12.8:1 and HX, sounds like bad vacuum or booster with a bad diaphragm, it could be air in the system too, but it's difficult to build much more pressure with multiple pumps if you have that much air in your lines or MC. Check under the brake booster both under the hood and under the dash board and look for brake fluid leaking out. Under the dash it will be dripping down the firewall, also hand press the brake pedal and listen for excessive air noise. Run the car parked with the e-brake on (out of gear obviously) foot OFF the brake, let it run 30 seconds and shut off. THEN depress the brakes all the way to the floor once, then lift off all the way, then do it again, lift off, and one more time. You should get 3 pumps before you can barely move the pedal. First will be close to full stroke (might be full stroke in your case, next should be 1/3rd less and the next pump the last third. If that doesn't happen, you are not getting vacuum to the booster as it hasn't stored any (it was designed to for emergencies). Could also be a leak pulling air into the booster removing the vacuum/negative pressure condition. Either way, for safety purposes, if you are not a wrench I do not recommend repairing it yourself (if you end up needing to replace the booster and MC). Stopping is too important. The most important.
Have you checked and verified operation of the brake vacuum check valve? You should be able to diagnose this problem without driving so... STOP DRIVING THE CAR. That's kind of important. Agree w/12.8:1 and HX, sounds like bad vacuum or booster with a bad diaphragm, it could be air in the system too, but it's difficult to build much more pressure with multiple pumps if you have that much air in your lines or MC. Check under the brake booster both under the hood and under the dash board and look for brake fluid leaking out. Under the dash it will be dripping down the firewall, also hand press the brake pedal and listen for excessive air noise. Run the car parked with the e-brake on (out of gear obviously) foot OFF the brake, let it run 30 seconds and shut off. THEN depress the brakes all the way to the floor once, then lift off all the way, then do it again, lift off, and one more time. You should get 3 pumps before you can barely move the pedal. First will be close to full stroke (might be full stroke in your case, next should be 1/3rd less and the next pump the last third. If that doesn't happen, you are not getting vacuum to the booster as it hasn't stored any (it was designed to for emergencies). Could also be a leak pulling air into the booster removing the vacuum/negative pressure condition. Either way, for safety purposes, if you are not a wrench I do not recommend repairing it yourself (if you end up needing to replace the booster and MC). Stopping is too important. The most important.