started my car to go to work and the brake light came on and the peddle is so stiff u cant even push it down .... they worked fin the night before. there used to be a humming noise after i let off the brake that had developed but nothing ever seemed to be wrong. any ideas of what would be wrong?
break light on
- Thread starter Shwab
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checked it and its good ... that was the first thing i checked but i dont no much else about this breaking system, looks diff compared to the normal big booster im used to on the firewall
So, your booster motor doesn't run at all now? It should run every now and then after braking to recharge the accumulator, which is your power assist (the black ball in the photo). You can test the brake pressure switch by using an ohmmeter. Test to make sure all terminals have continuity to one another. If your switch is black, it is the old style that was replaced with a newer gray model as shown.
So, your booster motor doesn't run at all now? It should run every now and then to recharge the accumulator. You can test the brake pressure switch by using an ohmmeter. Test to make sure all terminals have continuity to one another. If your switch is black, it is the old style that was replaced with a newer gray model as shown.
is the booster motor the cylinder thing on the bottom? and mine has a gray switch
Yep. The switch tells it to turn on and charge the accumulator when the pressure gets below a certain point. If the fuse was blown and keeps blowing, it usually means the motor is shorted by brake fluid leaking on it. Since your motor isn't running at all, it could be the switch or the motor itself could be dead.
does the fuse say power brake or something like that on the fuse block under the dash?... mines kinda hard to read the lettering is faded
Lower right. PWR BRK
yeah it wasnt blown but i even put a new one to make sure it wasnt bad ... no luck tho
Wet with brake fluid?
yep
Replace the switch. May not be the reason the pump isn't running but it is leaking
is there a special name for it? i went to the local parts store but they didnt know what it was called either, or do i have to get it from a dealer? would you happen to know what it cost?
hey thanks! ... is there anything i need to know when changing it or just unscrew it?
