Chicago SC
Registered User
What the F.......pressure switch? (abs)
I recently read Duffy Floyd's ABS system article and it was very helpful to diagnose my problem with no power brakes...However, now I'm stuck. The problem is that the Hyd. pump motor wont run when starting the car. The pump motor relay clicks when tested, and I do have power from the relay to the pump motor connector, but when the connecter is on, the pump wont run... BUT, I hotwired the pump motor by connecting a negative pin on the pump motor plug to my battery and it turned on. Now that I know the pump runs and i have power brakes, what could be stopping the pump from turning on by itself when it is hooked up? By the way, the pump also would not shut off on it's own when I hotwired it...Is it the pressure switch???????????
I recently read Duffy Floyd's ABS system article and it was very helpful to diagnose my problem with no power brakes...However, now I'm stuck. The problem is that the Hyd. pump motor wont run when starting the car. The pump motor relay clicks when tested, and I do have power from the relay to the pump motor connector, but when the connecter is on, the pump wont run... BUT, I hotwired the pump motor by connecting a negative pin on the pump motor plug to my battery and it turned on. Now that I know the pump runs and i have power brakes, what could be stopping the pump from turning on by itself when it is hooked up? By the way, the pump also would not shut off on it's own when I hotwired it...Is it the pressure switch???????????
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