Brakes ? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

Canuk · 05-11-2009, 07:48

95 Ranger 3.0 V6. 2wd . Replaced brake lines and bled the barkes twice. Have great pedal preasure until I start the truck, then loose most of the pedal. ?????? Anybody KNOW what's going on here?

**jwko** · 05-11-2009, 09:21

When you pump the brakes with the engine off, vacuum is depleted in the power brake booster causing a stiff brake pedal. Once you start the engine, vacuum is restored and the pedal becomes easier to push.

Make sure the rear brakes are adjusted out properly, this can cause low brake pedal.

Canuk · 05-11-2009, 10:34

Thank you for the advice. I will check that. I was thinking maybe it was collapsed inner linings on the front flex hoses or possibly even the master cylinder itself. Any feeback?

Canuk · 05-12-2009, 16:51

Checked the rear brakes and there adjusted fine, but still have same problem.
I'm stumped !!!!

**jwko** · 05-12-2009, 17:16

If the rears are adjusted out to where they just contact the drum, and the system is bled, I would suspect the master cylinder to be the culprit.