My original symptom was that while braking at slower speeds the brake pedal will go all the way down without having additional braking. My first replacement was the master cylinder. The result: Same problem,since it was a rebuilt unit , I purchased a new master cylinder and had the system bled at the mechanic's shop. Still the problem persisted, next was the replacement of both front calipers. Still the same issue. Soft brake pedal in lower RPM's.
I have checked the brake booster according to the FSM. Engine off -the pedal holds for three pumps- start the engine and the pedal perks back up.
I am at a lost.
1991 V6 4x4 fresh engine 6000 miles
- the Internet - the mother-ship of people who don't know much and aren't afraid to go public
LSPV replacement was the fix
Linear Mode
