Most probably the master cylinder to booster clearance or brake pedal to booster push rod clearance is in sufficient. This would result in the master cylinder piston being partially engaged, preventing fluid pressure from being returned. When driving the fluid heats up causing the increase in pressure and locks up the calipers.
Adjustment of pedal clearance.
Back stoplight switch out until it does not contact
Turn stoplight switch in until clearance between stoplight switch outer case and pedal arm is.02-.04" (.5-1.0 mm).
Tighten lock nut.
Friday, October 1st, 2010 AT 5:59 PM