I have recently encountered two problems with my pickup:
- Upon the vehicle warming up, when you cut it off, it will turn over but will not start up. If you let it sit for about 1 to 2 hours, it will start and run as if there was never a problem. I have replaced the fuel filter, mass air flow sensor, air filter, oxygen sensor, distributor cap, rotor, wires, and plugs. I performed a computer self diagnostic and detected no problems. I am inclined to believe the problem stems from the fuel pump but, having it occur only upon warmup and only after cutting off the pickup doesn't appear fuel pump related.
- Upon applying brakes, I physically feel the brake pedal gradually losing pressure and sinking to the car's deck. Unless I pump the brake pedal 2-3 times to build up pressure, the brake pedal will continue to sink, and I will eventually lose braking power and roll forward. I have replaced the front disc brake pads. The rear drum brake pads do not appear to be worn beyond specifications. I have generously bled all brakes. Visual inspection of all brake components has revealed no leaks. I am not losing brake fluid from the master cylinder.