4.6L, 136,000 miles. Drove one hundred miles, city and highway. Once, after starting the car after it sat in a parking lot for thirty minutes, it would not idle, stumbling and stalling. Had to rev engine, maybe half throttle, to get it to move. After it got going, it ran fine the rest of the day. The next day, it cranks but will not start, does not even try to fire. Scan tool passes; no codes. Half of tank of gas, fuel pressure is 37 psi at the schrader valve on the fuel rail. Inductive timing light shows no spark at plugs. PCM relay is okay; swapped it with the blower motor relay to test it. Fuses to the PCM are okay. PCM supply voltage (B+) and reference voltage (5 volts) is okay; checked at the PCM wiring harness.
have the same problem?
Thursday, November 11th, 2010 AT 6:15 AM