This 2003 Ford Expedition came in with the complaint that the alternator had been replaced twice and the charge light light indicator was still coming on. The shop that had installed the alternators had called in desperation as their customer was becoming quite upset. They also stated that the light may stay out all day … Continue reading “2003 Ford Expedition, Charge Light On, P0620”
This 1995 Ford F150 pickup came in with the complaint that the idle was very high. The customer stated that the original problem was that the idle was too low and the engine would stall. His neighbor was familiar with Fords and had replaced the IAC valve and now it idles very high. They had … Continue reading “1995 F150 , High Idle – Code 121”
This 2002 Ford F150 with a 5.4 liter engine came in with the service engine soon light on and a P0401 code stored. This same general test applies to most Ford, Lincoln and Mercury vehicles with EGR valves and DPFE sensors. Wire colors may vary and you may wish to consult a wiring diagram. It … Continue reading “2002 F150, P0401 Insufficient EGR Flow”
This 2004 Ford F150 Pickup came in with the complaint that the vehicle would not accelerate. I checked codes and found a code P2100 stored for and open circuit in the throttle body motor. In order to test I had to remove the breather assembly. I removed the hold down bolts. Disconnected the sensor harness. … Continue reading “2004 Ford F150, Code P2100, Will Not Accelerate”
This 2001 Ford Expedition came in and the customer requested that the EGR valve be changed. I asked why and was told the parts store checked it and it had a code P0401 for insufficient EGR flow. I said okay, but I was willing to bet that the EGR valve was okay. The customer asked … Continue reading “2001 Ford Expedition, Testing The EGR Valve”
This 2000 Ford Expedition was towed in due to a no run condition. I checked for codes and found that I had no communication to the Powertrain Control Module or the Instrument Panel Cluster. I also noted that the odometer was displaying dashes. I decided to start checking power at the PCM relay. It is … Continue reading “2000 Ford Expedition No Run Condition”