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”
This 1999 Ford Expedition came in with the complaint that the interior and running board light stay on. I checked data in the gem module with my scan tool and found that even with the door closed. I tried spraying the latch with a cleaner/lubricant but it did not fix it in this case. Cleaning … Continue reading “1999 Ford Expedition Dome, Courtesy and Running Board Lights Stay On”
After looking at diagrams I found that this Expedition uses vacuum controls to change door positions. I started looking for vacuum line problems under the hood and found the problem behind the battery. You can see the damaged section of the small plastic vacuum line, just slightly lower than center of the following picture. It … Continue reading “1998 Ford Expedition, No Air From Vents, Air Only Flows From Defrost”