1999 Ford E150 Air Only Blows Out The Defroster Vents

This 1999 Ford E150 van came in with the complaint that the a/c would only blow out of the defroster. The mode actuators in this vehicle are vacuum controlled so checking vacuum is the first point in the diagnostic routine. There is a vacuum hose splice connector under the hood on the passenger side of … Continue reading “1999 Ford E150 Air Only Blows Out The Defroster Vents”

2006 Ford Expedition Transmission Shifts Too Soon

This 2006 Ford Expedition came in with the complaint that the transmission would shift through the gears and the torque converter solenoid would lock up below 25 mph. There was a shudder present at low speed due to the condition. The problem would also go away sometimes. A transmission shop and the local Ford dealership could … Continue reading “2006 Ford Expedition Transmission Shifts Too Soon”

2002 F150, P0401 Insufficient EGR Flow

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”

1991 Ford E150 Battery Goes Dead Overnight

This 1991 Ford E150 van came in with the complaint that the battery will go dead overnight unless the customer disconnects the battery or leaves a battery charger hooked to the battery. The first thing I had to do was to check for a battery drain. There are several ways to do this and I … Continue reading “1991 Ford E150 Battery Goes Dead Overnight”