2003 Ford Expedition, No Run, No Fuel Pump Operation, Code P0231

This 2003 Ford Expedition came in with a no run condition. A quick check found no fuel pressure and a code P0231 (low voltage on fuel pump monitor circuit). I decided to go to the interior fuse box, where my wiring diagrams, stated the fuel pump relay and fuse are located. There are a couple … Continue reading “2003 Ford Expedition, No Run, No Fuel Pump Operation, Code P0231”

1999 Ford F150, P0306 Misfire Cylinder #6

This 1999 Ford F150 Came in with a misfire on cylinder number 6. No big deal except that the spark plugs, spark plug wires and coil assembly have already been changed with quality parts. The other thing I noticed was that the misfire did not come in until the engine speed reached about 1500 RPMs. … Continue reading “1999 Ford F150, P0306 Misfire Cylinder #6”

2004 Ford Expedition, P0305 Misfire Cylinder #5

This 2004 Ford Expedition came in with a code P0305, misfire cylinder #5. The customer already had the spark plugs changed out a few days ago, but his misfire was back. Time to get to cylinder #5 coil. I removed the two bolts that held the engine cover in place. After the top engine cover … Continue reading “2004 Ford Expedition, P0305 Misfire Cylinder #5”

1997 F150, Changing The GEM Module, Window & Wipers Inop

This 1997 Ford F150 needs the GEM module changed due to multiple conditions. To see testing that lead to this repair please click here. The GEM module is located at the rear of the interior fuse box. The first step is to remove the trim panel that covers the gap between the upper side of … Continue reading “1997 F150, Changing The GEM Module, Window & Wipers Inop”

1997 Ford F150, Power Windows Inop

This 1997 Ford F150 came in with three complaints. The power windows do not work. The wipers do not work and the interior lights do not work. Figuring that they were all related I decided to test the easiest system to access, the power windows. I pulled the driver’s side power window switch assembly up … Continue reading “1997 Ford F150, Power Windows Inop”

2005 Ford F150, Rear Park Lights Inop

This 2005 Ford F150 Pickup came in with the complaint that the rear park lights or tail lights were not working but the front ones were. I figured simple enough probably a blown fuse from towing a trailer with a short. Well I figured wrong. After checking thoroughly I found that the lights would flicker … Continue reading “2005 Ford F150, Rear Park Lights Inop”

1999 Ford F150, P0455, Gross Evap Leak

This 1999 Ford F150 came in with the SES light on and a code P0455 stored for a gross evap leak. I checked the obvious things like a loose or missing gas cap, okay. I also inspected the evap hoses and found no problems. I did a little bit of reading and found that I … Continue reading “1999 Ford F150, P0455, Gross Evap Leak”

2002 Ford F250, No Trailer Turn Signals

This 2002 Ford F250 came in with the complaint that the turn signals did not work at the trailer pigtail connector. The turns signals on the truck worked okay. Well after examining a wiring diagram I found that fuse number 6 in the interior fuse box supplies power to the right and left, trailer tow … Continue reading “2002 Ford F250, No Trailer Turn Signals”

2003 Ford Expedition, Charge Light On, P0620

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”

1995 F150 , High Idle – Code 121

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”