2002 Ford F250 Diesel Glow plug control - 2002 Ford F250 Super Duty SuperCab

SOURCE: 1995 ford 7.3 litre diesel glow plugs

the best way i have found to test glow plugs is to disconnect the wire to the plug and get you 12volt test light and put your negitive lead of the test light on the positive battery cable so when you touch the test light to any ground the light will light. so now go check your glow plugs and if you have one that doesnt light the light its burned out.
good luck

SOURCE: 87 Ford F250 turns over but wont start

Fuel cut off switch or inertia swith on passenger side kicker panel, it might have got accidently kicked while getting out.

SOURCE: f250 Diesel will not start cold . Has power to

Hello philkatkiele: My name is Roger and I will help you. First thing you need to check is the glow plugs. They will need tested individually. Un plug all 8 glow plugs. Take a test light and hook end to the positive battery cable. Touch opposite end of test light to the terminal end of the glow plug. The test light should light. Touch all 8 glow plugs. Ant that do not light are bad and will need replaced. If glow plugs are burnt out then the controller will flash wait light to early or very fast. The wait light should be on for approximately 10 seconds.If al glow plugs check ok then I would suspect the glow plug controller as the problem. Also if the temperature out side is below 40 degrees the truck should be plugged in. This will help to make the engine start easier. Should you need further help please just ask.Please rate the answer as this way I know it was helpful. Thank You for using Fix Ya. Roger

Testimonial: "Thank you, Glow plugs are new. It helps to have a second oppinion"

SOURCE: 2005 ford f250 FX4 6.0L diesel. Hard to start all

2005 F250 6.0L hard to start

SOURCE: Need the glow plug/controller wiring

HERE IS THE DIAGRAM