Join Date: Jul 2008
Location: Orangevale, CA
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Could be the GPR (Glow plug relay). Have you ever watched the dome light when you turn on the key to get the WTS?
On mine, (easier to tell when it's dark outside) the dome light is on with the door open. When I turn on the key, the dome light dims. Since the GPs only stay on for a given time (longer than the WTS), I've let them time-out just to see what happens. When they turn off, the dome light brightens. It might be a way to tell if your GPs are actually turning on.
The downside is I haven't had a problem with my GPs and since I am work right now, I can't look it up in my manual. So....as of right now, I can't tell you where the GPR is. Hopefully, someone can jump in to tell you.
Owner / Operator:
2001 F350 | 7.3L PSD | 4R100 | Crew Cab | Long Bed | 4x4 - 222
,000 miles - 10 Years of ownership
Autometer Z-series Gauges | K&N GenII FIPK | MBRP 4" TB Exhaust | Hypertech PP3 | Toyo OC ATII (LT285/75R16 "E
") | SilverStar 9007/9145 | Dura-Flap Mud Flaps
DD | 5er Puller
Pilgrim International 31RE3SLF5
- IC2 - '76-'80