Join Date: Aug 2002
Location: near Cleveland, Ohio
Feedback Score: 0 reviews
Re: Recurring glow plug light - 1984 - F-250 - 6.9L
It sounds like an issue with the GP controller, which screws into the back of the drivers' side cylinder head.
I'm wondering with the cool weather, if the motor is just not getting hot enough to turn the controller all the way off.
The controller threads into a coolant passage, and the hot coolant turns the controller off. It's entirely mechanical in design, no sensors etc.
1997 Ford F350 SRW 7.3L PSD
1985 Ford Ranger 2.3L 5 speed
1966 Mustang 200 I6, auto, 4 wheel disk, power brake retrofit, Corvette master.
Former vehicles, 1994 E350 7.3L IDI, 1985 International 1654 rollback, 6.9L IDI, (2) 1994 Ford E350 7.3L IDI, 1985 Ford F350 DRW 6.9L IDI, 1985 Ford F350 wrecker 6.9L IDI.
*dual ASE Master Certified, Automotive, Medium & Heavy trucks*
Owner / operator, Patriot Automotive, N Ridgeville OH