Join Date: Aug 2002
Location: near Cleveland, Ohio
Feedback Score: 0 reviews
Re: Glow Plug Controller Clicking on and Off, Not heating glow plugs.
Like Ray said, with just one bad GP the controller will cycle shorter. Each additional bad plug makes the cycle even shorter to where the GP's won't heat up at all.
All my 7.3's have had a manual control wired in so that you can still start the motor if the controller is acting up.
You run a wire from the small terminal on the passenger side (this has a white wire on it), through a pushbutton switch, and to any good ground. Now any time you push the button the GP relay closes. There is no need to unhook the existing white wire unless you want to completely disable automatic operation.
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