Compression Ignition Addict
Join Date: Jan 2009
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components of glow plug system
Howdy, I'm curious if someone can help me continue to track down my glow plug problem. Since I've owned this truck (4 yrs now), it fries 4-6 plugs / year. I have replaced the controller twice, the valve cover wiring harnesses, and now the external harness plugs (what plugs into the wiring harness).
Not sure if it's related, but I also have an intermittent low voltage issue. I suspect that the plugs may be getting stuck on, thus lowering available voltage and burning the plugs out.
Assuming the controller is working properly, what tells the plugs to cycle on / stay on? is there something that might be causing the system to stick on and burn the plugs out?
FWIW, I use motorcraft plugs, so no autolite issues here.
'96 F-250, 230k
Custom SVO Conversion (check valves)
On board filtration
80k SVO miles and counting!