Glow plug relay?
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Junior User
Joined: May 2004
Posts: 64
Likes: 0
From: jacksonville nc,
Glow plug relay?
I have a 1993 f250 7.3 NA. When i first crank my truck up it fires right off but, if i drive it and let it set for 20 min. or so and i go to start it up again all the engine does is turn over but won't start. I noticed that the "wait to start" light only stays on for about 2 seconds. I have to turn to key on and off about 6 times and then it will start. Could this be the glow plug relay gone bad. Any ideas.
Lead Driver
Joined: Jan 2005
Posts: 7,782
Likes: 221
From: Huntington Indiana
If when cold and it starts right up. Then you don't have an air problem. What you have is a fuel injection pump probably on its last legs. If it was air getting into system. Overnight you would have a lot of air getting into system, then lots of cranking while cold or hot. If it fires right off cold. Then you shut down hot then wait 10 minutes ,then it won't start there is the problem - IP.
