I have a 1996 7.3, my truck just went dead going down the road, the Wait To Start light would not come on, The next morning went out to start it and it worked and it started, a few hours lated the same old thing. Can someone help me.

 

Hard to say. Would it crank but not start? Did you lose all electrical or just the wait to start light? Don't think the glowplug controller alone can inhibit the start. Losing the cam position sensor input shut shut you down but it will let you crank the engine but won't tell the injectors to fire. All my problems on my 96 came down to the CPS going bad. It caused no starts, jerking at 56-64 miles per hour and random missing. Sometimes relays can act up after they warm up the question being which one could be shutting you down? Good luck

 

The engine will turn over but will not start, unless the wait to start is on.

 

did you check cps???

 

Check your cam sensor. The cam sensor will affect when the truck should start or shouldnt. My truck would go down the road, shut off, start back up or sometimes not even start. Replaced the cam sensor and it was good to go.

 

check your CPS thats probably the problem

 

Wait to start light shares a circuit with the fuel heater in the filter housing. I've had the fuel heater short out and blow the maxi fuse. Since yours is intermittent, maybe it is a circuit breaker. Try disconnecting the fuel heater.

 

as odd as it sounds, a cam sensor will cause a no WTS light, had it happen on my close friends '97