My problem is when cold no fuel pre heat,no no intake heater but glow plugs cycle.If I plug in block heater starts ok cold always.Dont plug in no start!Help could it be the IDM modual not comunicating with pcm?

 

First of all welcome to FTE.

Just so you know you have posted in the 1997 - 2003 F150 section of the forums.

1968 - Present Full Size Vans - Ford Truck Enthusiasts Forums

The above link will take you to the section dedicated to your model generation of E350, ask your question there and they should be able to help you faster and easier there.

Again welcome.

 

Come and join us on the '99-'03 7.3 PowerStroke Diesel forum!! Just because your 7.3 is in an "E" seires makes no difference!! LOTS of very knoledgeable folks there!!

 

You probably need a new Glow Plug relay.....or maybe you need glow plugs.... I wold check the relay first....

 

So not the glow plug solinoid?Relay located at lf fender?

 

What you call a " solenoid" is refered to by everyone as a relay....the one on the fender is the Starter relay...the Glow Plug relay ( They are COMPLETELY different but look the same ) should be beside the Filterbowl assembly, mounted on on the Passenger side Valve Cover..... at least on my Van it is ....