Hello everyone, I am bran new to the site and in need of some help.
I own a 1990 F-250 Diesel 7.3L with an after market banks sidewinder turbo. I have owned the truck for about 5 years and has about 196,XXX miles on it well maintained and maintenance done every 3 months or so.

I have a problem with my GPR and the wire system going to the unit itself. I replaced glow plugs about 2 years ago and have always has problems starting the truck cold start. (Even after replacing glow plugs and GPR once a year or two back.)

A few days ago on my way to work about 6 am temp outside was mid 60's and I have had the truck plugged into heater all night. Driving about 20 min and came up to a stoplight, truck came to an idle and then smelled something like tar. Very strong smell and was inside the cab then smell changed to burnt rubber and then got even stronger. Light turned green all gauges normal went about another 300ft or so going uphill then suddenly truck died. Still had power just turned off. Trued to start back up and turns over didn't kick.

Had truck towed to house popped the hood and noticed wire leading to wire-harness clip near battery passenger side had burnt through. It was right at a fusible link from the ling to the clip burning wire completely and pin in the clip. Traced wire to GPR and its RED/Lightgreen stripe.

Looked online for solutions and came to the possible conclusion of too much current going to wire/ over amping. Called around and looked more online and people said that by bypassing the clip completely and installing an inline fuse seemed to do the trick.

Fusible link is 20GA we then spliced past the harness clip completely and put in a 30A blade fuse. Started the truck after about 15 sec ov turning over sounded fine then after about 15-20 sec died again and blew the NEW inline 30A blade fuse.

I'm not sure where to look next. Please help

 

This needs moved to the powerstroke forum.

I would start with a new GRP though. What GP's are you using?

 

I am using motocraft GP's and I replaced GPR last night tried to start and blew the 30 Amp fuse I installed to bypass the wire harness clip. Still blowing the fuse not sure where to look next.

 

Can you take a picture of where the bypass fuse is? Why are you trying to bypass it in the first place?

 

This would be an idi, not a psd. Sounds like you lost power to the fuel shutoff solenoid. It is on top of the injection pump, there will be two single wire connectors, it is the front one. I'm not real familiar with the circuit you have a problem with but it could be the fuel heater shorted out. It's the single wire on top of the fuel filter head, try unplugging it. It is not needed, mines been unhooked for years.

 

Oops. My bad, I saw 7.3. I forget that there was an IDI 7.3.

 

Turns out there was a short to ground found it and fixed everything. Thank you so much!!