97 7.3 no start

[scrawny]

Started it up this morning ran normal for about 3 minutes then died. Won't start. No WTS light. No power to the GPR . Replaced the Gpr. Still nothing. #22 Maxi-fuse is blown, replaced , blown. Unplugged fuel heater, No blown fuse. WTS light now comes on. It flickers upon turning key on then lights up normal. (this is a new thing used to light up normal) Still no start. Would a bad CPS not allow power to go to the GPR?

HELP!!!!

Thanks

 

[patrickc]

The cps shouldn't effect the glow plug relay in anyway. Is there a visible wiring damage or a short somewhere? Possibility that the fuel heater has gone bad and created a short? Melted wiring?

 

[scrawny]

I think the fuel heater has gone bad. With it unplugged it does not blow #22 fuse. Still cranks with nothing. The tach does not move at all when cranking. I can't see any visible bad wiring. I have checked the plugs and wires around the fuel filter.

 

[95_stroker]

Tach not moving while cranking is a symptom of CPS failure in the 94-97 PSD's.

 

[scrawny]

Is there anyway that the CPS could affect the WTS start light and or the glow plug relay. IT seems that they would be independent of each other. But I am not getting any power at the GPR (to the Glow pug side)

 

[scrawny]

Oops! I guess PatrickC already gave me the answer to that question. I am heading back out this morning to replace the CPS. I guess I will take it from there.

 

[95_stroker]

Is there anyway that the CPS could affect the WTS start light and or the glow plug relay. IT seems that they would be independent of each other. But I am not getting any power at the GPR (to the Glow pug side)

Then I would say that the GPR is bad also, but the two incidents are not related.

 

[scrawny]

GPR is working. Crank it with no start. Tach is not moving but has slightly come of off the peg. Replaced the CPS , still nothing. Batteries are fully charged. Cranks over fine. Seems to be getting plenty of fuel. I checked the fuel going in and coming out of the return. Where can I get a code reader and is there a certain type that I should be looking for?

Any Ideas????

Thanks

 

[95_stroker]

Do you have any white smoke while cranking? Is the CEL on? How old are your batteries?

 

[scrawny]

There is not white smoke, or any smoke for that matter. No CEL light and I think the batts are about 3 years old. I just had them tested about 1 month ago. They were ok. He did say the starter was drawing a fair amount while cranking. But within normal range. It seems to crank over fast and normal