starts then stops - Diesel Forum

vrinner · 07-04-2008, 07:15 PM

My '02 7.3 has 45K miles. Has ran perfectly without any problems, I've owned it since new.

I started the truck, it warmed up for about 5 minutes then just died. It would start, run for a few, then die. I let the truck sit a few days while I got a new fuel filter. Replaced filter. Primed the filter a couple of times. Turned it over, and it started and idled for a couple of minutes then died. Now I cant get it to start at all. It just turn over and over.

klhansen · 07-04-2008, 08:14 PM

Welcome to TheDieselStop

There's a couple of things you should check.

First, pull the oil dipstick and see if you have anything on the stick. If these engines are too low on oil, the High Pressure Oil Pump (HPOP) will run out of oil and the injectors won't fire.

Second, pull the plug on the top of the HPOP reservoir and see if there's oil within about 1" of the cover.

Third, check the batteries. If they're too low, the electronics won't fire the injectors.

Forth, Check the CPS.

Hope that helps.

Pocket · 07-04-2008, 11:27 PM

trucks can smlell fear, that's whiy it won't run

vrinner · 07-05-2008, 12:37 AM

Quote:

Originally Posted by klhansen

Welcome to TheDieselStop

There's a couple of things you should check.

First, pull the oil dipstick and see if you have anything on the stick. If these engines are too low on oil, the High Pressure Oil Pump (HPOP) will run out of oil and the injectors won't fire.

Second, pull the plug on the top of the HPOP reservoir and see if there's oil within about 1" of the cover.

Third, check the batteries. If they're too low, the electronics won't fire the injectors.

Forth, Check the CPS.

Hope that helps.

Thanks for the welcome! I may be hanging out here more often now that I'm starting to have issues. The truck has been flawless for the time I've owned it so I havent really had to search for help. I'm a Ford guy to the bone. My first truck was a 1957 F100, I've owned several Mustangs and still own two.

A couple of questions...

Where is the HPOP resivior? Whats the CPS? Also on your battery suggestion...interesting as the truck doesn't get ran that much and the batteries are a bit low.