Truck wont start

[emolas]

I have a 99 7.3 PSD. Truck wouldn't start, I took it to the dealership thinking CPS again. dealership said it was sending low voltage codes, they got it started and I replaced a battery. The next day truck wouldn't start again. Service mgr gave me a new CPS, I installed it and still wont start. Any help would be great and thanks in advance. BTW batteries are fully charged.

[bigbad4x4]

If you do a search look for my threads here and the ones in 911, that is what I went thru, LOTS of troubleshooting, I would first ck and see if you you have a fuel issue, replace the fuel filter, if thats good then ck to see if you have oil in the HPOP res.

[emolas]

The fuel filter was replaced a month ago. I check to see if it is getting fuel and it is. Sorry for my ignorance what is the HPOP?

[emolas]

any help?

[bigbad4x4]

HPOP = High Pressure Oil Pump = The Resivoir is under that plastic cover that says POWERSTROKE, remove that cover theres going to be a small allenheaded plug on top the res, remove that plug and ck and see if theres any oil in there. It should be 1" to 1.5" from the top of that res.. Let me know what ya got after you ck that..

[emolas]

checked the HPOP and seems to be fine, oil is about 1" down. went ahead and changed the fuel filter just in case, no start. I am not seeing any smoke when its turning over.

[donald lorbeske]

check the glow plug relay do you get a wait to start light

[emolas]

yes the wait to start comes on as normal.

[emolas]

Even if the wait to start light comes on can it still be the glow plug relay. The reason I ask is that I dont see anything coming out of the exhaust when its cranking. Any thoughts.

[emolas]

Anyone?