Another 7.3 no start..

littleredstroker · May 5, 2014

So trucks been sitting for about a month, went to start it yesterday and I could tell after just a few seconds of cranking it something wasn't right.. sure enough.. oil issue. with key on, scan gauge reads 14% and 65,XXX psi....Ive seen that number one other time when my IPR took a dive. Replaced with new IPR ( maybe 100 miles on it) and it fixed it. This time I yanked the IPR, pulled it apart, cleaned it up and it didn't change a thing. Pig tail looks good, wires are tight and nothing bare. no difference with ICP unplugged. DC goes to 90% within a few seconds of cranking. HPOP is a adrenaline with maybe 20k miles on it with zero issues.

rascal · May 5, 2014

No codes?

Sub'd

Arisley · May 5, 2014

Just for giggles, check the oil in the HPOP reservoir.

littleredstroker · May 5, 2014

Rez is full, zero codes.. Im kinda scratching my head on this one..

littleredstroker · May 5, 2014

is it possible that the solenoid? or magnet, whatever controls the ipr itself is bad? not sure exactly how the IPR works, if its closed until the magnet/solenoid opens it, or the other way around

ghohouston · May 5, 2014

It can go bad. Did you swap it when you swapped the ipr?

lincolnlocker · May 5, 2014

Im guessing tin nut is tight then if you checked the solenoid?...

live life full throttle

Magnum PD · May 5, 2014

Tach moving?

02BigD · May 5, 2014

Tach doesn't move on a lot of the latter 7.3's when cranking. Doesn't on mine.

I've got 3 or 4 extra solenoids in the shop if you need one.

lincolnlocker · May 5, 2014

02BigD said:
Tach doesn't move on a lot of the latter 7.3's when cranking. Doesn't on mine.

I've got 3 or 4 extra solenoids in the shop if you need one.

Tach wont move on a truck that starts right up lol

live life full throttle

TyCorr · May 5, 2014

Have another pump?

littleredstroker · May 5, 2014

TyCorr said:
Have another pump?

Don't tell me this...

I do.

I also have a bunch of used iprs, I guess I will swap solenoids first and see if that does it. It was a Napa ipr, i needed it in a pinch....so I guess that could be .

If it was the pump itself I would have hoped to have had a little more warning than this.

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ghohouston · May 5, 2014

Napa ipr, I understand being in a pinch, but I'd definitely swap it out with an oem before I swapped hpops. Of course try swapping the solenoid first

TyCorr · May 6, 2014

Yea if you have a mickey mouse ipr in, fix that first.

lincolnlocker · May 6, 2014

What they said^^^

live life full throttle

Jomax · May 6, 2014

Long shot, but both UVCH pigtails plugged in tight?

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Lassie · May 6, 2014

littleredstroker said:
So trucks been sitting for about a month, went to start it yesterday and I could tell after just a few seconds of cranking it something wasn't right.. sure enough.. oil issue. with key on, scan gauge reads 14% and 65,XXX psi....Ive seen that number one other time when my IPR took a dive. Replaced with new IPR ( maybe 100 miles on it) and it fixed it. This time I yanked the IPR, pulled it apart, cleaned it up and it didn't change a thing. Pig tail looks good, wires are tight and nothing bare. no difference with ICP unplugged. DC goes to 90% within a few seconds of cranking. HPOP is a adrenaline with maybe 20k miles on it with zero issues.

65,000 at 14% DC? Is that a scan gauge thing? ICP harness may need a look if not.