Gets in need of some help....

Jeremyleggett07 · Oct 26, 2012

Ok long story short- truck loaded down for the weekend... Rolled into throttle to get on to entrance ramp of freeway and before I hit the ramp truck died! Couldn't get it started! Doesn't even throw a code. I checked fuel bowl and filter... It was good....

I have updated STC fitting... Batts date code 3/11... Truck turns over but no start up. Got towed to a local shop- not diesel mech but knows a bit. ICP volt was at .2v so unplugged and still no start up. After so much cranking batts died and took FOREVER to charge. Replaced billet fuel cap with OEM since it lost some from there but I think it was not completely tight from checkin on side road. Only codes thrown was low inject pressure from reset fuel pump and ECM/PCM processor code..... No crank still. Left truck in shop till
Mornin! Any ideas!? Recommendations??

CCRICE · Oct 27, 2012

Dose it give you a fault in your odometer or the lights in the can go out when you turn the key over or anything? Fuses all good?

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Snake · Oct 27, 2012

OEM oil filter and cap? If not, try that first. Just happened to a friend of mine a few weeks ago.

Jeremyleggett07 · Oct 27, 2012

The only light that came on was batt light.... All OEM caps and filters

Jeremyleggett07 · Oct 27, 2012

faster6.0 · Oct 27, 2012

What's icp when cranking...plugged in, If it doesnt fire when unplugged? Sounds like hpop failure...

Jeremyleggett07 · Oct 27, 2012

Yea icp was .2v.... Per my CTS... Replaced HPOP about year ago

Mixedbreed · Oct 27, 2012

Oil gauge rises when you crack it?

T.R.P. · Oct 27, 2012

JJ@Dozer's Diesel said:
What's icp when cranking...plugged in, If it doesnt fire when unplugged? Sounds like hpop failure...

ICP never got above 112 psi. We are pretty sure one of the d-rings on an injector failed.

CCRICE · Oct 27, 2012

Yeah I think it's supposed to be above 500 at cranking right?

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Jeremyleggett07 · Oct 27, 2012

Well 480 but yea.... Goin ahead and changing a injector Monday....

CCRICE · Oct 27, 2012

I'm guessing the d ring is a major thing? Never heard of it. I love learning though.

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Zmann · Oct 27, 2012

typically a a D-ring refers to a flat on one side O-ring

CCRICE · Oct 27, 2012

Gotcha, makes sense. Never heard it called that before. Haha

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G Racing · Oct 28, 2012

Sounds like you have a high pressure oil issue. You need to test the system before jumping to an injector. I would also take it to a shop that knows how to diagnose the issue. David at DI is close and there is Dorian at PSE. Both excellent shops in Houston. I doubt that the injector will be your issue. I would look at the hpop, ipr, and the stand pipes to the oil rails.

Big Angry Hillbilly · Oct 28, 2012

Sounds like the IPR went for a ****

Stroker04 · Oct 28, 2012

A D ring wont cause the truck to shutoff when it is going down the road, will it? Does it start when its cold? Whats the IPR valve at when cranking?

Jeremyleggett07 · Oct 28, 2012

I'm not sure about the IPR... I'm not a mech, but i know only what I've been told. Joe the guy who is workin on it is a ford diesel mech and has worked with David Lott at DI.

Big Angry Hillbilly · Oct 28, 2012

Doesn't really matter what IPR percentage is. When the PCM doesn't see 500psi cranking it keeps ramping up the IPR until it reaches 84 percent and the engine starts. Unfortunately the IPR position isn't monitored so we cannot verify quickly whether its actually closed or not without some more intrusive diag or disassembly.