[WHOISBIGMAN1]

Like it says, I was on the turnpike, ran up to about 100mph for approx 2 minutes. Slowed back to about 70mph for about 2-3 minutes when truck started running really rough, wouldn't sustain 60mph. Pulled over and checked the obvious stuff... boots, oil spilled, water in oil, belts... nothing obviously wrong.
The truck runs like an old roofing truck. Only other obvious problem is the pyro gauge was stuck at 200 Degrees and wouldnt move. then went to 600 degrees and doesnt move. I looked and pyro is still stuck in manifold. I'm thinking maybe the turbo wheel came apart and took out the sensor??? I'm going to go outside and start taking things apart.

If you have any suggestions... I'll be back in about 30 minutes.

P.S. if you live out here in Loxahatchee, I could use someone out here smarter than me. /ubbthreads/images/graemlins/shrug.gif

Thanks...


.

 

[WHOISBIGMAN1]

Also, I hooked up the Diablo Sport tuner and checked for codes... no codes.

 

[montana_28]

if it will just barely stay running, you may want to take a look at the under valve cover harness clip... it was part of my problem not long ago. (if you haven't done it already!) with mine the SES light came on, but no codes... hope this helps...

 

[haul_n_horses2]

[ QUOTE ]
I'm thinking maybe the turbo wheel came apart and took out the sensor???

[/ QUOTE ]Is the pyrometer pre turbo or post turbo?

Any change in the amount of blow-by through the oil fill tube?

 

[WHOISBIGMAN1]

Thanks for the fast reply. Pre-turbo, in the drivers side exhaust manifold. Just pulled it out, it is intact. Pulled the boot off the intake side of turbo, wheel spins freely without noise... it's clean and intact on intake side.
There is a slight, almost un-noticeable amount of blow-by in dipstick tube, not enough to seem alarming. I wouldn't have noticed it if I wasnt looking for it.

 

[haul_n_horses2]

Just a WAG have you put the program back to stock to see how it runs?

 

[WHOISBIGMAN1]

Also, only light is the little engine shaped light in lower left corner of dash. This has come on in past without any problems. Usually just goes out. No codes???

 

[action4478]

Have you checked the oil level, & the oil level in the HPOR..?...

 

[WHOISBIGMAN1]

HPOR??? Okay... you got me. Whats the HPOR? There is oil on the dipstick.

 

[haul_n_horses2]

He meant HPOP, high pressure oil pump.

 

[WHOISBIGMAN1]

I will put it back to stock right now. Man you guys are fast.

 

[action4478]

Sorry,, High pressure oil resevoir ,,Should have oil to 1/2 inch from the top...

 

[WHOISBIGMAN1]

How do I check the HPOP?

 

[haul_n_horses2]

There is a plug, top right of the HPOP while facing the truck. Look here.

 

[arisley]

Small allen head screw on the top right.

 

[WHOISBIGMAN1]

In the picture, between the EOT and ECT sensors???

 

[arisley]

Yep

 

[WHOISBIGMAN1]

okay, oil is within 1/2 inch from top.

 

[WHOISBIGMAN1]

[ QUOTE ]
if it will just barely stay running, you may want to take a look at the under valve cover harness clip... it was part of my problem not long ago. (if you haven't done it already!) with mine the SES light came on, but no codes... hope this helps...

[/ QUOTE ]

Ive read about this before. It almost seems like something trivial... in other words theres no big oil puddle, no harsh noises, just running like crap.

I gues I'll be taking off the valve covers. Is there any way to check these without taking off everything, or am I going to be emtying out the engine compartment?

 

[action4478]

You may be able to help narrow it down to one side or the other by unplugging the injectors on the valve covers one at a time. One side will have less of a effect on the way it runs...Though usually the UVCH 's will set a SES....