06 Duramax rough idle and and loping

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,771
2,036
113
Mid Michigan
Moved to LBZ. We're going to need far more info than what you've posted. Any codes? What are they? Whats been done to the truck so far? Repairs you've already attempted for the problem?
 

Sonny Butcher

New member
Dec 25, 2016
3
0
0
Dayton tx
Yes it had codes #7 injector and crank sensor I cleared them they haven't came back only thing now is transmission codes now when it started doing this 3 injectors was changed ran fine for about 3 weeks started doing it again changed all 8 infectors since then put new filter housing timing gears replacing senor on the injector pump new ECM.
 

IOWA LLY

Yes, its really me
Feb 23, 2007
2,275
4
0
Water in the fuel? Did someone put gas in the tank instead of Diesel?

Where did you get injectors from?

How many miles on the truck? Could be a CP3 going bad sending metal into the injectors.

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IOWA LLY

Yes, its really me
Feb 23, 2007
2,275
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0
Also, since your getting random codes, check all your grounds.

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IOWA LLY

Yes, its really me
Feb 23, 2007
2,275
4
0
What do you mean you don't know where the injectors came from??? Didn't you say you replaced 3 of them, and then later all 8 of them???

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Awenta

Active member
Sep 28, 2014
4,090
2
38
CT
What's your rail pressure? Compression? Balance rates? I mean we need info and you need to do some real diagnosing. It's pretty tough to see what's going on through a screen.

What do you mean you don't know where the injectors came from??? Didn't you say you replaced 3 of them, and then later all 8 of them???

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I'm with you here haha



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