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-   -   duramax/diesel mechanics? (http://www.outdoorsmenforum.ca/showthread.php?t=347768)

treeroot 07-11-2018 06:01 PM

duramax/diesel mechanics?
 
2006 LBZ.

Truck hesitates, runs rough and blows exhaust at 1100 RPM. Idles fine.


Ran fine until I switched the serpentine belt. I had to take off air box, intercooler tubes to get access to the belt tensioner.

When I put it back together is when it started acting up.

fed 07-11-2018 06:17 PM

Do you remember to plug the mass airflow sensor in?

treeroot 07-11-2018 06:20 PM

Quote:

Originally Posted by fed (Post 3810546)
Do you remember to plug the mass airflow sensor in?

Yup.

One possibility is that the MAF sensor was damaged some how. The only way for me to check this is to buy new one tomorrow.

fed 07-11-2018 06:36 PM

Intercooler line loose cause loss of boost?

treeroot 07-11-2018 06:38 PM

Quote:

Originally Posted by fed (Post 3810550)
Intercooler line loose cause loss of boost?

Took them off and on about 5 times today. Tightened them right down. Everything seems to be fitted properly.

I also checked for cracks/leaks etc.

There's no leaky turbo sound either.


It's like as soon as the trucks RPM's are high enough to call for boost, it doesn't get any and the truck over fuels.

treeroot 07-11-2018 07:49 PM

figured it out.

sako1 07-11-2018 09:06 PM

Maf???

Tfng 07-11-2018 09:28 PM

Quote:

Originally Posted by sako1 (Post 3810627)
Maf???

Obstruction in the intake?

Marten1576 07-11-2018 09:38 PM

Quote:

Originally Posted by treeroot (Post 3810592)
figured it out.

Cough it up ! What did you do?

treeroot 07-11-2018 09:55 PM

Turbo sucked up a paper towel into the EGR. I couldn't believe when I idled it for 30 seconds it had that much suction.

spoiledsaskhunter 07-11-2018 10:15 PM

Quote:

Originally Posted by treeroot (Post 3810647)
Turbo sucked up a paper towel into the EGR. I couldn't believe when I idled it for 30 seconds it had that much suction.

lol!.....first thing I was going to ask is "are your shop towels accounted for?":)

artie 07-12-2018 06:34 AM

Quote:

Originally Posted by treeroot (Post 3810647)
Turbo sucked up a paper towel into the EGR. I couldn't believe when I idled it for 30 seconds it had that much suction.

thanks good information I can see that happening to me.


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