Help in Potterville, MI

duramaxdiesel

Dmax Nut
Oct 23, 2008
1,378
0
36
47
Montreal, Canada
The truck just went into limp mode out of nowhere on the 69E. Limped to exit 66 and pulled into the BP parking lot. CTS gives me codes P0204 and P2146. I clear the codes and it still goes into limp mode. I checked to make sure all the wires at the FICM were ok. They were. Next I checked the injector wire coming out of the valve cover. Looked tight. I unclipped it and sprayed some lube in there. It went half a mile and limped again. I have about 600 miles still to go to get home. Oh and to boot, I'm tied to a 33ft RV:mad: Any ideas guys?


Nick
 

JLB7

.....
Oct 27, 2015
13
0
0
California
#PIP3817: Diesel Engine with Injector Driver Codes P0201-P0208 - keywords 6.6L DTC FICM LB7 MIL miss misfire power P0202 P0203 P0204 P0205 P0206 P0207 P2146 P2149 SES - (May 16, 2006)
<TABLE class=blltnHdr><TBODY><TR><TD class=term>Subject: </TD><TD class=definition width="100%">Diesel Engine With Injector Driver Codes P0201-P0208
</TD><TD rowSpan=4>
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</TD></TR><TR><TD class=term rowSpan=3>Models: </TD><TD class=definition>2001-2004 Chevrolet Kodiak, Silverado</TD></TR><TR><TD class=definition>2001-2004 GMC Sierra, TopKick</TD></TR><TR><TD class=definition>Equipped with the 6.6 LB7 Diesel Engine</TD></TR></TBODY></TABLE><HR>This PI has been revised to add the 2004 model year. Please discard PI01433A.
<HR>The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
<DL><DT>Condition/Concern:</DT><DD>Intermittent injector driver codes P0201 through P0208.
</DD></DL><DL><DT>Recommendation/Instructions:</DT><DD>Complete the current SI diagnostics for DTC P0201-P0208. If the cause of the concern is not found through normal diagnostics, check for loose or corroded wire connections at the injector. The engine valve cover must be removed to perform this check.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
</DD></DL>
 

JLB7

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Oct 27, 2015
13
0
0
California
Done Injectors recently???
Check for any broken or pinched wires if someone has been in there recently...
 
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duramaxdiesel

Dmax Nut
Oct 23, 2008
1,378
0
36
47
Montreal, Canada
Checked all wires for rub through and I see nothing. Checked the connectors again and still nothing. I'm beginning to think the problem is on the injector harness under the cable cover. I checked the voltages and all seemed good. Then all of a sudden BOOM she limps and shuts down the whole bank of injectors. Runs only on four cylinders.

Do any of you guys know of a reputable shop around here? I Limped it to the Walmart parking lot in Charlotte, MI. I'd take the cover off here in the parking lot, but I don't think they'd appreciate that:D


Nick
 

JLB7

.....
Oct 27, 2015
13
0
0
California
possible that you either over tightened a connector and fractured the injector solenoid
stud and it broke or one isn't tight enough and worked loose causing it to not make a good connection.
 

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,674
1,941
113
Mid Michigan
HSP is 70 miles away from where he is.

The only shop I can think of is Team One Chevy in Charlotte. I believe they are next door to the Walmart.
 
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TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,674
1,941
113
Mid Michigan
Guys, he's broke down and limping. No way he's getting 50-70 miles, let alone 10. My goodness, think before you type, for cripes sake.

DD, if you havent already found a place, another option is to try Diesel Equipment Sales/Service, 578 E Main in Potterville. (517) 645-7684
 
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fastpunker

adrenaline junkie
Feb 7, 2012
215
1
16
Lake Havasu City, AZ
Guys, he's broke down and limping. No way he's getting 50-70 miles, let alone 10. My goodness, think before you type, for cripes sake.

DD, if you havent already found a place, another option is to try Diesel Equipment Sales/Service, 578 E Main in Potterville. (517) 645-7684


Sorry, I am still learning where everything is in MI... didn't realize Potterville was that far
 

stroke250

I May Be Lost...
Jul 1, 2008
490
18
18
Idaho
Guys, he's broke down and limping. No way he's getting 50-70 miles, let alone 10. My goodness, think before you type, for cripes sake.

DD, if you havent already found a place, another option is to try Diesel Equipment Sales/Service, 578 E Main in Potterville. (517) 645-7684

Tom, relax. We are offering help/options. If he has to get it towed, he could get to any of those places. Take a chill pill. Jesus.
 

duramaxdiesel

Dmax Nut
Oct 23, 2008
1,378
0
36
47
Montreal, Canada
Sorry for the delay in getting back guys. I was pulling my hair out trying to figure what to do. Especially since the truck was hooked up with the RV.

In the end I ended up calling in a favor. My mechanic that installed the injectors offered to drive all the way to Michigan and fix the truck. Yes, you read that right guys. He closed his shop for three days and made the 12 hour drive to fix my truck. In the Walmart parking lot no less. The #4 injector was defective. That was the fastest injector swap on a LB7 that I've ever seen. Truck runs great now. I still can't wrap my head around his customer service. Glenn, you saved my ass when I was in a pickle, hopefully I can pay you back somehow.

Thanks again to everyone on here for the help too. Tom offered to come by with tools and a scanner. I really appreciate it. This community right here is awesome. After seeing Adam's luck and members here helping him out, I'm glad I'm a part of it. I'd do the same thing for any one of you guys.


Nick