|2011+ LML Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect|
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|01-17-2013, 05:45 AM||eBay Motors #1 (permalink)|
Join Date: Aug 2011
2011 Electrical Problem
Has anyone heard of any problems with these trucks regarding the electrical.
Here's my problem: Driving truck and gauges started going down to zero/radio shut off/heater quit working/DIC went through alot of problems (check tire pressure/air bags/4wheel drive/etc.) It would do this in approx. 15 minute intervals. I tried to drive it the next day to the dealer and it wouldn't start, so I had it towed. Dealer has been problem solving for a week and can't find the problem, but the truck is mysteriously running fine now, so I am getting it back.
Does anyone have any advice on this. The truck has 25k on it and this is a sudden problem.
Thanks in advance.
|01-17-2013, 02:26 PM||eBay Motors #5 (permalink)|
Join Date: Apr 2012
Location: Casa Grande, Az
Could be anything to do with main power feeds. Battery, batt connections, alternator or lead to alternator, main power leads to underhood fuse block (especially if someone has added something and tied into a main lead somewhere), ground connections, well you get the idea, it really could be anything on these complicated vehicles.
2012 GMC 2500 SLT 4x4
H&S minimaxx, MBRP downpipe back SS duals, Insight CTS w/backup cam, Fass HD150, PPE rear diff cover, Amsoil front-rear w/bypass, Cognito 4-6 NTBD w/idler/pitman braces, a-arms, Recon smoked cab lights
Titan 57 gal saddle tank, linex color matched bedliner , Trekstep bed steps x2, RBP rail steps, Nitto Mud Grapplers, B&W Gooseneck
---Arizona Diesel Club---
it's not just a hobbie, it's an Adventure
|01-17-2013, 03:19 PM||eBay Motors #6 (permalink)|
Join Date: Aug 2011
Location: Clarksville TN
Agree. I had a vehicle years ago that did weird things like that and it was eventually tracked to the alternator but a bad connection would do the same thing.
2011 GMC 2500 HD. First ever diesel and loving it.
|01-17-2013, 08:50 PM||eBay Motors #8 (permalink)|
Join Date: Feb 2011
2011 Denali HD 3500 SRW (traded)
2015 SLT CCSB Summit White on Jet Black sunroof/rear slider/driver alert/ cooled/heated leather/nav/ telescope/tilt steer...
|01-17-2013, 08:56 PM||eBay Motors #9 (permalink)|
Join Date: Mar 2011
Location: Zanesville, Ohio
Which trucks had the wiring harness that rubbed and caused problems? Anyway, have batteries checked seperately, have the alternator checked, maybe belts and pulleys. But I would bet it's a wiring issue / connection issue somewhere.
2011 Chevrolet Silverado 2500HD WT, Victory Red, 4x4, ECLB, Duramax(LML)/Allison, Heavy Duty Towing Package
Insalled: Amp Research, Amsoil, ATS, Autometer, B&W, Back Rack, Bushwacker, Code Alarm, Cognito, DRP, FASS, Goodyear, H&S, Hypertech, Mayhem, MBRP, Plasti Dip, Precision, Ranch Hand, Rearview Saftey, Rhino Linings, Rigid Industries, Rough Country, S&B, Snow Performance, Titan, Warn, Weather Guard
Need the Guts to Install: Frost Fighter.
|01-17-2013, 09:26 PM||eBay Motors #10 (permalink)|
Join Date: Nov 2012
Location: Durango, CO
This may have changed between 06-11 but I had electrical issues with my stereo, mirror display and airbag light. At first I thought it was just a fuse because my airbag fuse was blown. Replaced it and it was fine for a week or so... Then it happened again, after I released my e-brake. I found a wiring harness on the DS floor board that is behind the e-brake arm, so after pushing it down many times it rubbed the wire coating off and grounded, causing my issues and blown fuses. Repaired the wire and moved harness and haven't had the problem since.
2006 LBZ W/ EFI DSP 5 by Rob, AFE intake and 4" turbo back. EGR blocked. Autometer boost & pyro gauges. All Amsoil.