Duramax wiring harness problem. Get expert tips and advice.

Duramax wiring harness problem. . This time (sorry I don't know the technical terms Oct 20, 2017 · The most common issues are #2/7 harness's and the wire bundle on the alternator. Jul 19, 2016 · Link to a post I put up on the Dmax forum a few weeks ago. Mar 5, 2016 · Ice picked 2 and 8 just for the heck of it though I'm now pretty sure the shop had replaced several of the injector connectors because wire color does not mesh with the FICM wiring diagrams. Now two years later motor starts knocking again and lost power. Jun 20, 2023 · This is the end result. Dec 14, 2006 · Follow the correct SI wiring repair procedures. Jun 14, 2021 · The entire harness (literally) can't be 'bad', but some part of it is not functioning correctly. Jul 1, 2022 · If you notice any of these problems, it’s important to have the wiring harness inspected by a professional as soon as possible. Faulty wiring can lead to serious consequences, such as engine fires or electrical shocks. I am also supplying the pic of the way they look when not chewed up. From there you have to start pulling wires apart and checking them VERY carefully. There's nothing mysterious about the individual wires within the harness. We reinstalled the wire sheath as well as taped it with high heat tape and then thick plastic wire loom ( or whatever its called). Said he pulled on the harness and it started firing again below the AC lines. Federal Emission laws prevent us from providing this service. Oct 8, 2014 · The pics will show the damaged harness connectors. Basically we beefed it up so it wont happen again for a long time if ever. Learn about the common wiring harness problems in Duramax diesel engines and how to diagnose and fix them. We then continued to inspect the entire wiring harness and nothing else was wrong with it anywhere. You need to figure out which specific wire (s) are causing the problem and just repair that bad wire. I've gone over wires as closely as I could from the FICM to the main wiring harness connectors and out to connectors. Get expert tips and advice. any pinhole thats touching metal can be the issue. So l am having major issues with my harness in short. EVERYONE needs to do this check and relocate the wire harness away from the metal AC line Mar 5, 2008 · 2002 gmc duramax lb7 giving dtc po202 03 05 08 and p1262 I have done voltage test on the injector circiut harness and all is good. Sep 18, 2018 · Issues with engine wiring harness. I had a head GM tech and fellow LLY owner look over my truck as I was only firing on 7 cylinders. This was back in January. Note: older engines in newer trucks (such as an LB7 in a truck newer than 2004) is the same answer as above. Insulate the harness from the aluminum retaining bracket with suitable material (electrical conduit or heater hose) so the harness will not chafe again. I changed the ficm ,cleared all codes and they come right back. I ended up doing the end replacement repair on two cylinders in 2 weeks. Male and female ends of both the upper and lower harnesses with the grey bale locks. I hear there are alot of problems in the injector harness,anyone know where to look? need help on Apr 21, 2005 · Hey guys working on a diesel duramax lb7 I am trying to find wiring schematics for the injector harnesses from email to fuel injector control module and from that module to injectors any one have that info? I'm getting a p1223 a p1232 a p1238 and a p1238 intermittently I cleared codes after first time to recreate problem rarely did it not enough to trip code again drove 12 miles now the first May 16, 2019 · Two years ago I had a problem with the engine wiring harness the typical bad wire going into the injector. Can you build a harness to swap a newer Duramax where an older Duramax was? (such as 01-05 truck getting an LBZ or LMM) - See the answer directly above. rcxzng qyytxj jwxipmzr fgxn qivqk yvtmha ezyvr hradv kcsrqjfq tdxqz