Fuel Injector Connector Kit
04.5-10 6.6L Chevrolet Duramax LLY LBZ LMM
- (8) Plastic Housing
- (8) Rubber Seal
- (16) Wire Seal
- (18) Terminals (2 extra)
Sooner or later, most 2004.5+ LLY/LBZ/LMM Duramax’s will experience the dreaded “injector harness problem”. GM routed the fuel injector wiring harnesses very tight on these engines, which can result in premature wire fatigue and connector-pin failure and/or intermittent loose connections at the fuel injector connector. When this happens, the ECM puts the engine into “limp mode” and shuts off half of the cylinders, resulting in an engine that sounds like it is about to scatter its parts all over the highway! Usually, this will set “injector drive circuit” codes and/or misfire codes.
The common “ice pick fix” is a good trick to get you home, but generally, it is not a good permanent repair solution, as the harness/connector/pins will eventually loosen up again. To rectify the problem without requiring the purchase of an entire new engine harness, GM released an injector harness repair kit.