Table 1 shows one common electrical system related problems of the 2005 Chevrolet C/k 2500.
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems |
Since having the heater / ac fan speed control modual replaced under a recall last fall, this summer I have had several situations where the a/c unit will turn to heat or, the a/c will go to defrost, defrost / feet, without moving the selector controls.
This vehicle is a duramax 2500 (diesel), the first thing that happened was the engine hours reset itself to zero the dealer said it needed a new instrument cluster then the gear shift indicator quit working so you have to count each time you move it to know what gear you are in I feel this presents a safety hazard and should be fixed by the manufacturer. Thank you .
2005 chevy 2500hd diesel - the number 2 and number 7 injector wire harness is not mounted properly. It rubs through and puts the truck into what they call "limp mode". It only allows the motor to got up to 2000 rpm. This happened to me twice with my current truck. The second time I was running down interstate I-80 @ 70mph on cruise control. It automatically began downshifting and slowing down. I was lucky a semi wasn't bearing down on me. Go to diesel place or any other blog on chevy durmax diesels and do a search for no. 2 & 7 wire harness for the second generation diesel (2004. 5-2005) - they must have fixed it after that.