Table 1 shows three common electrical system related problems of the 2004 GMC Sierra 3500. The number one most common problem is related to the electrical system (three problems). The second most common problem is related to the alternator/generator/regulator (one problem).
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems | |
| Alternator/generator/regulator problems | |
| Instrument Panel problems |
The fan for the heater doesnt work on all speeds properly, stopped working entirely Read details...
The contact owns a 2004 GMC Sierra 3500. The contact stated that the speedometer stopped working. The warning indicators were that the speedometer displayed faster speeds than what was actually being driven. As a result, the alternator gauge has failed. Read details...
Instrument gauges reading erratically, oil pressure,voltmeter, fuel gauge, temperature gauge. Read details...