Two problems related to alternator/generator/regulator have been reported for the 2004 Chevrolet Colorado. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Colorado based on all problems reported for the 2004 Colorado.
Could cause fire!!! ac speed regulator of my 2004 crew-cab Colorado overheated so much that the adapter burnt in the inside and cables overheated to the point that it couldn't be touched and started to smoke. This is located underneath the glovebox compartment. If this is left unattended could cause a fire inside the vehicle!.
Throughout the course of ownership, I've had several complaints to the dealership concerning the faulty electrical wiring in my vehicle. Since 2004, all repairs have been electrical problems. I have reason to believe that the faulty wiring in my vehicle was the cause of fire to my vehicle which resulted in a total loss. I was also made aware by local firemen at the scene that they've had the same type of fires with the same make and model vehicle just in my area alone. Here is a summary of service history since taking ownership in 2004: brake switch replacement: 11/19/2004, 1/23/2006, 1/26/2007, and 5/26/2008 r&r blower resistor replacement: 8/28/2007 rear window regulator replacement: 5/1/2006 speaker replacement: 5/1/2006 complained about various electrical wiring issues on 1-24-05, 9-1-05, and 1-26-07 .