2004 GMC Sonoma Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2004 GMC Sonoma

2004 GMC Sonoma Problems

The Fuel Pump May Fail Causing the Engine to Stall or Crank Over But Not Start

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

Instrument Panel Lights Flickering and Exterior Lights Intermittent

The headlight switch used on the GMC Sonoma is known to fail through normal operation. Since the headlight switch is also integrated into the interior lights, a malfunctioning switch can cause issues with interior lights as well.

  • Symptoms of a failed headlight switch include:
  • Headlights and taillights failing to turn on or off
  • Interior lights flicker, or fail to turn on or off
  • Gauge cluster lighting off or flickering with headlights on
  • Parking light malfunctions  

This issue is well known with General Motors Trucks and SUVs, and is solved by testing and, if needed, replacing the headlight/dimmer switch. Bad grounding wires at the tail-lights, and dirty/corroded tow package wires can also lead to some of these issues. 

Loss of One or More HVAC Blower Motor Speeds

The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

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2004 GMC Sonoma Questions

abs light comes on for no reason (1 answer)

why does my abs light come on when there is nothing wrong with the brakes

temp reading during winter time 125 (1 answer)

temp gauge during cool mounths does not read correctly.still have heat and does not get hotter than 125 on the gauge. summer time reads 210. I have had the truck for 3 years. What could cause false reading?

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2004 GMC Sonoma Recalls

Air Bag Labels May Be Incorrect

Vehicles may have an air bag warning label with incorrect statements. This is against the Federal Motor Vehicle Safety Standard. Owners will be sent corrected labels and installation instructions. The recall began June 4, 2004. The GM recall number is 04021.

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