Three problems related to check engine light on have been reported for the 2002 Chevrolet Trailblazer. The most recently reported issues are listed below.
I was driving home from work and started hearing the trucks undercarriage start to rattle and grind on the bumps of the road. I had a sudden loss of power on engine and it wouldnt respond to my pressing on the gas. I believed that I had gas in the truck because the gauge read half full and apparently I was out of gas. So I proceeded to pull into a gas station and as soon as we filled up, the truck would not start! I saw that my check engine light was on and had to ask for a jumpstart to get it started again. At another time and date again the truck went dead, I asked for a jumpstart and the vehicle would not respond. I now had to buy a new battery because the car damaged the original battery and now with the new battery installed my car starts but will not stay on without me pressing on the gas while in park gear. I believe something may be defective with the electrical gauges, fuel delivery system, and suspension.
Engine check light came on while driving. Vehicle was taken to a dealership but dealership indicated they didn't know what component failure caused the engine check light to come on. Dealership serviced the vehicle and the consumer picked it up. The engine check light came back on within 2 weeks. Vehicle was taken back to the dealership. When the consumer picked the vehicle up there was a clanging noise while driving.
2002 Chevrolet Trailblazer. Numerous problems associated with car. Windows don't come down, doors don't unlock, and other issues. The consumer stated when he turned the key in the ignition, the windows would not roll down, unless it was done manually. There was a locking and unlocking sound coming from the doors. The consumer was informed there was an issue with the wiring inside the doors. Also, the check engine light illuminated due to a small evap leak and after market fuel cap. The windshield wipers were inoperative, the instrument panel lights were flicking on and off, the inside dome light would not come on. Updated 04/13/15. Updated 07/20/15.