One problem related to fuel injector has been reported for the 2003 Chevrolet Trailblazer. The most recently reported issues are listed below.
The contact owns a 2003 Chevrolet Trailblazer. While driving 20 mph, smoke appeared under the hood of the vehicle and entered through the defrost vents. The flames spread through the hood and then underneath the vehicle. The fire department extinguished the fire and stated that the fuel injector was the cause of the failure. The vehicle was towed to a repair shop and they stated that the vehicle was destroyed. A police report was filed. The contact wanted to know what caused the fire. There is a recall for the faulty fuel injector for the 2002 models, but the 2003 models were not included. The current and failure mileages were 79,500.