If the check engine light is flashing on the 2002 Chevy TrailBlazer, then I can assure You it is not good news. The check engine will flash once the computer has detected a mIS Fire in the engine. What happens is the mIS Fire will allow fuel to be left unburned and to enter the exhauSTSystem. This is dangerous as it raises the temperature of the catalytic converter resulting in major damage. If this does happen, You can expect to pay a pretty big amount to have it repaired. Make sure to take Your vehicle to a repair shop as soon as possible so that it doesn't get any worse.
Robert J.
April 9, 2020
If your 2002 chevy trailblazer check engine light is flashing this is due to ignition issues. The engine has a misfire, but the computer can't detect which cylinder that it's coming from.
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