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my check engine light comes on and off. on 2007 Chevrolet Trailblazer

check engine light comes on and off it has been doing it for about 1 year. My gas hand is broken could that be part of the problem

Asked by for the 2007 Chevrolet Trailblazer
Hi Yes if you gas gauge doesn't work properly it will turn the SES on and sometimes they go on and off depending. M