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No added electronics. The check engine light goes on and off quite often, usually depending on where I purchase fuel, and yes it was already on when problem started
Okay, if disconnecting the battery does not solve the problem, can my husband check and replace the speed sensor or the speedometer cluster?
Yes absolutely he needs to start with the cluster these are known to go bad..If he is handy he will have no issues.Heres how to do it its the same as the trailblazer .ClickHereHoped this helped.Bonuses greatly appreciated.Please rate excellent service.If you rate anything lower it will leave me negative feedback so if you need further assistance please let me know thanks.