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When i was Driving down the road and the check engine light came on in mye 2002 Chevy trailblazer?
Wiki User
∙ 12y ago
check engine light could be a number of things. First and easiest is to check your gas cap. Make sure its on tight every time you fill up. If that's not the case then go to AutoZone or Checker or some autoparts chain around you and ask them to read the codes. Or even take it to the dealer if its still under warrinty. "check engine" is usually emisson system, something is not right in the system, the code that the computer generates will tell you what it is. You can also buy a code reader, but they get a little pricey.
Wiki User
∙ 12y ago
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