2003 Chevy Impala failed smog test because of broken cooling fan

I failed my smog test in my 2003 Chevy Impala. It was because of cooling fan. I fixed the problem and had my computer reset. How many miles do i have to drive before it will pass smog?


Answer:		Typically you'll need to drive your Chevy Impala through 2 or 3 "drive cycles" in order to set the proper "readiness flags" and get your Impala to pass the smog check. Drive cycles vary. Usually 1-2 weeks worth of driving is enough; somewhere around 100 to 200 miles. posted by SmogTips Support

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