how do I clear "service engine soon" light on dash after making repairs recommended by chevy so my 2001 Silverado will pass smog

Asked by Espinola Mar 28, 2014 at 03:48 PM about the Chevrolet Silverado 1500

Question type: Maintenance & Repair

Truck would not pass smog.  Chevy dealer stated it needed a new Carbon Canister and
thermostat.  I have replaced both and do not know how to reset computer to clear "
service engine soon' light

5 Answers
25,265

Mark answered 10 years ago

Two ways to do it. Take it to an auto parts store where they will let you borrow an OBD-II Scanner and clear the codes that way. OR. Disconnect the battery for 15 minutes.

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60

GuruCBQH3 answered 5 years ago

Leave the battery disconnected for at least 35 minutes, to allow the computer to reset itself.

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40

Itzglamz answered 4 years ago

Iv disconnected my battery for about 30 mins and it still had the service engine light i had misfires in 7/8 cylinders so i replaced my ignition coils and spark plugs i still cant seem to get it to go off

4 people found this helpful.
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Alex answered 4 years ago

Ponga atención en todo el sistema de aire, puede tener una fuga por ahí.

Mark helpful

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