why would the engine light come on but the car runs great? on 2005 Cadillac Escalade

engine light just came on

by in Henderson, NV on March 18, 2010
2 answers
ANSWER by on March 18, 2010
Check this article in the Repairpal's Auto Repair Encyclopedia; http://repairpal.com/check-engine-light
1 person likes thisFlag inappropiateReply
ANSWER by on July 29, 2010
Fuel cap could be loose. Tighten cap and drive for a day or two to see if light goes off.