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Q: My engine light came on after I changed the oil and air filter & it misfires on 2007 Chevrolet Trailblazer

Any suggestions on what I can do to correct this problem?
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Look back at the air filter replacement. If an air hose got pulled off or if a connector got pulled off... that is probably the issue.

Eric Sevim - ASE Master Certified Technician
A+ Japanese Auto Repair - San Carlos CA 94070
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