I had Mechanic change my spark plugs and now couple of days later the engine light is constantly blinking what does that me and the car is running real rough and a service traction control light keep

Asked by Mar 24, 2017 at 11:24 PM about the 2006 Cadillac DTS Performance FWD

Question type: Maintenance & Repair

My 06 DTS I change the plugs and I was
running really rough and the engine light is
blinking all day long when I drive the car
what does that mean

2 Answers

290

If check engine light are blinking DO NOT DRIVE THE CAR. Bring the car back to the mechanic before more damage into the engine.

71,725

A flashing check engine light is warning you that the engine is misfiring and damaging the catalytic converter. Probably one of the spark plug wires wasn't on tight and fell off. I had that happen to me once. Definitely take it back to whomever did the tune up. HTH. -Jim

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