Q: Was having Idiling problems then the engine light went on

asked by on July 19, 2016

Was driving to work in traffic...when the car was idling the car started to shake. It continued happening and then eventually the yellow engine light went on. I've read it could be a number of things...lose gas cap, bad air filter or bad spark plugs. Then I was also reading it could possibly be a result of too much carbon build up in the intake values. Is there an easy way to diagnose? Thank you

My car has 100000 miles.
My car has an automatic transmission.

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