Q: I just had my spark plugs changed and it was driving fine until the third day i noticed that the rpm is above a 1 and when at a

asked by on January 08, 2018

So yesterday i had my spark plugs changed . my car was running good until the next day i turned it on and all of a sudden it started to jump while in park the rmp was above. 1 and it shakes while im at a stop or light as if wanting to shut off I was told my coils were good and that the car had no engine check light so what could it be?

My car has 157890 miles.
My car has an automatic transmission.

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