How do I remedy a P0303-cylinder 3 misfire. And how do I repair on 2004 Kia Spectra

The car is having a hard time shifting, automatic, especially when the ac is on.

by in Phoenix, AZ on July 20, 2012
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
ANSWER by , July 20, 2012
Swap #3coil with another cyl.See if misfire followes coil.may want to swap plug as well. With engine under powered,trans.will seem slugish.