What could the problem be. It wasn't shaky until after he replaced the intake manifold. It happens when I drive my vehicle. Ive taken it back 4 times. First they said that it was water on the spark plug and then there was water in coil number 7.
I had the entire intake manifold replaced by a mechanic and now it misfires on 2005 Ford Explorer
POSS VACCUM LEAK OR MISROUTED VAC LINES OR BENT INJECTOR PRONGS
If not fixed in a timely matter can this be harmfull to my car and about how much does this cost to get it checked out and fixed?