2005 Ford Explorer Q&A

2005 Ford Explorer Question: I had the entire intake manifold replaced by a mechanic and now it misfires

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. -
Answer 1
POSS VACCUM LEAK OR MISROUTED VAC LINES OR BENT INJECTOR PRONGS -
Comment 1
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? -