i couldnt avoid this big *** puddle and i drove into it. i didnt give it any gas when going through. but when i got to the other side, it sounded like my car was running on 3 cylinders. i let the car run and pulled each plug wire to find what cylinder it was. it was the #2 cylinder.i cracked it without the plug in to get the water out, nothing. i changed the spark plug and still nothing. does this mean the motor is done for? any help. thanks alot.

 

Do a compression test to find out if you bent anything, if you have low compression in any cylinders, use a leakdown tester to find out where its leaking from. Same situation happpened to a friend of mine. Luckily he just needed a valve adjustment, simple fix.