We've had heavy rains here in Cape Town and this weekend my fiancee's brother borrowed the Ka. He encountered a car stuck in water so had to reverse to get around it. At this stage the exhaust pipe was underwater. Now the engine chugs. What is the problem? Is there a way water could've gotten into the cylinders? The puddle was pretty deep.
Any advice would be greatly appreciated (not including smacking the fiancee's brother around).