my husbands car is shruggish, slow to start, and lacks power. sounds like a harley

[deanna o]

davidson when driving? This has been happing for months and the car has lacked to quit running so im encouraged that it may be something simple. He's not much of a fixer and im hoping i can fix the problem simply. a bad smell comes from the exhaust when started as well. please help

 

[Aaron K]

It sounds like a bad head gasket. (Not a simple fix.)