Anyone know the source of an intermittant raw gas smell in my Pontiac Montana?

Thanks for the information. The spark plugs are new. Could be the coil. I will also check out the exhaust leak. I still don't understand why the problem is intermittant.

Did you figure out the problem and find a fix? I've had my Montana in 3 times for this issue and they can't figure it out.

We have been chasing this problem for the past couple years. this is our 3rd time in today - but in the previous 2 attempts - no improvement. It comes and goes, and like a gremlin, usually isn't smelling bad on the day I bring it in to the shop. With the intermittent nature of the problem, I wonder if it isn't due to some computer malfunction.

MINE was the injector o-rings!! Read it on another forum, couldn't see fuel, smelt it on the D.Side, when the hood was open as well.