Smell of Gas when idling/after engine is shut off

Thanks, I knew that I'm getting excess gas somewhere - but not a dripping leak - as there is no puddle under the truck, and it doesn't smell if it hasn't run for a while (say for overnight).

I figured since it only occurs while driving it might be a malfunctioning sensor or something and it's getting too much gas. Perhaps a line seal that doesn't matter when the engines off, but when it's on, it leaks due to pressure or something.

I guess I'm looking for ideas of what & where to look based on peoples previous experiences as I don't want to spend a whole pile of money replacing components that work correctly and don't solve the final problem. For example, if it *is* in fact a malfunctioning sensor, I wouldn't know which ones to begin checking.

Thanks in advance!

=========================== Look for gasoline leaking, lines tank, ect. Maybe bad gas cap.....It doesnt take much to smell it.

The cause of my similar leak circumstance was a tiny pinhole in the fuel line - only leaked under pressure, sprayed out in a fine spray that either blew back when moving, or onto the hot exhaust (aack!!) when sitting - either way it evaporated and disappeared, only being noticable as the last dribble came out as the pressure died down. I've had two S-10s (don't recall what yours was) that had a leak in the same place - about a foot behind the filter, where the lines have a bend by a holddown.

Sweet, Thanks for the information. I'll take a look.

Also kind of sounds like leaky fuel injector. I would search the group for info on this, there was a marvelous post just a few weeks ago that explained it better than I ever could.

~KJ~

Thanks - except I can't find the paticular thread you're reffering to

- The last post I found was in May - a bit more then a few weeks ago! can you send me the thread?

"Leaky Injector" sounds expensive - they're probably a couple hundred each, right?

Thanks in advance

Last time I replaced one (TBI, though - don't recall how old the truck in question was) it was I think about $65.