2nd Gen Non-Engine/Transmission Fuel Fumes inside and out

[Silver Sport]

Just recently purchased a Y2K 3500. The truck runs and drives great. Just a problem with fumes. When sitting at idle you get just a little hint of a fume which I have had in my other trucks and going to double check the cowl seal. My main concern is when you shut it down. I have a real strong odor of fuel for a couple of hours just sitting there parked. Get up in the morning to go to work the smell is gone but when I get to work I can go out there about 3 hrs later and still have a pretty good fuel fume lingering. Thanks for any info.

 

[BarryG]

I would check the fuel lines especially all the connections from the lift pump forward and check for drips/leaks/wetspots also take a close lookat the fuel filter cannister drain valve. Don't forget to check the return line as well. It is possible that one of the schrader valve needle pins has come a little loose unscrew the caps and check/smell closely. Since the smell is going away I would check it as soon after shutdown as you can. I would think it must be a small one probably just a weep and it must only be happening under pressure.

 

[RustyJC]

If you have an electric fuel pressure gauge, check the sending unit for leaks. (Don't ask how many sending units with ruptured diaphragms I've had to change out! )



Rusty

 

[OL RATLR]

Fumes

Silver Sport! check your crankcase breather

bottle see if it is full are leaking you may be

smelling oil.

 

[PHaller]

Or, just extend the breather tube to end within the slip stream of air under the motor so fumes don't get sucked into the cab. Common problem.

-Paul R. Haller-