Strong Gas Odor

[bobp]

Hi, I recently got a 1984 C10 with a 305 engine.  After driving for a while and putting it in the garage, I get a real strong odor of gas.  I have checked for leaks but found none.  Some of the vacuum lines were old and cracked so I replace them but it didn't help with the gas smell.  Any ideas on where/what I should be looking for?  The PO said he put in a new PCV valve and fuel pump shortly before I bought it.  Thanks for any help.

[dsgb610]

Charcoal canister? try that

[cvbear]

x2  on the charcoal canister.  I will also say that an odor of gasoline is not unusual on these truck as compared to a fuel injected computer controlled engine on a newer vehicle.

[bobp]

Thanks for the replies.  The charcoal canister is there, what should I look for?  Do you mean I should replace it?

[zieg85]

The gas tank could be leaking and sitting on the plastic tank protector and not dripping on the ground.

[75gmck25]

Here are some fuel lines that are harder to check.

There are three short rubber lines (fuel feed, vent, fuel return) on the top of the gas tank that connect the sending unit to the metal fuel lines that run along the frame.  If you look down between the cab and the box you can probably just see the lines and the top of the sending unit  You can really smell the gas if they are seeping/leaking since its close to the windows in the cab.  If you need to replace them you might have to drop the tank down some or jack up the bed to get access.

If you have dual tanks there are also six more rubber lines that connect the fuel switch/solenoid under the truck on the passenger side to the hard lines.  These are relatively easy to see and check for leaks by just crawling under the truck.

Bruce

[Irish_Alley]

is your carb leaking (into the motor, will sound like running water) do you have catalytic converters?

[bobp]

No, the catalytic converter has been removed.  I was thinking of replacing it but I don't know what else I would need, like an O2 sensor and stuff related to the converter.  Any ideas on that?  Thanks.