[Shotimes] Gas smell in car

[69crewcab@comcast.net]

I do get an air sound when i  unscrew the gas cap to add fuel.. is that normal??
It sounds like i'm relieveing pressure when i unscrew the gas cap..

-------------- Original message -------------- 
From: <clubairth@bellsouth.net> 

> Joe: 
> You evaporative emission system is plugged or you have a broken/leaking 
> hose. Is the CANP (CANister Purge) solenoid still working and is you 
> charcoal canister saturated with fuel? These are both located in the front 
> drivers side of the engine compartment. The CANP valve is attached to the 
> vacuum hose coming off the frontside of the manifold just behind the 
> throttle body. The hose then disappears down into the engine compartment but 
> the CANP is attached to this and then the hose continues to the charcoal 
> canister. The charcoal canister is a black round plastic canister with 
> several hose going into it. When this valve fails the canister just keeps 
> absorbing gas fumes until it can hold no more. The CANP valve allows the 
> engine to draw out the gas fumes from this canister as you drive around and 
> is controlled by the engine computer. The CANP will set a code so be sure 
> and run you codes first. 
> 
> You gas cap could be bad also. Do you get a small whoosh when you unscrew 
> the cap? 
> 
> The gas tank vents could also be plugged but this is more rare. Possible 
> damage to the plastic lines running from the tank to the front of the car? 
> 
> 
> > Group 
> > 
> > Ok here goes 95 mtx sho that has a horrible gas smell in the back seat 
> > area and outside the car...More noticeable inside the car, or if you put 
> > the windows down while driving...What should I look at?? Or look for? 
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