there is no vent valve like your talking about Ben on these cars. its a very odd vacuum/pressure reliefe valve. on the trucks its a big black piece of shit hanging over the rear axle. this vent valve should be off the back of the tank near the rear axle. or you can also look at the hosing near the evap canister. behind that plastic cover near the filler neck. i believe this valve vents Threw the canister so no hydrocarbons are released So if the canister is plugged. no vent. it should be either white or black with 3 lines connected to it. 2 large diameter hoses and one smaller vacuum line. take a look and see. my 1993 and 1998 had them... then they were ripped off.....
__________________
1998 Firebird:buncha parts thats used to make it go fast..... not so much anymore. 
BAAAAAA!!!!!!
|