Gas Fumes
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Junior Member
Joined: Nov 2002
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Gas Fumes
Odd thing when I drive I can smell gas fumes, I see no leaks but I am getting lousy gas mileage. Any Ideas?
1987 Firebird Tojan 5.0 Tpi Auto.
Thnaks, Lou
WHAT IS A TOJAN?
http://www.4u2buy.com/tojan.htm
1987 Firebird Tojan 5.0 Tpi Auto.
Thnaks, Lou
WHAT IS A TOJAN?
http://www.4u2buy.com/tojan.htm
Supreme Member
Joined: Jan 2001
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From: Halifax, NS,Canada
Car: 1995 Z28
Engine: LT1
Transmission: Built 4L60E
Axle/Gears: 3.23's - Limited Slip
To start investigatin, take your car and let it run on at a parking lot or someting, and wait 5 minutes then look for a puddle. If you can't find a puddle underneath, then look under the engine bay
Fuel could be leaking around your Fuel injectors. Its kinda hard to spot.
I had a leak too that took me a week to find, it turned out to be right under the brake booster where the lines run up onto the driversides frame. So I would start the car and look there.
Also look at the heat shield by the tank if it is leaking up top the tank, it will leak down on the heat shield, making it hard to find the exact spot it is leaking from.
Fuel could be leaking around your Fuel injectors. Its kinda hard to spot.
I had a leak too that took me a week to find, it turned out to be right under the brake booster where the lines run up onto the driversides frame. So I would start the car and look there.
Also look at the heat shield by the tank if it is leaking up top the tank, it will leak down on the heat shield, making it hard to find the exact spot it is leaking from.
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Joined: Mar 2001
Posts: 224
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From: IOWA
Car: 86 TRANSAM
Engine: 406
Transmission: 700R4
Axle/Gears: 3.27
My smell was so strong, I thought I would have a fire. But I found the problem to be the hoses on the charchol canister. I cut ends off and put them back on, adding a gas line clip to each. Not a screw on clamp, just a clip. Apparently the pressure in the gas tank was pushing vapor past the leaky hoses. It all went away.
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Joined: Jan 2000
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Good that you found it. Since it was an EVAP line, it may take a while to purge teh canister of all liquid, so don't be alarmed if there are intermittent faint fuel odors for a while.
If this is on your "HIS" car (the '86), don't forget that you are one of the lucky ones who still has a filter pad on the underside of the EVAP canister. I think the '87 is still that way, too:
If this is on your "HIS" car (the '86), don't forget that you are one of the lucky ones who still has a filter pad on the underside of the EVAP canister. I think the '87 is still that way, too:
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