Correct Gas Cap for 1988 5.7 IROC....Vented or Non-Vented?
Thread Starter
Member
Joined: May 2005
Posts: 375
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From: Newark, DE USA
Car: 88 IROC-Z T-Top car with Bose
Engine: L98 5.7
Transmission: 700R4
Axle/Gears: 9 Bolt with 3.27's
Correct Gas Cap for 1988 5.7 IROC....Vented or Non-Vented?
Hey guys,
I'm trying to determine what kind of gas cap my 1988 IROC is supposed to have. When I bought the car, it had a vented unit. When I looked up and purchased a Stant replacement, it was non-vented. If I use the vented cap, I smell gas fumes at the rear of the car. The non vented cap gives me fumes at the engine copmartment. Just trying to detemine the right cap so I can troubleshoot the fumes problem.
Thanks for the help!
I'm trying to determine what kind of gas cap my 1988 IROC is supposed to have. When I bought the car, it had a vented unit. When I looked up and purchased a Stant replacement, it was non-vented. If I use the vented cap, I smell gas fumes at the rear of the car. The non vented cap gives me fumes at the engine copmartment. Just trying to detemine the right cap so I can troubleshoot the fumes problem.
Thanks for the help!
Supreme Member
Joined: Jul 2009
Posts: 2,328
Likes: 10
From: Kitchener, ON
Car: 1988 GTA
Engine: LB9
Transmission: T5
Axle/Gears: 3.45
Re: Correct Gas Cap for 1988 5.7 IROC....Vented or Non-Vented?
You will have a non-vented cap to contain evap emissions. You probably have a leaking hose on the system under the hood. Check near the evap canister.
Thread Starter
Member
Joined: May 2005
Posts: 375
Likes: 0
From: Newark, DE USA
Car: 88 IROC-Z T-Top car with Bose
Engine: L98 5.7
Transmission: 700R4
Axle/Gears: 9 Bolt with 3.27's
Re: Correct Gas Cap for 1988 5.7 IROC....Vented or Non-Vented?
Thanks for the info, I appreciate it! I did a 'sniff' test near the canister but was unable to come up with anything. I'll keep looking and hopefully I can find it.
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