Replacement gas cap recommendation
04-26-2015, 09:24 PM
#1
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Car: 88 Trans Am GTA
Engine: 350
Transmission: 700R4
Axle/Gears: 12 bolt 3.73
Replacement gas cap recommendation
Got the gta running finally. While driving I noticed gas is leaking at the filler neck. Gas cap is some replacement cap. Figured I would check here and see if you guys have any recommendations.
04-26-2015, 10:05 PM
#2
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Re: Replacement gas cap recommendation
PROPER stock replacement is all you need. They are non-vented on 3rd gen EFI engines.
I had a 91 RS that would spew fuel out the cap ever time you nailed it with a full tank. Turns out some dingleberry screwed on a cap from a Ford Thunderbird. No idea why, but it leaked worse than if I had just stuck a rag in it. Put on a proper aftermarket replacement cap (Stant) and never an issue after that.
I had a 91 RS that would spew fuel out the cap ever time you nailed it with a full tank. Turns out some dingleberry screwed on a cap from a Ford Thunderbird. No idea why, but it leaked worse than if I had just stuck a rag in it. Put on a proper aftermarket replacement cap (Stant) and never an issue after that.
04-30-2015, 10:15 AM
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Car: 91 Camaro RS
Engine: 305 TBI
Transmission: 700r4
Re: Replacement gas cap recommendation
I second the Stant gas cap. I bought a locking one for mine though (had issues with someone "borrowing" gas in the middle of the night) and have no issues out of it.
05-04-2015, 11:45 AM
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Car: '85 IROC
Engine: 305
Transmission: T-5
Re: Replacement gas cap recommendation
Make sure the filler neck is round and not distorted into a teardrop shape from the weight of the gas pump.
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