C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Vented or non vented gas cap for 86?

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Old 03-11-2003, 03:37 PM
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AGENT 86
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Default Vented or non vented gas cap for 86?

Buying locking gas cap, vented or non vented? Thanks!!! :confused: :cheers:
Old 03-11-2003, 04:11 PM
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65Z01
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Default Re: Vented or non vented gas cap for 86? (AGENT 86)

My '88 is non-ventged; I'd bet your '86 also is.

Check for the evap canister near the left headlight assy.
Old 03-11-2003, 08:37 PM
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Bob86ZZ4
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Default Re: Vented or non vented gas cap for 86? (65Z01)

My '86 seals up pretty tight. When I'm low on gas on a hot day and I unscrew the cap there is a rush of air. I don't know if it's rushing in or out tho.
Old 03-11-2003, 08:48 PM
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jfb
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Default Re: Vented or non vented gas cap for 86? (AGENT 86)

All C4's use non vented gas caps because the fuel system is a closed system.
Old 03-11-2003, 09:52 PM
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AGENT 86
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Default Re: Vented or non vented gas cap for 86? (jfb)

Why does my jobber list a vented and non vented gas cap for 86 ???????
Old 03-12-2003, 12:20 AM
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Default Re: Vented or non vented gas cap for 86? (AGENT 86)

Ask the jobber, how would I know. The factory cap is not vented.
Old 03-12-2003, 12:46 AM
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AGENT 86
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Default Re: Vented or non vented gas cap for 86? (jfb)

Thanks!! :cheers:
Old 03-12-2003, 02:55 AM
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Default Re: Vented or non vented gas cap for 86? (Bob86ZZ4)

Check out this recent article about excessive tank pressure.
http://forums.corvetteforum.com/zerothread?id=505470

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