Skip to content

Rev up your passion for Pontiacs and join our vibrant community of enthusiasts!

Whether you're a die-hard fan of classic muscle cars or you've got a soft spot for sleek modern models, you've found your home here at Forever Pontiac. Our community is dedicated to celebrating everything Pontiac, from the iconic GTO to the legendary Firebird and everything in between.

Unlock access to expert advice, stunning photo galleries, engaging discussions, exclusive events, and more!

Start your Pontiac journey with us today!

Sign up now! 🏁

Pressurized gas tank

Tom
in Pontiac General Discussion/Questions

Featured Replies

Hello all, 

I just took my car out and noticed when I went to the gas station and took off my gas cap the tank was pressurized. Anyone have this happen? I did some looking online and can't find anything for an old car. Mine is a 1971 Lemans Sport with a Pontiac 400 Stoker. No fuel injection. 

Thank you! 

Tired of these Ads? Register Today!

  • Author

There is a vent cap next to where the fuel goes in. I took it off and ordered a new one. It was probably clogged. 

2 hours ago, Tom said:

There is a vent cap next to where the fuel goes in. I took it off and ordered a new one. It was probably clogged. 

More than likely the vent cap is the issue! Usually what you described is actually a vacuum, not pressure, but it happens so fast when you loosen the cap it seems like pressure. 

    • Like 1

    Create an account or sign in to comment
    Go to topic listing

    Recently Browsing 0

    • No registered users viewing this page.

    Topics

    Important Information

    We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

    Account

    Navigation

    Search

    Search

    Configure browser push notifications
    Chrome (Android)
    1. Tap the lock icon next to the address bar.
    2. Tap Permissions → Notifications.
    3. Adjust your preference.
    Chrome (Desktop)
    1. Click the padlock icon in the address bar.
    2. Select Site settings.
    3. Find Notifications and adjust your preference.