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Full Version: Where is 69 Mach 1 gas tank vent?
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Does anyone know where the gas tank vent is on a 69 Mach 1? I have the flip-down gas tank cap.

Thanks,
Hutch
On a 69 and 70 vent is in the cap - 70 CAL emmission cars had a vent system on the top LH side of the tank
Thanks! Is there some way to verify that its' working? My car tends to stall on occasion in hot weather after hard driving and the gas has been sloshing around in the tank. When the car was about to stall, the guy that did my engine jumped out and popped the gas cap open and the behavior stopped. He said the vent might be clogged.

Is it just a pin-hole? Or is it like a radiator cap - where the spring provides the pressure control?

Thanks,
Hutch
On the twist off type it is a tiny hole
I would think the flip open would be similar