[urq] Fuel tank vent issues?

[Patrick Carlier]

The poof is likely not pressure build up , it's vacuum .
Tank vent failing . ?

You could drive it for a while with the filler cap removed thus allowing air 
into the tank .

Indeed , it's the check valve or the lines to it that are suspected .

Pat


----- Original Message ----- 
From: "Jon Archibald" <talisman05 at gmail.com>
To: <urq at audifans.com>
Sent: Wednesday, February 25, 2015 3:27 AM
Subject: [urq] Fuel tank vent issues?


> Hi, been driving my car (85 w/3b) to work this week. Today on the way home
> the car simply died at a stoplight. I was able to get it to restart but 
> had
> to feather the throttle to keep it on while it ran roughly, similar to 
> when
> I had a high pressure fuel line rupture. Made it home at which point it
> then idled fine. Decided to get some fresh gas (it was down to about 1/8)
> and when I opened the gas cap it went POOF! Releasing pressurized air.
> Drove the few miles home and opened the gas cap again, no poof.
>
> Questions:
> 1) Is this likely a failure of the little check valve just over the tank?
> Would pressure buildup in the tank cause the stall? If so why did it come
> back to life after nursing along for 1/4 mile?
>
> 2)I'm assuming dangerous to drive this way until I get it figured out?
>
> I would like to drive the car until the weekend, but have a feeling I
> should park it until I get to the bottom of this.
>
> Any halp appreciated.
>
> -Jon
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