[Shotimes] SHO shutting down when hot

[Steve Weinrich]

Did you notice any noise when opening the cap, either from pressure or from
a vacuum?

If it was a pressure "whoosh", that's not out of the ordinary as the cap is
supposed to hold pressure.

If it was a sucking/vacuum "whoosh", that means the inlet vent of the fuel
cap is defective and the cap should be replaced.  The cap (on pre-OBD-II
systems) is supposed to allow air into the tank to replace the volume of
used fuel.  If you have this symptom, it could be called a vacuum lock.  I
had it on my new boat with a 200 Merc and a clogged air inlet vent.

If there was no indication of air rushing into or out of the tank when
opened, you problem is not the cap.

Steve

----- Original Message -----
From: "Timothy L. Sorrells" <tsorrells@goodegg.com>
To: "Shotimes" <shotimes@autox.team.net>
Sent: Wednesday, April 02, 2003 8:18 AM
Subject: [Shotimes] SHO shutting down when hot


> I know I've seen something on this before, but not sure where.
>
> I was told when I bought my car(93 MTX) that when it's hot(outside temp,
not
> the car) I have to make sure to keep fuel in it or it will die.  Well, it
> died on me once when it got to a quarter of a tank. Since then, I've been
> keeping at least a half tank in it, but it is still doing it. I was in
line
> yesterday at the bank, try to take off, it dies.
>
> Funny thing, I thought about vapor lock in the tank, so I open the gas
tank,
> start it, runs great.
>
> What is going on? Do I need a new fuel pump?
>
> Any help is appreciated!!!
>
> Tim - 93 RED MTX - Columbus, IN
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