[T3] Fuel pressure leak

Jacob Adam Schroeder jacob.schroeder at gmail.com
Sun Aug 25 09:36:06 PDT 2013


When my car is running, I have a constant 28 psi on my fuel line.  The
second I turn off the key, the pressure immediately drops to about 20 psi.

The same is true before starting.  In other words, when I turn the key to
the first click, the PSI goes up to 28.  As soon as the pump clicks off,
the pressure drops immediately down to 20psi.  The pressure stays around 20
psi for an hour before it slowly begins to drop.  Last night, it was around
17psi when I went to bed (about an hour after I turned the engine off), and
in the morning I was around 5 psi.

Should I be concerned about this?  It is always 28 psi when running, but
I'm concerned that whatever is causing the leak could be giving me a super
rich mixture.  If so, what is the likely culprit and is it an easy fix?  I
understand that our fuel pumps are difficult to find.

I began to investigate my fuel pressure after I experienced some sort of
"vapor lock" issue on Friday.  After the 25 mile commute from work to home,
my wife had me go back out for groceries.  When I tried to start the car, I
got nothing and I could hear air bubbles in the gas tank (presumably coming
in through the return).  Any thoughts?

Thanks,

Jacob
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