[Shotimes] Help with Fuel system problem.

[Carl Prochilo]

To the best of my knowledge, the only time I ever hear the pump run
is if I turn the key to the run position but don't actually start
the car during for instance a KOnEOff test.  Then you can hear it
prime the fuel system.  Under normal operation when I actually start
the motor, the sound of the engine drowns out the pump.
-- 
Cheers,
Carl Prochilo
1992 Ultra Red Crimson

Kevin & Cheryl Airth said:
> I got the 190 LPH model. It's cheaper and I think just about the
> correct
> stock replacement. The ATX cars came with only a 63 LPH pump from
> the
> factory! Biggest difference I noticed was how quite the new pump is.
> Not
> working as hard?
> .
> .
>
>
>
>> Wow!  I've had that same exact problem (different car) and
>> actually
>> also arrived at the incorrect conclusion that the fuel pressure
>> regulator was at fault.
>>
>> About fuel pumps, what mods drive you to need a 255 lph pump?  I
>> am
>> starting to face the reality that sooner more likely than later my
>> 12 yr old fuel pump will need to be replaced.
>> --
>> Cheers,
>> Carl Prochilo
>> 1992 Ultra Red Crimson
>>
>> Kevin & Cheryl Airth said:
>> > Don:
>> >  The problem is in the fuel check valve in the fuel pump. You
>> get a
>> > new one
>> > when you change the pump. I don't know where to get just the
>> check
>> > valve. I
>> > am sure the car has enough miles to justify a new pump. I like
>> this
>> > guy for
>> > cheap hi-output pumps:
>> > http://www.autoperformanceengineering.com/
>> > .
>> > .
>> >
>> >
>> >
>> >> My son Ken's 95 ATX started displaying symptoms of fuel
>> >> pressure problems.  hard start when hot, bad idle for a while.
>> >>
>> >> Got out the fuel pressure tester, and the system won't hold
>> >> any pressure.  Key on, engine off test shows pressure went
>> >> to about 20 and then dropped like a rock.
>> >>
>> >> Engine on at idle, about 30 psi.
>> >>
>> >> I took a regulator off of my spare 3.0L engine (any
>> >> difference between the 89 regulator and 95 ATX?) and at
>> >> first it built about 30 psi and held it (key on, engine
>> >> off), then we started the car, started fine, pressure held
>> >> at the same 30.  Then shut off and pressure went to zero
>> >> immediately.
>> >>
>> >> Then tried keyon, engine off and it went to 40 and
>> >> immediately to zero.
>> >>
>> >> What do we do next, and do we still need a new pressure
>> >> regulator?  AutoZone quoted 85 bucks!
>> >>
>> >> All help appreciated.
>> >>
>> >> OH, car runs OK, just hard starting when hot, and bad idle
>> >> after hot start for a little while (maybe a couple minutes).
>> >>
>> >> Don Mallinson
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