[s-cars] No start help please -update

Michael Wakefield mwake at rmi.net
Mon Jun 23 17:39:28 EDT 2003


In other cars, the fuel pump relay will start the pump running, but
relies on seeing the engine rpm come up to allow it to continue
pumping.  If it sees the engine is not running, it will shut off the
pump.  This is for crash safety.  I assume it does the same on our
cars, so it could indeed be the relay.  As far as the fuel pressure
regulator, you would think that the failure mode would be wide open,
that is, failure to regulate, as with a broken spring or leaky seat.  I
don't know how one would fail closed, but I've never had one apart, so
I suppose most anything could happen.  If the fuel pump failed, as in
the car was running fine, you turned off the engine, and on restart
attempt the fuel pump didn't run, the residual pressure in the system
would give you a few revolutions of running, but the engine would then
die and stay dead.  If the engine sputters a little each time you try
to start it, it is probably the relay and not the pump.  If you now get
no fuel out at all, it could be the pump itself, or maybe even the
ignition switch.
For what it's worth.
Mike Wakefield

On Monday, June 23, 2003, at 11:45 AM, Bill Mahoney wrote:

> This is a multi-part message in MIME format.
> --
> [ Picked text/plain from multipart/alternative ]
> Hola!
>
> Correct me if I am wrong but I'm going to guess that my no start
> dilemma
> is due to the fuel pressure regulator goin south.
>
> This is because the car stumbled then stopped and could not be
> restarted.  Cranks okay and has spark.  Removing all injectors and fuel
> rail showed no fuel being ejected at injectors (although this test was
> performed at dusk.)
>
> Fuse is okay for fuel pump and I think if the relay was bad it would
> not
> have stumbled but simply stopped altogether.
>
> True???
>
> Can the fuel pump be tested w/o spilling gas all over?
>
> I am debating in my head whether to just have it towed home and pull
> codes.
>
> Tow to mechanic and let him figure it out.
>
> Purchase the $80 FPR at the stealer and install where the car sits
> (bank
> parking lot.)
>
> Other choices?
>
> Bueller?
>
> Thanks much.
>
> Bill m
>
>
>
> --
>
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