EFI starting problems (was-still is : Fuel line check valve)

["Dick Benjamin" <dickb@xxxxxxxxx>]

OK, sorry, I don't keep all these cars and owners sorted out in my so called
mind - the gray fibers are apparently growing inward now (they no longer
appear on the outside of the skull) and I assume they are interfering with
the memory functions.

Anyway, your ASDM is doing the right thing since you hear the rear pump come
on.  The control fuel pump in the HSA is very likely working also, but to
verify that, take off the air cleaner lid and have someone cycle the key
while you listen or feel the pump, and watch the fuel nozzles - you should
see a brief squirt from them also - I think you'll find it is cycling also.
If it is not, check your Fuel Pressure Switch for resistance - it should be
less than 10 ohms.  These are well known as a problem site on these cars.


If you have the shop manual, go to page 14-104 (in the 81 manual, anyway, it
should be close). This is basically the "No Start/Fuel test #3"  (SOME OF
THESE TESTS MENTION THE EFI TESTER - DO NOT USE ONE, EVEN IF YOU HAVE IT!) \

If you get the short squirt of fuel during the cycle, your car should be
starting OK.  If you have not done so, I think it's time to check the
compression on this engine.

Dick.

-----Original Message-----
From: mailing-list-owner@xxxxxxxxxxxxxxxx
[mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of Rob P
Sent: Wednesday, August 18, 2004 5:35 AM
To: mailing-list@xxxxxxxxxxxxxxxx
Subject: RE: IML: EFI starting problems (was-still is : Fuel line check
valve)

Dick & list,

This is the same efi car you have been giving me advice on for the past 2 
months.  Autozone has the filters too.  The rear pump (an aftermarket 
external electric we have already discussed) is turning on to purge, usually

just a quick buzz, occasionally running for a few seconds.  I haven't been 
able to verify that the front one is.  It's still not enough, so I'd like to

replace the check valves.  Somebody here must have replaced them.  Without 
the check valves the purge cycle isn't always enough, I had the same problem

on an '03 which was replaced under warranty.

The car has other issues which contribute to the difficult/indefinite 
starting, but I am tackling them one at a time.

Rob


>From: "Dick Benjamin" <dickb@xxxxxxxxx>
>Reply-To: mailing-list@xxxxxxxxxxxxxxxx
>To: <mailing-list@xxxxxxxxxxxxxxxx>
>Subject: IML: EFI starting problems (was: Fuel line check valve)
>Date: Tue, 17 Aug 2004 21:15:03 -0700
>
>If your car is still EFI, the purge cycle that occurs each time you cycle
>the key from off to run should take care of any fuel drainback.  You should
>hear the fuel pumps come on for a second or so each time you cycle the key
>off/on - this is to purge the lines of any vapor.   If this isn't 
>happening,
>you may have a problem with your automatic shutdown module, which controls
>this purge timing, or with the fuel pressure switch (mounted on the 
>pressure
>line from the control fuel pump to the pressure regulator valves).
>
>The two filters that mount below the passenger door hinge post are NLA from
>Chrysler, at least at any reasonable price.  However, if you take them in 
>to
>your local NAPA store, they can match them up almost exactly.  I'm not 
>aware
>of any other filters, excepting the sock on the fuel pickup in the tank.
>

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