The missing happens only at idle speed. There is a mild shuddering that happens 
upon acceleration up to about 40 mph. The car runs beautifully on the highway. 

Sent from my iPhone

On Sep 11, 2012, at 4:26 PM, Dieselhead <126die...@gmail.com> wrote:

In many cases, NO.  sometimes you can see bubbles in the prefilter if the leak 
is ahead of it.

Best low cost cure/check is to start with a near empty tank, and replace ALL 
the hoses, starting at the tank.  also get the oring and check/clean the tank 
strainer.   ANY fabric covered hoses are suspect, as these are notorious for 
leaking air in but no fuel out. Any wet fabric denotes a bad hose.

While you are there, replace the return line hoses from the injectors, unless 
you did that within the past 6-12 months.

is the missing worst at idle or high speed?  Checking/replacing the hoses and 
adjusting the valves should have been the first steps.

I have had the transfer pump cause hard starting and rough running at all 
speeds.  If it leaks, put on a new one.



Would I see air bubbles anywhere?

Sent from my iPhone

On Sep 11, 2012, at 11:04 AM, Craig <diese...@pisquared.net> wrote:

On Tue, 11 Sep 2012 07:20:04 -0700 (PDT) Dimitri Seretakis
<dsereta...@yahoo.com> wrote:

Could the pump plunger thing- can't remember it's name spills fluid
when I pump it. Could this be creating an air leak that would result in
stumbling and stalling?

The hand pump could indeed be creating an air leak.


Craig

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