[Shotimes] Low RPM Stumble under acceleration

[Leigh Smith]

Mike;
It is possible it is the fuel pump.
My 89 starting doing just that, severe missing at 25-40% throttle, under
2700rpm. Mostly cold, not completely warmed up. New pump & it ran great.
Assuming you checked more common items like plug well oil, plug gaps, old
wires, etc.
Wide plug gaps (60k mi) had same symptom.
Leanest part of the fuel calibration.
Lee

----- Original Message ----- 
From: "M Khan" <jkhan302@yahoo.com>
To: "shotimes" <shotimes@autox.team.net>
Sent: Monday, February 27, 2006 5:57 PM
Subject: [Shotimes] Low RPM Stumble under acceleration


> Well, my 95 MTX is acting up a little bit.
>
> Symptoms are stumbling under acceleration limited only
> to between 1K and 2500 rpm.  Never any problems after
> that and it has a perfect idle.  Seems not to happen
> at lighter throttle, more of a fuller throttle
> problem.  Most always stumbles on inclines, like
> on-ramps.
>
> Probably related to this, is that its hard
> starting/long cranking except on full cold start like
> the first one of the day.  I have changed the CID last
> week and no difference.
>
> I'm thinking that its my fuel pump getting weak and
> the operation of the check valve failing.
>
> I would appreciate it if anyone on the list could
> chime in with their thoughts to maybe help me out for
> a proper diagnosis.
>
> Thanks,
>
> Mike
> 95 MTX
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