Joe Dille wrote:
>
> >
> >At 05:40 PM 2/6/98 , you wrote:
> >>Can anyone help me with this dakota? Subject is a '92 LE V-6, auto,
> >>PS/PB/PW/PL, sunroof, etc. Sharp truck, with 45,000 one owner miles.
> >>Lately, it has a habit of stumbling when accelerating, only when cold.
> >>Soon as it warms up, it runs super smooth. New Plugs, plug wires,
> >>distributor cap, rotor, EGR seems to be fine, no computer codes except
> >>12 (no battery backup on SBEC11). My mechanic friend can't figure it
> >>out (of course, by the time I get to his shop, it is warm and running
> >>great). Would appreciate any help. Bud, Franklin NC budnj@dnet.net
> >>
> >
> >When was the last time you changed the fuel filter? I've never heard of a
> >clogged fuel filter only acting up when cold, but if the stumble occurred
> >all the time and not _just_ when it was cold, I think the fuel filter
> >would be the #1 suspect. Anyway, it's something to consider.
>
> I agree with the fuel filter analysis. The fuel injection is
> programed to emulate the accelerator pump and the choke functions
> of a carburettor. Thiat it it gives an extra squirt of fuel when
> you accelerate, or it is cold. If the fuel filter is clogged the
> fuel injection can't give the extra squirt and you get stumbling.
>
What about a bad temp sensor. If the SBEC doesn't know that the engine
is cold, it won't be supplying enough fuel to compensate.
jeff
98 RC 4x2 V8 5spd 3.55SG
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