A glazed or loose fan-belt could also be the problem: As the car's
speed increases it's need for electricity also increases putting a
greater load on the alternator/generator. If the fanbelt is glazed and
shiny or loose the extra load will create enough drag on the pully that
it will begin to slip rather than turn and the amount of electricity
generated will decrease, calling on battery reserves, and starving the
ignition system, all systems, actually, of the power needed to run
properly. The result will be a bogging down of the engine, dim
headlights, accompanied by low battery or dead battery. The problem
gets worse at night as the headlights create an even greater drain on
the alternator/generator.
On Friday, March 14, 2003, at 08:26 PM, RWestra@xxxxxxx wrote:
> Loyal:
>
> Did you replace the fuel filter when you replaced the fuel pump?
> A plugged fuel filter will act very much like a bad fuel pump. The
> new fuel pump could provide a little more pressure to overcome
> the plugged filter for a time, then as it plugged further the problem
> returns.
>
> You may have dirt in the tank and this problem may recur even
> though the filter and pump have been replaced.
>
> A third problem could be the in-tank filter plugging. I would
> try the in-line filter first.
>
> Obviously bogging down at highway speeds could be other things
> such as points, coil, plugs or wires but the fact that the new fuel
> pump corrected the problem for a time suggests you were on the
> right track.
>
> Rolland Westra
>
>
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