weird engine behaviour

Kejtar said:

Ok, I was driving my jeep and it did something really weird. First it started to loose power as though it was gas starved, then it sputtered and then finally with a loud BANG and lurch and jerk it all went back to normal. QUOTE]
Was it a bang, or a "cough". A cough is like a backfire through the intake manifold, and is caused by super lean mixtures. That would jive with the loss of power sensation.

Sounds like you had fuel starvation for a few seconds. Now as to WHY, that's a good question. I would check the obvious--fuel filter, fuel pressure, etc.

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AZ Jeff said:

Kejtar said:

Was it a bang, or a "cough". A cough is like a backfire through the intake manifold, and is caused by super lean mixtures. That would jive with the loss of power sensation.

Sounds like you had fuel starvation for a few seconds. Now as to WHY, that's a good question. I would check the obvious--fuel filter, fuel pressure, etc.

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when it originally lost power it didn't really "cough". I just pressed gas and it seemed to slow down and stop moving and suddenly I heard a loud BANG followed by a lurching/jerking motion and then everything went back to normal. In regards to the fuel filter... well the 98's don't have one... or rather they do, but it's non-serviceable (in tank on pump )

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