zachlow

If I go wide open throttle when going down the road my truck will be pulling fine, back off a couple hundered RPM's, then continue back on. Its not in a certain RPM range, usually happenes couple seconds after it downshifts. This a fuel problem possibly? Any ideas would be great. I know im overdue for a fuel filter change, so could that be the cause?

obusnizzle

its not a fuel issue. the convertor is locking and unlocking under load. The convertor is basically hunting for the proper RPM to match.

zachlow

Any clue for a cure of this. Truck is high mileage 170K, so I'm not surprised about it showing wear.

obusnizzle

new convertor. when is the last time the fluid was changed?

zachlow

Well actually, I've owned the truck since 142,000 and i havent changed the fluid yet. I was planning on changing it soon, but been fixing other parts of it first. And I would rather have a dealer flush it, to get the whole system cleaned out. I sohuld be getting it changed over my november break(first college break).