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Herking-Jerking truck

(1990 Ford Ranger)
in Ogdensburg, NY on November 01, 2010
Hi! My question is this. My standard Ford Ranger (with a 2.9 engine) has been(for lack of a better word) herking-jerking up hills,turning corners,and on take off. Now i've been driving it for four months and this only started last week. It also seems to be backfiring. I've tried the battery terminal and changed the fuel filter but it's still happening. Any ideas?
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Popular Answer
on November 01, 2010
You could have an air leak in the engine intake system. These vehicles had trouble with the airflow sensor so that may be a clue, too.
Here's a directory link for you if you want to get it looked at:
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