Mechanics

REV UP DRIVING OR SETTING AT STOPLIGHT

2000 Ford Ranger • 93,000 miles

When it rains my 2000 ford ranger will lurch as I drive it. I sometimes have to keep my foot on the brake in traffic because it takes off too fast.
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Right after it rains my ranger will rev up while I am driving or setting at a stoplight. When I take my foot off the brake it sometimes really revs up?
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Tkinton
July 4, 2012.




I would check the mass air flow or map sensor as atmospheric pressure effects both sensors.

Roy



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