1998 Mercury Mountaineer gas tank

1998 MERCURY MOUNTAINEER
100,000 MILES • 6 CYL • 4WD • AUTOMATIC
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MGRENIER
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when gas cap is on, back pressure is coming out of gas cap when truck is running and idle goes up and down. i have already purchased a new gas cap.
Mar 20, 2009 at 5:59 AM
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