2003 Mercury Mountaineer door ajar indicator stays on

2003 MERCURY MOUNTAINEER
98,000 MILES • V8 • 2WD • AUTOMATIC
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TDG
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The "door ajar" message stays on even when alll doors closed,?,believe it probably a sensor in one door ?,how to check sensor on doors also ,"low oil pressure" message also stays on though manual check of oil level indicates full ?
Jul 7, 2010 at 4:56 PM
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BLUELIGHTNIN6
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low oil pressure does not mean the oil level is low, it means the oil pressure is low..it could be a weak / failing oil pump or the gauge may be reading inaccurate. as for the door ajar light, it is a common issue with new model Ford / Mercury trucks and SUVs. one of the door ajar switches have failed or become sticky. try lubricating all door latches including rear with WD40 .
Jul 7, 2010 at 6:09 PM
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P KROLL
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Once you've determined which door the car thinks is ajar, a liberal dose of canned air (like you clean your computer with) sprayed in the door latch should work wonders. It works on my Ford Explorer.
Jul 14, 2010 at 9:40 PM
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