Mechanics

DOOR AJAR INDICATOR STAYS ON

2003 Mercury Mountaineer

Interior problem
2003 Mercury Mountaineer V8 Two Wheel Drive Automatic 98000 miles

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?
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Tdg
July 7, 2010.




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.
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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.

Tiny
P Kroll
Jul 14, 2010.

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