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2003 Mercury Mountaineer door ajar indicator stays on

Tiny
TDG
  • MEMBER
  • 2003 MERCURY MOUNTAINEER
  • V8
  • 2WD
  • AUTOMATIC
  • 98,000 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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Wednesday, July 7th, 2010 AT 4:56 PM

2 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
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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Wednesday, July 7th, 2010 AT 6:09 PM
Tiny
P KROLL
  • MEMBER
  • 1 POST
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.
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Wednesday, July 14th, 2010 AT 9:40 PM

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