I know this is supposed to be for engine discussion only but I thought I would have more of a chance here. My door ajar light stays on and all i hear is ding ding ding while im driving. Could anyone tell me where the switch is. I looked for it on the door and inside the door jam and cant find nothing. I have a 97 regular cab 4.6 liter

 

Is there a fuse you can pull to disable it? That might be the fastest way to stop the alarm. Hope that helps.

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Love my truck & PROUD of it! If you can't beat 'em, you're NOT driving a FORD!
Shovies PROVE that FORD'S are #1!!
'97 Black F150 XLT ORP 4X4 Reg Cab/LB
4.6L/auto/3.55 LS/power EVERYTHING,
nerf bars, 17" wheels, fog lights, trailer hitch w/electrical connector, front tow hooks, bed rail caps,
6 CD changer, lumbar support & 3 cow license plates - so far!

 

spay your door latches with WD40 and work them a few times. Should solve the problem

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'99 F-150
4.2 4X2 XLT

• 3" spindles
• 285/75/16 Cooper Discoverer STT
• Pacer 16X8 Aluminum Wheels
• cat back duals with Flowmaster 40 series 36"x3 1/2" chrome tips

 

Thanks guys i'll try the lubricant and see what happens if this does'nt work could you tell me where the actual sensor is located so i cna replace it

 

UB6IB9 says:
SPAY your door latches. Should solve the problem.
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I think 'spaying' just might help. Even if it does not stop your problem, at least it won't have any baby 'ding-ding-dings!' So be a responsible truck owner and have your latches spayed!

 

I can confirm the spraying your latches works. I fought this problem for a long time and this site helped me solve it! (although I used "alumalube" because it won't gum up or hold dirt like WD40)

 

StayBlown,
Stay away from WD-40. The stuff is garbage!! The active ingredient is vanilla oil. Once it gets wet, it's gone. I use a product called BOESHIELD T-9. It's made by the Boeing Aircraft Company. I use it on all of my guns as well, as all of my vehicles. It is waterproof and lasts for many months up to a year or so. You only can get it by ordering. The number is (800) 962-1732. Bugman.