1986 Mercury Marquis Replaceing Ignition switch on the colu

Tiny
HAYSR
  • MEMBER
  • 1986 MERCURY MARQUIS
  • V8
  • 2WD
  • AUTOMATIC
  • 275,000 MILES
6 years ago, I had the dealer replace the ignition switch. A couple of years ago I noticed that I could not turn the key to accessory - no big deal - but it bothered me that it was not operatable. This past month I couldnt turn the key switch to the ON position to start the engine - with the switch hanging up somewhere. I had to apply alot of pressure and wiggle the key switch back and forth to get past -the point where it was hanging up. Last nite after work the after inserting the key - the switch wouldnt move a bit - YIKES ! The temp was 115 - and probably hotter inside the car (I live in Phx, AZ)- I finally wiggled and tapped on the sterring column until the switch finally freed it self and the engine started. Once at home - I turned the engine off and in Park - but left the key in the Ignition switch - and left the switch in the Off position, I did not dare turn the switch to the 'LOCK' position and remove the key - in fear of having a relapse. I feel that I can replace the switch If I have some instructions to follow. The car is very old and alot of parts are wearing out - Is there a way I can eliminate the sterring wheel locking mechinism. I feel there are some other parts wearing out - that causing the switch to fail. Thanks ahead of time - BTW: I think this is a great service to the Public and have donated to '2CarPros'. And will also compensate the technician.
Saturday, June 21st, 2008 AT 6:59 AM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
I would suggest you buy a Haynes manual if you intend to replace the switch yourself. Some auoparts stores will let you look at the manual first so you can get an idea of what you are getting into e.G. Special tools required, what you need to remove to get to the switch etc.
You could also search online auction sites for a factory manual, although these are written more for a technician whereas the Haynes is written for the DIY'er.
I would not disable the locking mechanisim, for safety reasons.
If you cannot find a new switch you can generally have a locksmith rebuild the old one.

Older cars (especially high mileage) come to a point where the cost of repairing becomes more expensive than the car itself. You would have to make that descision yourself, but buying a repair manual is inexpensive and can pay for itself in one or two repairs.
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Saturday, June 21st, 2008 AT 8:38 AM

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