Question about 1986 Mercury Grand Marquis

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How do I get the ignition cylinder out of steering colum in a 1986 merc grand marquis

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On the colum where the ignition comes out there should be a little hole on the bottom. put a small wire in the hole and push in on the detent and turn you ignition to the off position and the tumbler set should slide out. You will need the key in the ignition for this to work

Posted on Sep 09, 2010


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I have a 1986 mercury grand marquis and when i turn the steering wheel or wiggle the steering wheel the car will die is this the ignition switch

Hello, This can be an Ignition switch if you have the Ignition on the steering column. If this happens only at "Idle" speeds then the problem may be that the engine is idling too slow. If at any speed, then disregard the idle as the problem.
There are several screws holding the plastic steering column cover on. They generally are in recessed holes in the bottom of the plastic cover. Some Ignition switches are more complicated to remove. There is a push hole for a spring in the lock cylinder which allows the core to come out.

You will need to disconnect and reconnect the battery several times because the Key core needs to be in the Acc or Run position for the core to line up to be removed.

This is not a difficult job for an Experienced person. You do have to mark the Key switch position to its mounting place. The connection lengths for the rod or cable running through the steering column is critical. This is why you try to match the switch position before tightening everything down.

You may also find that the mounting bollts have Security shapes on them requiring matching sockets to fit over them to turn them. They are available at Autoparts stores.

Oct 20, 2011 | 1986 Mercury Grand Marquis

1 Answer

Where is the fuse box located?

its located under the dash on the drivers side to the left of the steering colume.

Aug 05, 2011 | 1986 Mercury Grand Marquis

2 Answers

Car lock in park

Below is the procedure for unlocking your your gear shifter. your vehicle is equiped with a brake shift interlock which is and I'm sure you know this but if the brake is not pressed in it will not shift. I would check to see if you have a blown fuse for that circuit and also I am pretty sure if you brake lights are not working the same thing will happen. i hope this helps you and good luck.


May 01, 2011 | 2002 Mercury Grand Marquis

1 Answer

1988 merc grand marquis, vacuum diapram, symptoms? any gear i put it into, i hear a vacuum like sound, is this it?

The 1988 merc has an automatic emergency brake release that has a valve on the steering column under the dash, when you put the tranny in gear it sends vacuum to the valve on the brake to release it. It could be the valve on the steering column that is the problem. Good luck!

Mar 28, 2011 | 1988 Mercury Grand Marquis

1 Answer

What type of powers steering fluid should i buy for a 1990 grand marquis?

Transmission Fluid---Dex/Merc

Do not use power steering fluids, found in the parts store, or any product, for any application with a sealer.


Use what your vehicle was designed for

You should flush your P/S Fluid every 3 years
That alone will not correct a problem

Nov 23, 2010 | 1990 Mercury Grand Marquis

1 Answer

I have a 1999 Jeep Grand Cherokee. The vehicle

sounds like the key is either worn down to where the ridges in the key wont push the tumblers inside the key lock cylinder into their proper place to move the cylinder into the starting position. Or your steering colum is locked and the wheel is moving freely as if it were not. So your solution would be to either have an expert look at it (estimated cost: 200$ low/400$high) or you can attempt to fix it yourself.
should you choose the "I'll fix it myself" method....try getting a new key made at a hardware store since keys wearout over time (ie:10years of turning that old key), this may solve the problem right away if the ridges are just worn on the key. Or the hard way, you need to get a phillips screwdriver and some jewelers tools and an 8mm or 10mm wrench/rachet+socket to disconnect the battery, then underneath the steering colum just under the ignition is a hole in the colum shroud/cover, from there you can disconnect the ignition key lock cylinder (the thing you put your key into). once you've removed the cylinder from the steering colum you should test your key again to see if you can turn the cylinder outside of the colum if you cannot then buy a new ignition key lock cylinder for about 15$-30$...problems solved.

Nov 18, 2009 | 1999 Jeep Grand Cherokee

1 Answer

How do I change the ignition lock cylinder on an 85 marquis

Remove the steering column shroud first. Then you will be better able to find it. It is a small hole on the underside of the steering column housing, right under the area where the lock cylider is. You will need to use something very small to push the pin. The ignition lock cylinder has to the key inserted, and be turned to the "run" position before the pin will release and allow you to remove the lock cylinder

Jun 30, 2009 | 1986 Mercury Grand Marquis

1 Answer

Need to remove the ignition lock cylinder to replace it cause the key is lost

turn the ignition to the on position then on the bottom of the steering colum just under the lock cylender thare is a hole that leads up to the cylender. get a straight pick or somthing with a point on it and insert in hole apply a little steady force while pulling straight out on the cylender. i am assuming you are talking about the ignition lock cylender.

Apr 20, 2009 | 1995 Mercury Grand Marquis

1 Answer

Do i to remove my steering wheel to replace my ignition switch

just remove the top and bottom plastic steering colume covers that wrap around the ign lock cylinder. than you will see from the bottom of the barrel where the lock cylinder slides in there should be a 1/8 brass pin in a small hole .. you have to push in this pin while turning the key switch foward, than just slide out the lock cylinder key and all. reinstall is just as simple , slide in the lock cylinder and just remove the key. you should not have to remove the steering wheel at all...
good luck chris

Mar 17, 2009 | 1996 Mercury Grand Marquis

1 Answer


You need a new ignition lock cylinder installed, common problem on your model.

Aug 03, 2008 | 1986 Mercury Grand Marquis

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