Question about 1986 Mercury Grand Marquis

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

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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

Posted on Jun 30, 2009


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Engine starts then dies after 2 to five minutes 85 mercury grand marquis have replaced distributor , ignition module , coil

Since you have replaced some of the ignition parts, have you checked fuel pressure and the fuel pump relay ?
Do you know what you are loosing when the engine dies ?

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Why won't my key turn?

Ignition cylinder could be bad, it happens. Try turning wheel one way while trying, then try the other way. If still no then either your using the wrong key or cylinder is bad. You can replace it yourself as long as you don't have chip in your pretty sure if that is case your better off having dealer do it. U can ask your local parts store about that. Just looked it is link Ignition Lock Cylinder 1998 Mercury Grand Marquis 8 Cylinders 4 6L SFI... 27 bucks

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Apr 24, 2011 | 2005 Mercury Grand Marquis

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Cylinder head torque value

Cylinder Head Bolt
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Specs are given in ftlbs

Step 1 28-31
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1 Answer

How hard is it to change the Ignition Key Lock Cylinder? Do I need to take off the Steering wheel or does the guts just come out from the Steering Col with a pin, or something?

this is the oldest info I have. should be similar

Section 11-05: Steering Column Switches 1994 Town Car, Crown Victoria/Grand Marquis. Workshop Manual
  1. Disconnect battery ground cable. Remove the upper steering column shroud by removing the four or five self-tapping screws. Remove tilt steering column lock lever (if so equipped).
  1. Remove lower steering column shroud.
  1. Disconnect the ignition switch electrical connector.
  1. Rotate ignition switch lock cylinder to the RUN position.
  1. Remove the two screws retaining ignition switch.
  1. Disengage the ignition switch from the actuator.
NOTE: A new replacement ignition switch assembly will be set in the RUN position as received.
  1. Adjust the ignition switch by sliding the carrier to the ignition switch RUN position.
  1. Check to ensure that the ignition switch lock cylinder is in the RUN position. The RUN position is achieved by rotating the ignition switch lock cylinder approximately 90 degrees from the LOCK position.
  1. Install the ignition switch into the actuator. It may be necessary to move the ignition switch slightly back and forth to align the ignition switch mounting holes with the lock cylinder housing threaded holes.
  1. Install retaining screws. Tighten to 5.6-7.9 Nm (50-69 lb-in).
  1. Connect electrical connector to ignition switch.
  1. Connect battery ground cable. Check ignition switch for proper function, including START and ACC positions. Also, make certain that the column is in the LOCK position.
  1. Install upper steering column shroud.
  1. Install the lower steering column shroud and tilt steering column lock lever (if so equipped).

Nov 06, 2009 | 1992 Lincoln Town Car

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

How do i change the ignition switch on 89 camaro?

I have not change the switch on a Camaro, but I have changed them on other vehicles, such as a 1985 Chevy truck. It should be similar. You do have to remove the switch from the cylinder lock first. On my 85 truck, there was a ring that held the switch to the lock. I disconnected the wires (after making a drawing showing where each went) then screwed off the ring and removed the switch.

Jan 18, 2009 | 1989 Chevrolet Camaro

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1985 Grand Marquis won't start

no..i also have an 85 gr. marquis with the 5.0 engine... i changed the starter solenoid located next to the battery on the passenger side firewall of the car.. if it clicks then its either the solenoid or the starter..those are hard to kill cars with good grounds..check the solenoid..

Dec 23, 2008 | 1985 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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