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On a 1991 mustang gt there is a small device located under the steering column it works in conjunction with the ignition switch. It has contacts and two springs? it has fallen apart and now thw car wont start whta is it?

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That is the actual ignition switch the key and cylinder only turns to activate the ignition switch i recommend that you disconnect the battery until it is been removed do not try to put together with the battery connected replacing it is the best choice please let me know if you need further assistance i'll be glad to help if this was useful also please let me know thanx.

Posted on Mar 12, 2011

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Its been five minutes, no one has answered you yet, so I am going to step in for a suggestion... call your local ford dealer parts department -- better yet, if you can bring the part down there. They might not be able to get the parts there, but they can pull up schemata and print it and you can grab the part number..
with known part number: 800-543-4959
with unknown part number - 513-731-3304
Best regards

Posted on Mar 12, 2011


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What happens when you replace a car battery and put the positive to negative and negative to positive?

This problem is caused by a defective ignition starter switch, this is the main switch that turns on all of the power to the car except the headlights and the alarm. The switch is operated by a long steel rod from the ignition lock cylinder and it is located near the base of the steering column on the top. You will need to remove the lower dash trim under the steering column and then the two nuts on stds that hod the column up, carefully lower the steering column and you will see the large switch and connector. The problem with these ****-shell design switch is the two halves come apart over time and then the sliding contacts inside don't make connection. Ford recalled this switch on may cars from the 90's, suggest you call a dealer and see if it is covered under the recall for the ignition switch. below is a picture of the switch. It is easy to replace and cheap to buy, about $12.00 if it is not covered.

Dec 08, 2011 | 1991 Mercury Capri

1 Answer

My 1991 ford mustang runs great but shuts off and my car has a few electric problems could that be the case?

You could have your ignition switch coming apart, this was a common problem on these cars. Dont mistake the ignition switch under the column for the ignition key cylinder

Apr 25, 2011 | 1991 Ford Mustang

2 Answers

When i try to start my 1988 mustang gt. I have to hold the key over to keep it started if i let it go it shuts off?

it may need a little adjust in the ignition switch not the key cylinder but the electric switch it is located in the steering column under dash and is hold by two screws you will need a 5/16 wrench to loose these screws and push the switch a little to the front then tight the screws i hope this help you fix it i'll be happy to assist you if you have further questions please let me know if this was useful.

Mar 06, 2011 | 1988 Ford Mustang

1 Answer

I have an 86 mustang 5.0 .When I turn the key to the on position, the warning lights in dash do not cycle as they should.I replaced the ignition cylinder, no such luck... Any ideas out there????

If your fuses are good, and no loose wires, try the ignition switch, not lock cylinder, the ignition switch is located on the steering column about two-three inches away from the ignition lock cylinder towards the dash on the steering column.

Feb 10, 2011 | 1986 Ford Mustang

1 Answer

1990 ford mustang gt turn signals wont work but the hazards do. Replaced all fuses and all bulbs thinking about the ignition switch? Will this be a hard job to replace or will it be as easy as replacing a...

There are a number of things that could be wrong here. The best way to troubleshoot electrical issues is to work your way back from the device, in this case the lights. Make sure the bulbs are good. If the signalS both stopped working, I imagine all 4 did not go bad simultaneously. The next thing are the relays. These are located under the dash. There are also some in the fuse panel. Check you owners manual for application. The most likely culprit ona 20 year old Ford is the control stick itself. The contacts get all crummy and will open circuit the signal to the relay. You can sometimes get away with cleaning them, but the best bet is to replace since you have already gone through the trouble of getting into the steering column cover. Remove the column cover (there are phillips head screws underneath) and take off the top and bottom plastic cover. You will see the box that houses the turn signal controls. Disconnect the wiring and remove/replace. As I said, you can try to clean the contacts, but I recommend replacing it. If you can find a NOS, OEM replacement or one in good, clean working order.

May 13, 2010 | 1990 Ford Mustang

1 Answer

How do I locate the ignition switch and remove it from my gmc sierra 1991 ignition switch

The ignition switch is located on the top of the steering column underneath the dash.

1. Remove the cover panel from under the steering column and you should see the bracket that holds up the steering column, but before you un-bolt the bracket to lower the steering column, you must remove the clip holding the shifter position indicator cable to the column. (put the shifter into drive and you should be able to see the screw that holds the shift indicator cable adjusting clip to the steering column)

2. Remove the bracket holding up the steering column and carefully let the steering column down as far as it will go, the steering wheel will probably be resting on the seat.

3. You should now be able to see the ignition switch on the top of the steering column, and the two mounting bolts. The high beam switch might share the upper ignition switch bolt, and you will then need to remove the high beam switch before you can remove the ignition switch.

4. Remove the ignition switch mounting bolts (usually 5/16 but I have also seen 11/32 and 3/8 size bolt heads used)

5. Remove the ignition switch by lifting straight up from the column to dis-engage the interlink rod from the ignition tumbler assembly, you should then be able to pull the ignition over towards you just enough to dis-connect the two wire connectors to the switch and then you can remove the old switch from the vehicle. (the interlink rod is sticking straight up from the steering column and it slides up and down with the operation of the key, it fits into a notch in the ignition switch and that is what actuates the switch)

6. Reverse procedure to install new switch, starting with re-connecting the wire connectors and be sure that the interlink rod goes into the notch in the ignition switch.

7. When the switch has been re-installed and is ready to be adjusted, turn the ignition switch to the "ON" position and hold the key in that position and slide the ignition switch up and down until it is in the on position and your dash lights come on, tighten up the ignition switch mounting bolts and then test the operation of the switch, and re-adjust if necessary until the switch operates properly.

8. Adjust the high beam switch by pulling back on the high beam lever and just taking up the slack in the actuator rod to the high beam switch, test the operation of the high beam switch and re-adjust if necessary.

9. When the steering column is bolted back up, re-attach and adjust the shifter position indicator by placing the shifter in neutral and slide the adjusting cable clip until the shift indicator is pointing in the neutral position, test the function of the shift indicator and adjust as necessary.

Apr 24, 2010 | 1991 GMC Sierra

1 Answer

My ignition switch will not disengage when you

it sounds like the ignition switch itself if you pull the plastic off the steering column and turn the key you will see a metal rod that moves back and forth running to a plastic switch with quite a few wires running out of it this is actually what controls all the electrical contacts when you turn the key on or off

May 18, 2009 | 1996 Ford Mustang

3 Answers

Where is my ignition switch located on 1991 mercury cougar

The switch is located under the dash near the bottom of the steering column, u will need to remove the 2 nuts securing the steering column to the dash and drop it down to access the switch, make sure you install the switch with the same adjustment as the old one. here is a picture of a switch for your car.

Apr 29, 2009 | Mercury Cougar Cars & Trucks

2 Answers

Engine will not shut off.

Have u checked the actuator linkage from the ignition lock cylinder down to the ignition switch on top of the steering column near the bottom under the dash? de-trim the steering column, there are four screws that hold the 2 halves of the cover on the column u access them from the lower cover, feel for the access holes with your finger, then u must drop the column down from the dash connection/support by removing the support screws to the column under the dash, they are 15mm, the cover screws i mentioned are Phillips head.

Jan 05, 2009 | 1996 Ford Mustang

2 Answers

Ignition Switch


Ignition switches are usually located on the back of the ignition barrel and are usually accessed by removing the plastic cowelling from around the steering column.

The switch is the plastic bit on the end of the barrel with the wiring plug connected to it, and is usually held in place by one or two small screws.

Very best regards


Jun 09, 2008 | 1991 Chevrolet C1500

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