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Unread 08-14-2010, 11:35 PM   #1
BottleRocket
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1991 Mustang ignition switch not working

I'm about to purchase this 1991 Mustang, but they key does not do anything in the ignition. When you turn they key it just spins forward, does not even click. There is a little white module connected to the wiring harness that fell off the bottom of the steering column. It looks like it used to go right up against the rod that moves when you turn they key. I cant figure out what I need to replace because it just wont stay in there and I cannot tell how it used to stay clipped in. Can anyone snap a pic of what its supposed to look like or offer some advice? I'll get some detailed pics tomorrow.
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Unread 08-14-2010, 11:52 PM   #2
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very simple fix IMO
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Unread 08-14-2010, 11:54 PM   #3
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very simple fix IMO
Its probably simple, but I've never encountered it before and wasn't there when it broke so I'm not entirely sure what happened. It has copper contacts on one side and the harness connector on the other. Under the column I can see where it goes, but not how it connects.
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Unread 08-15-2010, 01:12 AM   #4
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common problem with the switches breaking.... two bolts hold it to the column and the electrical side just plugs in....



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Unread 08-15-2010, 10:25 AM   #5
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^^^^very easy
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Unread 08-15-2010, 12:19 PM   #6
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if i remember correctly you will need tamper-proof torx bits to get the screws out...
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Unread 08-15-2010, 01:16 PM   #7
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The metal bracket is fine, the white portion fell out as well as the slider piece that is inside (the smaller white piece visible in pic 3). I'll take a look at it today, hopefully its just a matter of some coaxing and some (maybe) electrical tape.
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Unread 08-15-2010, 01:17 PM   #8
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just get a new one they are only $15 or so, and usually once they break they dont want to work right after that.
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Unread 08-15-2010, 02:57 PM   #9
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Ignition switches are a common problem on any Ford produced in the 80's or early 90's. It is an easy and cheap fix but should be addressed on any Ford car you purchase from this time period as it can lead to electrical failures or fire. Don't just stick it back up there with tape and continue to drive it. Get a new switch and all will be well.
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Unread 08-15-2010, 03:04 PM   #10
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Quote:
Originally Posted by slow84lx View Post
Ignition switches are a common problem on any Ford produced in the 80's or early 90's. It is an easy and cheap fix but should be addressed on any Ford car you purchase from this time period as it can lead to electrical failures or fire. Don't just stick it back up there with tape and continue to drive it. Get a new switch and all will be well.
Whoops. Didn't tape it but I did manage to get it to snap back into place without issue. Fit in pretty snugly too. I'll be sure to pick up a new one when I pick up the car
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Unread 08-15-2010, 03:05 PM   #11
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Whoops. Didn't tape it but I did manage to get it to snap back into place without issue. Fit in pretty snugly too. I'll be sure to pick up a new one when I pick up the car

Good luck with it.
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Unread 08-16-2010, 12:29 PM   #12
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Quote:
Originally Posted by butt86 View Post
if i remember correctly you will need tamper-proof torx bits to get the screws out...
Yep correct and for some advice, go get a motorcraft switch, i fucked around with borg warner parts from oreilys changing several failed ones and then got a motorcraft from the dealer solved the problem.
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