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Old 08-28-2005, 14:50   #1 (permalink)
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91 Ford Thunderbird Headlight Problems

I have a 1991 Thunderbird 3.8 Fuel Injection that for some reason, after about 20 minutes of the engine running with the headlights on, the headlights will flicker on and off. Ive checked the wiring and dont see any cuts or breaks, Im really not sure on where to go from here to get this fixed. Can someone give me some help?

Thanks in advanced.
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Old 08-31-2005, 22:02   #2 (permalink)
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Re: 91 Ford Thunderbird Headlight Problems

bump?
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Old 09-30-2005, 11:15   #3 (permalink)
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Re: 91 Ford Thunderbird Headlight Problems

my 93 did the same thing head light switch
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Old 11-24-2005, 13:40   #4 (permalink)
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Re: 91 Ford Thunderbird Headlight Problems

Quote:
Originally Posted by jakeash
my 93 did the same thing head light switch
MY 91 did exact same thing...it was the switch right in the light beam handle..just have to replace it...really cheap to fix and easy! email me if you have questions
chrispied@hotmail.com
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Old 12-20-2005, 18:48   #5 (permalink)
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Re: 91 Ford Thunderbird Headlight Problems

same here, on my 93 SC. easy easy to fix. i did it with no tools
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Old 01-08-2006, 11:10   #6 (permalink)
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Re: 91 Ford Thunderbird Headlight Problems

Quote:
Originally Posted by chrispied
MY 91 did exact same thing...it was the switch right in the light beam handle..just have to replace it...really cheap to fix and easy! email me if you have questions
chrispied@hotmail.com

Please explain further, is this the turn signal handle? How do you remove and replace....any help would be greatly appreciated!!

Thank you.
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Old 02-27-2006, 09:47   #7 (permalink)
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Re: 91 Ford Thunderbird Headlight Problems

Replace the headlight switch.



examples:

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http://www.autobuyguide.com/1992/12-...lls/index.html

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1992 Ford Thunderbird
Electrical / Lighting Systems Malfunction When driving When warm

Q: The headlights begin to flicker after they have been on for a while. Is there a solution for this?

A: Most of the Fords have a breaker as part of the headlight switch assembly.... it is a circuit breaker and it gets weak after years of use.... A new headlight switch should fix this problem for you.... Ed
=-=-=-=-=-=-=-=-=-=-=-=-=-=
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Old 03-03-2006, 23:23   #8 (permalink)
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Re: 91 Ford Thunderbird Headlight Problems

Quote:
Originally Posted by awinter925
I have a 1991 Thunderbird 3.8 Fuel Injection that for some reason, after about 20 minutes of the engine running with the headlights on, the headlights will flicker on and off. Ive checked the wiring and dont see any cuts or breaks, Im really not sure on where to go from here to get this fixed. Can someone give me some help?

Thanks in advanced.
everyone here's got it. another cause may be the fog lights. my girls 93 would do the same thing, but only if the stock fogs were on. she started leaving them off and using an aftermarket set we picked up and the problem went away. definatly replace the switch first tho. also, there's something witht the wiring harnes for the switch where they used a light grade wiring and it would tend to burn out after a while. we also replaced that with a 94 or 95 wiring harness. good luck!
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Old 12-28-2012, 21:43   #9 (permalink)
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Re: 91 Ford Thunderbird Headlight Problems

Someone just emailed me about this but when i replied it came back in error, so thought id post here....

You have to pull the front dash assembly out . And I ended cutting a small
hole where the headlamp knob is (where you pull the lights to go on )which
made it a lot easier this is where the switch is that needs to be replaced,its not in the steering wheel .
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