Headlights not working, what gives?

BowTie Eater 5 Liter · 03-01-2002, 12:41 AM

well, my lights gave out while driving home on wednesday night, and now im kinda in the dark

I had to drive home with a little flashlight shining on the ground infront of me to get home, along with my hazzards flashing.

the passing beam(pull back from the low beams) on the turn signal assembly doesnt work now, and it will only go into low beam(normal lights) and high beam(push forward from the low beams).

anyone have any clue???

my parking lights still work, but thats about it.

thanks

LX XLR8R · 03-01-2002, 10:51 AM

check fuse..i belive the running and the head lights are on diffrent ones...i doubt the same thing happened to you that happened to me the first day i bought my 87 hatch..driving it around the first night and the lights got dimmer..then all of a sudden the shut off..no idea why till i got home and noticed that the headlights were 1/4 full of h20 and when i went around a corner the water hit the bulbs and blew them out!!!so dont rule out the unobvious?!

BowTie Eater 5 Liter · 03-01-2002, 11:10 AM

i checked the fueses, and the only one not getting power was the fog light fuse.

LX XLR8R · 03-01-2002, 11:14 AM

check to see where you loose the power..odds are you need the "headlight fix"..it happens on almost all the GT's..the wires get too hot and burn out..to will need to wire a fatter gauge wire to the supply at the switch..the only other thing i can think of is that iff the brite/blinker..sometimes they wil make the headligts go out only...so go try those 2 things..do a search on headlight fix and im sure you find the exact way to wire it up..hope this hellps

BowTie Eater 5 Liter · 03-01-2002, 09:00 PM

fixed it, it was the turn signal assembly

fiveohpatrol · 03-02-2002, 02:30 AM

its actually called the multifunction switch like i told you thursday

but noooo you wanted to get the voltmeter and check the headlight switch

congrats on gettin it fixed. did you ever get another O2 sensor in there? is that fixed too

jimberg · 03-02-2002, 03:20 AM

Bowtie, if you want that switch to last longer you should either not run with your fog lights on all of the time or rewire the fog lights so they draw their power directly from the battery. I did the latter and it works great.

I rewired it so that the circuit that would normally power the fog lights will now power a relay for each light. I then have wires going from ground to the fog lights, the fog lights to the relay, and then the relay to the post where the positive battery terminal hooks to the starter relay. Everything works exactly the same as it did before except that it doesn't overheat anymore.

Here's a diagram:

03-01-2002, 12:41 AM	#1
BowTie Eater 5 Liter Registered Member Join Date: Nov 2000 Location: Maple Ridge B.C. Canada, The Best Place In The World Posts: 871	Headlights not working, what gives? well, my lights gave out while driving home on wednesday night, and now im kinda in the dark I had to drive home with a little flashlight shining on the ground infront of me to get home, along with my hazzards flashing. the passing beam(pull back from the low beams) on the turn signal assembly doesnt work now, and it will only go into low beam(normal lights) and high beam(push forward from the low beams). anyone have any clue??? my parking lights still work, but thats about it. thanks __________________ 1984 Bronco II, 36" Michelin Military Tires, 95 EFI 5.0, NP435 Tranny, NP208 Doubler, NP205 Transfer Case, Fill Size Solid Dana 44 Front End, WH Progressive Rate Rock Crawling Coils, Bronco 8.8 Rear, Skyjacker Softride Leafs, 5.13 Gears, Detroit Locker. Final Crawl Ratio Of 175:1 88 GT Best 60ft. 2.181 Best ET 14.350 Best MPH 98.01 ~WRECKED!!!!~ Last edited by BowTie Eater 5 Liter; 03-01-2002 at 12:56 AM..

03-01-2002, 10:51 AM	#2
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	check fuse..i belive the running and the head lights are on diffrent ones...i doubt the same thing happened to you that happened to me the first day i bought my 87 hatch..driving it around the first night and the lights got dimmer..then all of a sudden the shut off..no idea why till i got home and noticed that the headlights were 1/4 full of h20 and when i went around a corner the water hit the bulbs and blew them out!!!so dont rule out the unobvious?! __________________ 95 undecided cubes, AFR 185s,undecided cam, undecided intake, and a 150 hit 89 "turbonotch" 2.3T You might want to hold on..i saw this on a cartoon once

03-01-2002, 11:10 AM	#3
BowTie Eater 5 Liter Registered Member Join Date: Nov 2000 Location: Maple Ridge B.C. Canada, The Best Place In The World Posts: 871	i checked the fueses, and the only one not getting power was the fog light fuse. __________________ 1984 Bronco II, 36" Michelin Military Tires, 95 EFI 5.0, NP435 Tranny, NP208 Doubler, NP205 Transfer Case, Fill Size Solid Dana 44 Front End, WH Progressive Rate Rock Crawling Coils, Bronco 8.8 Rear, Skyjacker Softride Leafs, 5.13 Gears, Detroit Locker. Final Crawl Ratio Of 175:1 88 GT Best 60ft. 2.181 Best ET 14.350 Best MPH 98.01 ~WRECKED!!!!~

03-01-2002, 11:14 AM	#4
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	check to see where you loose the power..odds are you need the "headlight fix"..it happens on almost all the GT's..the wires get too hot and burn out..to will need to wire a fatter gauge wire to the supply at the switch..the only other thing i can think of is that iff the brite/blinker..sometimes they wil make the headligts go out only...so go try those 2 things..do a search on headlight fix and im sure you find the exact way to wire it up..hope this hellps __________________ 95 undecided cubes, AFR 185s,undecided cam, undecided intake, and a 150 hit 89 "turbonotch" 2.3T You might want to hold on..i saw this on a cartoon once

03-01-2002, 09:00 PM	#5
BowTie Eater 5 Liter Registered Member Join Date: Nov 2000 Location: Maple Ridge B.C. Canada, The Best Place In The World Posts: 871	fixed it, it was the turn signal assembly __________________ 1984 Bronco II, 36" Michelin Military Tires, 95 EFI 5.0, NP435 Tranny, NP208 Doubler, NP205 Transfer Case, Fill Size Solid Dana 44 Front End, WH Progressive Rate Rock Crawling Coils, Bronco 8.8 Rear, Skyjacker Softride Leafs, 5.13 Gears, Detroit Locker. Final Crawl Ratio Of 175:1 88 GT Best 60ft. 2.181 Best ET 14.350 Best MPH 98.01 ~WRECKED!!!!~

03-02-2002, 02:30 AM	#6
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	its actually called the multifunction switch like i told you thursday but noooo you wanted to get the voltmeter and check the headlight switch congrats on gettin it fixed. did you ever get another O2 sensor in there? is that fixed too __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

03-02-2002, 03:20 AM	#7
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	Bowtie, if you want that switch to last longer you should either not run with your fog lights on all of the time or rewire the fog lights so they draw their power directly from the battery. I did the latter and it works great. I rewired it so that the circuit that would normally power the fog lights will now power a relay for each light. I then have wires going from ground to the fog lights, the fog lights to the relay, and then the relay to the post where the positive battery terminal hooks to the starter relay. Everything works exactly the same as it did before except that it doesn't overheat anymore. Here's a diagram: __________________ 351W 89 Mustang GT Convertible

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