Can anyone here help me?!
Thread Starter
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New User
Joined: Feb 2005
Posts: 3
Likes: 0
From: Kamloops, BC
Can anyone here help me?!
I've been searching for forums high and low and cannot find an appropriate forum to post this in. 
I know this is a Ford TRUCK enthusiast site, but I do have a Ford, but its not a truck.
I have a rare 1972 Gran Torino with original Ram Air with a factory high-compression 351 Cobra Jet 4V.
Anyway, don't ban me
Here's my question:
<!-- message --> In my 1972 Gran Torino, weird stuff has been happening. The past few years when I have my driving lights on, all of a sudden my dash lights would go out, as with the horn, tail lights, side marker lights and front parking lights.
The interior light would still work as with my headlights and brake lights. 30 seconds later the driving lights and dash lights would "click" back on. Then it would repeat every minute --- "clicking" off. Then back on... doesn't seem to ever end.
I thought it was my horn shorting out, and I took that apart. Wasn't that.
So what can it be ? It only does this when engine is warmed up or so it seems.
Remember this only affects the: dash lights, horn, & parking lights.
Thanks in Advance guys
I know this is a Ford TRUCK enthusiast site, but I do have a Ford, but its not a truck.
I have a rare 1972 Gran Torino with original Ram Air with a factory high-compression 351 Cobra Jet 4V.
Anyway, don't ban me
Here's my question:
<!-- message --> In my 1972 Gran Torino, weird stuff has been happening. The past few years when I have my driving lights on, all of a sudden my dash lights would go out, as with the horn, tail lights, side marker lights and front parking lights.
The interior light would still work as with my headlights and brake lights. 30 seconds later the driving lights and dash lights would "click" back on. Then it would repeat every minute --- "clicking" off. Then back on... doesn't seem to ever end.
I thought it was my horn shorting out, and I took that apart. Wasn't that.
So what can it be ? It only does this when engine is warmed up or so it seems.
Remember this only affects the: dash lights, horn, & parking lights.
Thanks in Advance guys
Last edited by 72Torino; Feb 7, 2005 at 12:03 PM. Reason: email notification
Cargo Master
Joined: Aug 2003
Posts: 3,237
Likes: 3
From: Belleville, Ontario
Welcome to FTE !
There are lots of Fairlane, Torino sites out there. Try Torino GT on Google.
When you said you would have your driving lights on, did you mean regular headlights (full lighting system), or aftermarket lights? As far as I know, the thermal relay in Ford headlight switches only shuts off the headlights, not the park/dash lights.
The horn is included? Wierd! Try disconnecting one wire at a time from the horn relay to try to isolate the problem. I could only guess that 2 wires from these separate circuits have rubbed together somewhere. To further the guess, I'd look at the hot lead into the horn relay first &/or the hot lead into the park/dash lights.
Good luck finding the problem.
AL.
When you said you would have your driving lights on, did you mean regular headlights (full lighting system), or aftermarket lights? As far as I know, the thermal relay in Ford headlight switches only shuts off the headlights, not the park/dash lights.
The horn is included? Wierd! Try disconnecting one wire at a time from the horn relay to try to isolate the problem. I could only guess that 2 wires from these separate circuits have rubbed together somewhere. To further the guess, I'd look at the hot lead into the horn relay first &/or the hot lead into the park/dash lights.
Good luck finding the problem.
AL.
Thread Starter
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New User
Joined: Feb 2005
Posts: 3
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From: Kamloops, BC
Originally Posted by Dealford
There are lots of Fairlane, Torino sites out there. Try Torino GT on Google.
Originally Posted by Dealford
When you said you would have your driving lights on, did you mean regular headlights (full lighting system), or aftermarket lights?
Originally Posted by Dealford
The horn is included? Wierd!
Thanks Al, you've been the most help out of all the forums I've been on !
Darryl
Elder User
Joined: May 2004
Posts: 506
Likes: 0
From: Edwards Air Force Base
I would grab a Haynes if you don't have one already. There should be schematic wiring diagrams in the back. With it cycling on and off, I am betting you have a circuit breaker being overloaded and it is tripping off, then cooling down and coming back on until it overheats again and shuts down etc etc.
The wiring diagram should show if the horn shares the same power as the parking lights. If so, just troubleshoot that circuit and look for chaffing wires on metal somewhere, probably around a grommet, against a frame rail etc.
If they are on different circuits, then my bet is the lights have lost their ground and the circuit is using the horn as the ground or vice versa but lights are famous for breaking ground wires and backfeeding.
Good Luck,
Lee
The wiring diagram should show if the horn shares the same power as the parking lights. If so, just troubleshoot that circuit and look for chaffing wires on metal somewhere, probably around a grommet, against a frame rail etc.
If they are on different circuits, then my bet is the lights have lost their ground and the circuit is using the horn as the ground or vice versa but lights are famous for breaking ground wires and backfeeding.
Good Luck,
Lee
Moderator
Joined: Jan 2001
Posts: 57,027
Likes: 2,762
From: Virginia
the horn goes thru the light switch.
I learn something new everyday!
