'84 F-150 Blown Fuse? Headlights not working... - Ford Truck Enthusiasts Forums



1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

'84 F-150 Blown Fuse? Headlights not working...

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 11-02-2010, 09:30 PM
maybelle'84 maybelle'84 is offline
New User
Thread Starter
 
Join Date: Nov 2010
Posts: 2
maybelle'84 is starting off with a positive reputation.
'84 F-150 Blown Fuse? Headlights not working...

My 1984 Ford F-150's headlights went out this morning. Pretty sure it's a blown fuse...no idea where the box is. Looked at some diagrams, can't figure it out. Anyone know? How about which fuse is the right one for headlights? Help is greatly appreciated!!! ))

Maybelle'84
Reply With Quote
  #2  
Old 11-02-2010, 09:39 PM
Franklin2's Avatar
Franklin2 Franklin2 is online now
Moderator
 
Join Date: Jan 2001
Location: New Market, VA
Posts: 39,161
Franklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant future
The headlights are not fused. The only thing they have is a fusible link over at the pass fender under the hood.

The best thing to do is get a testlight or voltmeter, turn the headlights on, and probe the dimmer switch in the floor. If you have voltage on one of the wires at the dimmer, then the headlight switch is ok, and it might be the dimmer switch if you do not have voltage on any of the other two wires.

If you do not have any voltage on any of the wires at the dimmer switch, I would pull the dash and check the headlight switch itself.
Reply With Quote
  #3  
Old 11-02-2010, 09:46 PM
maybelle'84 maybelle'84 is offline
New User
Thread Starter
 
Join Date: Nov 2010
Posts: 2
maybelle'84 is starting off with a positive reputation.
Thank you so much!

Maybelle'84
Reply With Quote
  #4  
Old 11-03-2010, 07:32 AM
Grubbworm's Avatar
Grubbworm Grubbworm is offline
Postmaster
 
Join Date: Apr 2010
Location: Acworth, GA
Posts: 2,935
Grubbworm has a great reputation on FTE.Grubbworm has a great reputation on FTE.Grubbworm has a great reputation on FTE.Grubbworm has a great reputation on FTE.Grubbworm has a great reputation on FTE.Grubbworm has a great reputation on FTE.
A funny thing happened to me once. I had a headlight go out in my truck, so I replaced it. Two days later, when I went to leave a friends (at 11pm), both of my headlights went out when I turned them on. After searching high and low for three days, I found the problem. Both headlights blew out at the same time. It was time for the old one to go out, and the new one was defective. I replaced them and have had no issues since. From now on I will always replace the headlights in pairs.
Reply With Quote
  #5  
Old 11-04-2010, 06:58 PM
81-F-150-Explorer 81-F-150-Explorer is offline
Post Fiend
 
Join Date: Jul 2004
Location: Northern California
Posts: 8,791
81-F-150-Explorer is a splendid one to behold81-F-150-Explorer is a splendid one to behold81-F-150-Explorer is a splendid one to behold81-F-150-Explorer is a splendid one to behold81-F-150-Explorer is a splendid one to behold81-F-150-Explorer is a splendid one to behold81-F-150-Explorer is a splendid one to behold
The Headlamp switch is on a circut breaker. This will cause the lights to Flicker or flash on and off, but wont let the lamps go completely out when there is a short circut or defective headlamp switch.

The dimmer switch would be the first thing I would check as well. Wet feet and corrosion are very common cause of dimmer switch failure.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
No power to fuses Smokdivr28 1997 - 2003 F150 4 01-05-2016 05:54 PM
Blown Fuse, Truck won't start alaskauseg 2004 - 2008 F150 3 09-12-2014 10:27 PM
Fuse controlling power windows on 2001 F150 XLT artfd Electrical Systems/Wiring 2 04-16-2011 01:26 PM
no headlights erniek70 1999 to 2016 Super Duty 8 01-03-2011 07:09 PM
Will F100 grill fit 84 F150? klxstiffler 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 28 09-08-2008 08:50 PM


Go Back   Ford Truck Enthusiasts Forums >

Tags
1985, 1986, 72, 77, 84, f150, f250, ford, fuse, headlight, headlights, problems, stopped, truck, working

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 04:03 PM.