Headlights randomly turn on off and on - Ford F150 Forum - Community of Ford Truck Fans



Headlights randomly turn on off and on

Reply
 
 
 
Thread Tools Search this Thread
Old 09-12-2017, 02:00 PM   #1
Junior Member
Thread Starter
 
Join Date: Mar 2017
Posts: 11
Thanked 0 Times in 0 Posts
Default Headlights randomly turn on off and on

My headlights have started turning off and on randomly. At first it was only when the brights were on but last time I drove the dims started doing it too. dash and taill lights stay on and turn signals still work. any suggestions on were to start looking?

1990 f150 5.0 5spd 4wd

Last edited by Jeff Switter; 09-12-2017 at 02:21 PM.
Jeff Switter is offline   Reply With Quote
Old 09-12-2017, 02:11 PM   #2
Moderator
 
BadFish523's Avatar
 
Join Date: Mar 2015
Location: Nebraska
Posts: 3,279
Thanked 355 Times in 315 Posts
Default

Year? Engine? Model?
BadFish523 is offline   Reply With Quote
Old 09-12-2017, 02:17 PM   #3
Junior Member
Thread Starter
 
Join Date: Mar 2017
Posts: 11
Thanked 0 Times in 0 Posts
Default

1990 f150 5.0 5spd
Jeff Switter is offline   Reply With Quote
Old 09-12-2017, 02:21 PM   #4
Junior Member
Thread Starter
 
Join Date: Mar 2017
Posts: 11
Thanked 0 Times in 0 Posts
Default

added info to post.
Jeff Switter is offline   Reply With Quote
Old 09-12-2017, 02:51 PM   #5
Moderator
 
BadFish523's Avatar
 
Join Date: Mar 2015
Location: Nebraska
Posts: 3,279
Thanked 355 Times in 315 Posts
Default

Having all the info may help you get the answer you need. Sorry that I cant provide you with the answer though.
BadFish523 is offline   Reply With Quote
The Following User Says Thank You to BadFish523 For This Useful Post:
Jeff Switter (09-12-2017)
Old 09-13-2017, 09:31 AM   #6
Senior Member
 
BLDTruth's Avatar
 
Join Date: Jun 2015
Location: Oregon
Posts: 1,648
Thanked 237 Times in 221 Posts
Default

Probably a bad headlight switch
BLDTruth is offline   Reply With Quote
The Following User Says Thank You to BLDTruth For This Useful Post:
Jeff Switter (09-15-2017)
Old 09-13-2017, 01:17 PM   #7
Senior Member
 
Eric Fullerton's Avatar
 
Join Date: Apr 2017
Location: Denton, TX
Posts: 249
Thanked 37 Times in 34 Posts
Default

I've seen that frequently, so far it has always been the dimmer switch.
Eric Fullerton is online now   Reply With Quote
The Following User Says Thank You to Eric Fullerton For This Useful Post:
Jeff Switter (09-15-2017)
Old 09-18-2017, 03:35 PM   #8
Junior Member
Thread Starter
 
Join Date: Mar 2017
Posts: 11
Thanked 0 Times in 0 Posts
Default

Found the problem, the connector to the headlight switch was burnt. I replaced connector, switch and dimmer switch. seems to be working now.
Jeff Switter is offline   Reply With Quote
 
 
Reply


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



All times are GMT -4. The time now is 10:11 PM.


Copyright 2006 - 2017 F150Forum.com
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: