Why would my head lights only shut off and on every 20 seconds

Asked by Jul 16, 2012 at 01:16 PM about the 1992 Ford F-150 STD Extended Cab LB

Question type: Maintenance & Repair

1 Answer

Headlights in most cars have a circuit-breaker, as opposed to a fuse, so if there is a short in the wiring your headlights will not suddenly fail completely as with a blown fuse. The breaker heats up, shuts off the lights to prevent an electrical fire, then re-sets itself. I suggest (if you are not a do-it-your-self'er) take it to a mechanic to trace what appears to be a short.

Your Answer

Add photo

Related Questions

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 6,300
#2 dandyoun
dandyoun
Reputation 3,970
#3 tennisshoes
tennisshoes
Reputation 2,400
View All

Related Models For Sale

Used GMC Sierra 1500
1,195 Great Deals out of 58,871 listings starting at $2,495
Used Ford F-250
568 listings starting at $1,977
Used Ford Mustang
719 Great Deals out of 39,137 listings starting at $1,000
Used Ford Explorer
1,501 Great Deals out of 74,209 listings starting at $985
Used Ford Ranger
223 Great Deals out of 7,060 listings starting at $1,450

Used Cars For Sale

2017 Ford F-150 For Sale
42,820 listings starting at $17,605
2016 Ford F-150 For Sale
218 Great Deals out of 94,631 listings starting at $17,937
2015 Ford F-150 For Sale
275 Great Deals out of 8,357 listings starting at $18,891
2014 Ford F-150 For Sale
594 Great Deals out of 11,490 listings starting at $9,600
2013 Ford F-150 For Sale
820 Great Deals out of 14,819 listings starting at $7,527