• Just a reminder that you won't be able to start new posts or reply to existings posts in the Archive forum.

    This is where all the old posts go so they can still be used for reference and searched.
  • Welcome to ClassicBroncos! - You are currently viewing the forums as a GUEST. To take advantage of all the site features, please take a moment to register. It's fast, simple and absolutely free. So please join our community today!
    If you have problems registering or can't log into your account, please contact Admin.

Headlights went out

T

teknalee

Guest
They've been working fine forever.... last night i turn them on.. start up my truck.. then right after i start it a i think i saw a small blue flash then just the headlights went out ?:? i drove home with high beams on for 2 hours :eek: oooo that pissed alot o people off :eek: anyways, any ideas?
 

lars

Contributor
Been here awhile
Joined
Jun 29, 2001
Messages
3,333
Loc.
NorCal flatlands
Hmm... The dash switch won't be the culprit. It just supplies electrons to the hi/lo beam switch and doesn't know whether they are going to the hi or lo beams. Look at the filaments- are the low beam filaments broken? If so, it could be that you've got alternator/regulator troubles that caused a voltage spike. Kinda unlikely that both bulbs would fry at once, though I suppose it could happen. If the bulbs are good I'd look at the hi/lo beam switch. You can trouble shoot that with a voltmeter. With the headlights on, the wire coming from the headlight switch will be hot and show 12 volts regardless of switch position. Check for 12 volts on the high and low beam positions, if you don't get 12 volts on the low beam wire the switch is toast. New ones are usually in stock at Napa.<br><br>Hope this helps...
 

74bronc

Bronco Guru
Joined
Jul 28, 2001
Messages
3,736
yep, most likely the high beam switch on the floor. Exact same thing happened to me last year. No problemo!
 
OP
OP
T

teknalee

Guest
so what needs to be done? (im pretty dimwitted when it comes to this stuff :'( )
 

wildbill

Old Bronco Guy
Joined
Jun 29, 2001
Messages
6,890
8) 8) 8) Parts house about 6 or 7 $ and you get a new one 2 bolts and a plug and you will be good to go good luck. :D :D :D Bill 8) ::) :p
 

edjolly

Sr. Member
Joined
Aug 23, 2002
Messages
357
Loc.
Denver Colorado
I have had two headlights blow at the same time before. The blue flash is something of a giveway--it did come from the headlights didn't it? That tells me they blew. At less than 10 bucks apiece, replace one and see if thats it, or you could ohm the element and not gamble the dough.<br><br>Ed<br>
 
Top