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Topic: headlight problems (Read 1167 times) previous topic - next topic

headlight problems

well I've had this problem since I bought Raptor in Oct. '04. The lights always flickered while the ignition was on...my voltmeter went bananas, but when I took out the headlights it all stopped...any clues? Also I found one wire that was maybe factory splice pink or red wire with stripe that goes to the lights either the high or low beam...both lights off the same wire....my ground wire from the solinoid to the block was had...other than that I dunno
'83 Cougar *the never ending project* warmed over 306 v8,c4,8.8 posi with 5 lug conversion
'91 mustang strictly street-in progress
'00 f150 7700-Mean Green: jet stage 1 chip,ported upper intake with 1" spacer,'04 Super Duty intake with injectors,summit racing short tube headers with true 2.5" duals with smithy's glasspacks!

headlight problems

Reply #1
Your alternator might have a dead phase, or your voltage regulator might be wonky, and the problem might not be showing up until the alternator is under load...
2015 Mustang GT Premium - 5.0, 6-speed, Guard Green - too much awesome for one car

1988 5.0 Thunderbird :birdsmily: SOLD SEPT 11 2010: TC front clip/hood ♣ Body & paint completed Oct 2007 ♣ 3.55 TC rear end and front brakes ♣ TC interior ♣ CHE rear control arms (adjustable lowers) ♣ 2001 Bullitt springs ♣ Energy suspension poly busings ♣ Kenne Brown subframe connectors ♣ CWE engine mounts ♣ Thundercat sequential turn signals ♣ Explorer overhead console (temp/compass display) ♣ 2.25" off-road dual exhaust ♣ T-5 transmission swap completed Jan 2009 ♣

headlight problems

Reply #2
got a new alt. and the voltage red. is on the back I believe...if so that is new
'83 Cougar *the never ending project* warmed over 306 v8,c4,8.8 posi with 5 lug conversion
'91 mustang strictly street-in progress
'00 f150 7700-Mean Green: jet stage 1 chip,ported upper intake with 1" spacer,'04 Super Duty intake with injectors,summit racing short tube headers with true 2.5" duals with smithy's glasspacks!

headlight problems

Reply #3
hmm your regulator should be on the right fenderwell behind the battery
One 88

headlight problems

Reply #4
Quote from: CougarSE
hmm your regulator should be on the right fenderwell behind the battery


5.0 cars from '86 have the internal regulator alt..

 

headlight problems

Reply #5
for some dumb reason I thought he had an 84,  guess I should have checked his name! lol
One 88

headlight problems

Reply #6
I realize this might sound stupid,but what about the ground strap between the engine and firewall?I did an engine swap in a tbird in the past and had a few different light problems,until i replaced the ground strap.