flickering headlights
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Posting Guru
Joined: Jan 2001
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From: S. Mississippi
flickering headlights
my 1982 F-150 XLT has a headlight problem, i've replaced the dimmer switch, headlight switch and replaced the connectors on the headlights themselves.. i want to know if the headlights themselves are bad? or is it my wiring *oh joy something else to fix 
* i really need to know because i start my job this coming wensday and i have to drive at night.. any suggestions. Oh btw just in case its important its a 351C.
* i really need to know because i start my job this coming wensday and i have to drive at night.. any suggestions. Oh btw just in case its important its a 351C.
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flickering headlights
if they appear to go on and off (instead of a slight flickering) then it could be a short..the head light circuit breaker is designed to give you intermitent lights on for safety reasons.
if it flickers like a blink of the eye..then check for a bad ground wire at each hdlight..
or of course..a bad relay..guess you did that tho...wish i could see your changes here...
can you probe the wiring with a light or vom?
and.. a bad ckt bkr
if it flickers like a blink of the eye..then check for a bad ground wire at each hdlight..
or of course..a bad relay..guess you did that tho...wish i could see your changes here...
can you probe the wiring with a light or vom?
and.. a bad ckt bkr
Thread Starter
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Posting Guru
Joined: Jan 2001
Posts: 2,357
Likes: 3
From: S. Mississippi
flickering headlights
i'm gonna get a voltmeter and other things together in the morning and check them.. i hope its just a ground so i can reground them and leave it be.. hope its nothing major cuz just today i replaced the timing chain and don't really feel up to tearing it apart again.. i'll let you know what i find
1982 F-150 XLT
1987 RANGER 2.3L
1982 F-150 XLT
1987 RANGER 2.3L
Fleet Mechanic
Joined: Aug 2000
Posts: 1,504
Likes: 1
From: Texas
flickering headlights
First off, does your truck have an external voltage regulator. Most of the newer models have the regulator made in with the alternator. Have your charging system checked. Then look at replacing the voltage regulator. Found this problem on my 66 Mustang, it kept dying out, and wouldn't restart without a jump. Tightened the wires on the voltage regulator, and all went fine. Eventually I replaced it though.
1988 F-150, SWB, 5.0 EFI (formerly 4.9 EFI), M5OD 5 speed, 3.08 gears, Summit shorty truck headers, Custom built Flowmaster exhaust system. Force 4 LP6000 lightbar, Federal signal PA-300 100 watt siren, Icom IC-V100 50 watt mobile radio.
=======================================
1965 F-100 (just purchased 1/18/01), SWB, 390, C-6 auto. Dual exhaust, Not much else to do to it.
Can see both below.
[link:www.geocities.com/hotrodford_88/|Hotrodford_88's Webpage]
1988 F-150, SWB, 5.0 EFI (formerly 4.9 EFI), M5OD 5 speed, 3.08 gears, Summit shorty truck headers, Custom built Flowmaster exhaust system. Force 4 LP6000 lightbar, Federal signal PA-300 100 watt siren, Icom IC-V100 50 watt mobile radio.
=======================================
1965 F-100 (just purchased 1/18/01), SWB, 390, C-6 auto. Dual exhaust, Not much else to do to it.
Can see both below.
[link:www.geocities.com/hotrodford_88/|Hotrodford_88's Webpage]
Thread Starter
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Posting Guru
Joined: Jan 2001
Posts: 2,357
Likes: 3
From: S. Mississippi
flickering headlights
after much searching and a little beating my head against a wall i discovered my headlight problem.. the plugs for the headlights have loose wires in them.. i fixed these and the headlights no longer flicker... i appreciate the help folks
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Posting Guru
Joined: Jan 2001
Posts: 2,357
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From: S. Mississippi
flickering headlights
unfortunately i found out this morning that it has been my headlight switch for god knows how long and i almost wiped out my truck against a semi... but fortunately i got out of the way fast enough.... i'm gonna change this thing tomorrow...
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