Question about 2001 Ford F250 Super Duty Super Cab

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Headlights went out. I replaced the switch and they still don't work.1985 ford truck . Replaced voltage regulator and headlights and it still doesn't get enough juice.

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  • Helperone May 11, 2010

    Is it the low beams,high beams or both?

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  • Master
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Try sanding the ground on the engine and battery and the ground going to the frame it is a common problem, and replace the ground cable anyway or you will burn up the alt.

Posted on Jun 21, 2009

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I went into town, turned off truck, headlights were working. Came out of store and no headlights. All the other lights, running lights, brake lights, signal lights work, but not headlights.


I guess you are saying that after you turned the ignition off, the headlights and all lights went off, but when you returned and turned ignition on all lights but the headlights came on. "a gremlin" stole my light switch? Possible, but most likely your headlight switch is bad, or the headlight relay, or if the dimmer switch makes no difference, It could be power supply or connection to the headlight dimmer relay is bad. Corrosion causes funny behavior. Clean bright metal connections make a world of difference. Follow headlight wiring back to a small box usually on the inside fender of the Engine bay. Check all connections including the ground to the frame (body metal).

Apr 06, 2015 | 1999 Ford Explorer

1 Answer

Driving lights and dash lights blowing 15 amp fuse


From your description this looks like overcharging. Check your charging system for overcharging and the wiring. A loose connection to the regulator can cause a surge in charge voltage and let out a very high voltage.

Sep 26, 2013 | Ford Cars & Trucks

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Ford focus 52 plate The front headlights don't


Switch will have to be replaced,

Nov 10, 2012 | Cars & Trucks

4 Answers

Headlights don't work unless you hold high beams


Check the headlight Relay and/or fuses - should be in the fuse panel.
GL,
Td

Oct 01, 2012 | 2004 Mercury Grand Marquis

3 Answers

Both headlights on my 1993 Geo Metro went out at the same time. I have checked the fuses and even replaced the headlights but stll both headlights do not work. All the lights work on the car except the...


have you checked for voltage at the headlight plug and ground there as well if you don`t have power then it sounds like it is the headlight switch itself,usually if it is a relay one or the other will work but the relay can stop working all together,so keep this in mind,

Mar 11, 2011 | 1993 Geo Metro

1 Answer

After replacing alternator, battery, headlights still do not work


if the battery was leaking acid from the filler caps on the battery it may have been caused by the alternator over charging (faulty voltage regulator) hence blow your light bulbs or blown the fuse check for blown fuses first,if they are OK you may have to replace the bulbs .....hope this helps....cheers

Jul 13, 2010 | 1985 Pontiac Firebird

2 Answers

LOW BEAMS NOT WORKING 2002 FORD FOCUS


Hi. i recommend a thorough inspection of the wiring harness and harness connectors that led to the actual headlights. use a volt meter to test the current flow to the connectors. pull the connectors from the back side of the headlights and test all cooper contacts inside the connectors. If the wire contacts all show voltage, this will confirm a switch malfunction. it should be replaced in this case.

Now, if one or more contacts on the wires harness fail to produce any voltage, this will confirm a faulty wiring harness. replace the wiring harness in this case.

Make sure the headlight switch is in the on position when testing the wires.

Jul 30, 2009 | 2001 Ford Focus

1 Answer

Headlights won't work Chevy K-10 Pickup


With electrical problems I always look for a bad ground wire, especially on older vehicles. Look for any wire that goes to an inner fender or the engine, there maybe a faulty relay in the circuit too. good luck, Chuck

Mar 17, 2009 | 1985 Chevrolet Chevy

1 Answer

1979 Mustang Ghia; Only Headlights won't come on


unless both headlights burnt out at once, i would say its headlight switch, or possibly the dimmer switch, if it was me instead of paying the long dollar at a parts store i would get both out of a bone yard and try it, you only be out a couple bucks if that is not it. most parts stores you can't return electrical parts.

Jan 27, 2009 | 1985 Ford Mustang

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