Loss of electrical power
1990 Ford F-150

Loss of electrical power

(1990 Ford F-150)
my friend has a 1983 ford F150, he was driving and it just shut down. It has good battery voltage 12V or higher. He also has no headlights either. Changed solenoid and ignition swicth. Tested all fuses, no power to any not even a hot constant. Would appriciate any and all input!
1 answer & 3 comments
Popular Answer
on April 30, 2011
When you changed the electrical ignition switch in the steering column, did you check the wiring connector to make sure that it was not melted or damaged? Any burnt terminals?

Do any of your dash lights or gauges light up?
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on May 01, 2011
yes, we did check terminals also the back of the fuse panel no signs of burn or extreme heat. there are no dash lights or anything.
on May 01, 2011
I would start at the battery and move through the cables to the starter switch/relay and check to see where the power loss occurs.
on November 24, 2014
To whom it may concern,Im very sorry to bother you but I have a question.I was driving down the interstate in my 1999 Ford F150 when suddenly the lights and radio shut down but it still kept driving but then it also shut down? I called 911 the cops came and pushed me to a parking lot.I tried turn it on but nothing happened no lights nothing then after about an hour I tried it again and it started shortly but then shut down again.Then about 2 hours or so while waiting for my ride I tried it again and it started but I noticed the lights were weak but I told my ride just follow me an lets see how far it goes but then I decided to stop an leave it at the parking lot so anyways what could it be???? Im thinking its the alternator or battery what do you think PLEASE TELL ME???
General Diagnosis
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on April 30, 2011
When you changed the electrical ignition switch in the steering column, did you check the wiring connector to make sure that it was not melted or damaged? Any burnt terminals?

Do any of your dash lights or gauges light up?
Sign in to reply
on May 01, 2011
yes, we did check terminals also the back of the fuse panel no signs of burn or extreme heat. there are no dash lights or anything.
on May 01, 2011
I would start at the battery and move through the cables to the starter switch/relay and check to see where the power loss occurs.
on November 24, 2014
To whom it may concern,Im very sorry to bother you but I have a question.I was driving down the interstate in my 1999 Ford F150 when suddenly the lights and radio shut down but it still kept driving but then it also shut down? I called 911 the cops came and pushed me to a parking lot.I tried turn it on but nothing happened no lights nothing then after about an hour I tried it again and it started shortly but then shut down again.Then about 2 hours or so while waiting for my ride I tried it again and it started but I noticed the lights were weak but I told my ride just follow me an lets see how far it goes but then I decided to stop an leave it at the parking lot so anyways what could it be???? Im thinking its the alternator or battery what do you think PLEASE TELL ME???

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