Odd battery/electrical issue - Need some help
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Junior User
Joined: Jan 2015
Posts: 68
Likes: 0
From: Huntington Beach, CA
Odd battery/electrical issue - Need some help
Hey all,
So when I turn my truck off, the battery stays lit up. I've replaced the ignition switch, and we've examined the solenoid, voltage regulator, and the alternator.
We can't seem to find what could keep the battery on with the key in the off position.
Any help or direction is much appreciated, thanks!
So when I turn my truck off, the battery stays lit up. I've replaced the ignition switch, and we've examined the solenoid, voltage regulator, and the alternator.
We can't seem to find what could keep the battery on with the key in the off position.
Any help or direction is much appreciated, thanks!
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Junior User
Joined: Jan 2015
Posts: 68
Likes: 0
From: Huntington Beach, CA
Engine is off, but truck stays on - as in my heater is stilling running, I can turn the lights on and off, and the gauges are still backlit. As if the key was in the ACC or On position.
Lead Driver
Joined: Aug 2003
Posts: 6,305
Likes: 18
From: Boulder Creek, Ca
Just tossing out few idea's??
Perhaps poor ground in the stating system circuit?
Any modifications to electrical sys.; i.e., electronic ignition?
Starter Relay connections wired correctly and secure?
'Alt' gauge or idiot lights?
Was the key assembly replaced, or both switch and key?? If the key assembly is not installed correctly it's possible for the engine, or accessories to run with the ign. off.
Posting link from Jim Osborn Reproduction Wiring manual for 65 F100-F750, which can be purchased from most Ford Part Supplier's> J.O. charges $7, plus shipping. Click on pic and should slightly enlarge?
http://i300.photobucket.com/albums/n...e421c00951.jpg
http://i300.photobucket.com/albums/n...reDiagP5-1.jpg
http://i300.photobucket.com/albums/n...reDiagP8-1.jpg
Perhaps poor ground in the stating system circuit?
Any modifications to electrical sys.; i.e., electronic ignition?
Starter Relay connections wired correctly and secure?
'Alt' gauge or idiot lights?
Was the key assembly replaced, or both switch and key?? If the key assembly is not installed correctly it's possible for the engine, or accessories to run with the ign. off.
Posting link from Jim Osborn Reproduction Wiring manual for 65 F100-F750, which can be purchased from most Ford Part Supplier's> J.O. charges $7, plus shipping. Click on pic and should slightly enlarge?
http://i300.photobucket.com/albums/n...e421c00951.jpg
http://i300.photobucket.com/albums/n...reDiagP5-1.jpg
http://i300.photobucket.com/albums/n...reDiagP8-1.jpg
Laughing Gas
Joined: Dec 2009
Posts: 938
Likes: 0
From: Bishop, CA
Uh, maybe I'm missing something, but the lights...exterior and dash lights should work even if the key is on the counter in the kitchen.
Heater fan may be hooked up to a hot wire, who knows what's been done to the poor thing since '65? Heck, when I bought my truck the turn signals were hooked up to a hot wire and would flash anytime you hit the switch with your knee exiting the truck.
Heater fan may be hooked up to a hot wire, who knows what's been done to the poor thing since '65? Heck, when I bought my truck the turn signals were hooked up to a hot wire and would flash anytime you hit the switch with your knee exiting the truck.
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Thread Starter
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Junior User
Joined: Jan 2015
Posts: 68
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From: Huntington Beach, CA
Uh, maybe I'm missing something, but the lights...exterior and dash lights should work even if the key is on the counter in the kitchen.
Heater fan may be hooked up to a hot wire, who knows what's been done to the poor thing since '65? Heck, when I bought my truck the turn signals were hooked up to a hot wire and would flash anytime you hit the switch with your knee exiting the truck.
Heater fan may be hooked up to a hot wire, who knows what's been done to the poor thing since '65? Heck, when I bought my truck the turn signals were hooked up to a hot wire and would flash anytime you hit the switch with your knee exiting the truck.
I'll check on the heater wire though. It's not the dash lights staying lit up, it's the aftermarket gauge lights (oil pressure, engine temp, voltage)
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Junior User
Joined: Jan 2015
Posts: 68
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From: Huntington Beach, CA
All I've done is replace the ignition switch when the problem first appeared. Besides that, I've also cut out the old radio that was installed... any chance something there is giving me my issue?!
Laughing Gas
Joined: Dec 2009
Posts: 938
Likes: 0
From: Bishop, CA
Sounds to me like you got the power wire to the fan and the lights to the aftermarket gauges accidently hooked to a hot wire.
Both of those can be easily traced from the source back to where they're hooked up while laying on your head under the dash.
Both of those can be easily traced from the source back to where they're hooked up while laying on your head under the dash.
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