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paintballmaniac

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Reply with quote  #1 
I need some help figuring out why my parking lights won't turn off and why it won't start. I am working on a 1986 F-250. Anyone have any ideas on how to fix it?
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wallew

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Reply with quote  #2 

paintballmaniac,

I suspect that is TWO problems.

1.  Parking lights won't turn off - have you disconnected the lights from the switch?  I suspect that the light switch is stuck in the on position, and won't turn the light off IF it is.

2.  Truck won't start.  You are going to have to be a bit more specific than 'truck won't start'...  WHAT HAPPENS when you turn the key,
NOTHING?  Starter turns but very slowly?  You just hear a 'whirring' noise?

We will need a bit more info to trouble shoot than one.
Let us know and we will attempt to help

#1 - I would suspect a switch has gone bad  - but you could have a bad short in the bulb housing or ???

#2 - too many variables and we need some more input

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paintballmaniac

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Reply with quote  #3 
I have unplugged the switch and the parking lights stay on, and when i turn the key nothing hapens.
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wallew

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Reply with quote  #4 

pbm,

When did this situation begin?  Was it working before?  When did you notice that things changed?  Is this a project truck you recently purchased?


What happens when you disconnect the battery?  Not sure WHY the parking lights are still on with the light switch disconnected.  That means NO POWER should be going to any of the lights, yet yours are still on with no power?

This is a very strange situation.


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paintballmaniac

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Reply with quote  #5 
It began last week and was working for moths before. This has been my project truck for over a year. When I disconnect the battery the lights turn off  
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Kurganhunter

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Reply with quote  #6 
You say a project truck. Are you driving it as you work on it or is it sitting? If it is sitting, Is the battery on a charger/tender? Is it fully charged? Is the truck on jack stands? Have you checked the ground on both the parking lights and the battery. Low voltage or loose connections can cause a lot of strange things to happen
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paintballmaniac

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Reply with quote  #7 
I have been driving it and have checked all of the electrical connections
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wallew

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Reply with quote  #8 

PBM,

That is truly a weird circumstance.  SO with the battery disconnected, and the lights go off, that is a good thing.

Still not starting is  kind of strange, but not a surprise.

I suspect your ignition switch may be failing or has failed.

Given this is a 1986, it should have a computer port to plug into.  BUT it may not.  If it does, you should take it to a mechanic and have him find out if there are any error codes being generated.

If it does not have a computer plug in, perhaps have your mechanic check the ignition switch.  All power SHOULD go through that, so if it's failing it could cause these problems.

Short of  your car being possessed or haunted, I have no idea as to what is going on.  As Kurganhunter has said, loose wires and connectors can cause all sorts of issues and are difficult to chase down. 

I once owned a vehicle that was having electrical issues.  EVERYTHING LOOKED FINE.  SO I started by replacing the battery cables. They looked OK, but the wires inside the plastic sheathing were complete rusted and had all sort of resistance problems.  Once I swapped them out, I then had to chase other issues down.  IT TOOK FOREVER.  Turned out it was the firewall electrical connector that allows signals to pass through the firewall.  That plug was internally shorting out, cause the truck to stop running at the oddest times.

It failed in downtown Denver traffic on a Sunday morning and ti took a tow truck to get it back to my mechanic.  He finally figured it out, but it took forever.  Eventually after fixing it, I sold that truck  - a 77 Dodge Ramcharger.

GOOD LUCK and let us know what you find out about this problem with your truck.

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