Truck has no power when I roll down drive window

[Jojomular14]

So I have a 1986 ford bronco with 302 no mods at all. All stock. My problem is when the truck is running and idling fine and I go to roll down power window on driver side while truck dies. I have no interior light no power what so ever. The only way to get truck to start again is to disconnect better terminals wait a while like 30 min then reconnect terminals and then I have power. Any ideas on why it's doing this? Also why would the window switch **** the whole truck. I have changed solenoid battery starter all that good stuff is recently new. Anyone else had this kind of problem. Can a bad window switch **** the whole truck?

 

[Jojomular14]

Also truck start right back up fine and runs fine til I touch window switch

 

[Seabronc]

Well that is a new one :-&  When you restart the truck, is the window back up? or is it still down? 

>-

 

[Jojomular14]

I now have the window up

 

[miesk5]

Yo Jojomular14,

Welcome!

If you just purchased this 86, see if the fuse blockmcircuit breaker has been replaced with a jumper wire, etc.

Or if it hangs closed and gets very hot when operating the window.

Fuse Block Diagram in an 86 w/ Nomenclature



I don't have a wiring diagram.

 

[Jojomular14]

Ok I'll try checking that out

 

[Jojomular14]

How do I upload photos??

 

[miesk5]

Yo,

To post a pic from your PC, TABLET, etc., just below the reply box in lower right corner, click More Reply Options

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or click, Try our advanced uploader (requires Flash 9)

 

[Jojomular14]

Here's what my fuse box looks like. Also could it possibly be a bad eec relay??

 

[Jojomular14]

Fuse box

 

[miesk5]

Yo,

The 20 amp circuit breaker, next to flasher looks ok. No jumper wire evident.

EEC Relay Location in an 86; "...the 86 must have been a change out year in regard to the EEC Relay. On some you will find the fule pump relay and the EEC Relay under the hood, driver-side by the master cylinder/vac. On some 86's (like mine) you will find the EEC Relay in the cab to the right of the gas pedal...sorta where your ash tray would be.

Tan (some call it brown) = EEC Relay

Green = FP Relay..."

Source: by Xris

EEC Relay Wiring Diagram in an 86

http://www.supermotors.net/registry/media/648663_1

No thumbnail because supermotors is dead slow again

Source: by Xris

Check for socket corrosion, loose wiring etc.

I can not see any coorelation between window & ignition circuits other than a previous owner really hacked the wiring.

Did you just purchase the Bronco?

 

[Jojomular14]

Yes I just bought it and the wiring doesn't look to good under the hood but I did check them all under the hood and make sure all contacts were solid. does look good under dash tho and I drove it everyday for a month before it did this and always ran fine it just all the sudden happened

 

[miesk5]

Yo,

Ok.

Only suggestion now is to check the EEC Relay, socket and wiring, because you mentioned the relay. Why did you mention it?

Next, back to basics, check battery voltage, posts, connectors, grounds etc.

Is ignition key cylinder ok; is it working in all postions such as start, accessory, etc?

EDITED TYPOS. SORRY, WAS VERY TIRED.

 

[miesk5]

Yo,

Ok, got some sleep.

Back to checking grounds.

Starter Relay on passenger side inner fender Ground Wire Addition & Location Video in an 86

Source: by JKossarides ("The Bronco", Jean) @ http://www.supermotors.net/registry/media/782810

Ground is the relays body so any corrosion, grime between it and fender is not good.

 

[Jojomular14]

Battery is good terminals are good also I can't check cylinder positions because truck is completely dead. Guy I bought it from said it was new but the key doesn't go in there like I think it would if it were new.

 

[miesk5]

Yo,

Ok, I thought it had power again after you wrote "I now have the window up". I should have asked.

Can you use a cheap multimeter to check for battery voltage at the battery, at the starter relay, fusible links at the relay, fuse panel, etc?

A battery that is fully charged produces 12.6 volts

http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=27271

Start wiring diagram

http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=27260

Charging

http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=27262

Fuel

Fusible Links;

B Location in Wiring Diagram in an 86, Fusible Link B to the fuel pump relay & Link Green, 14 gauge from battery to alternator



Source: by Xris

 

[Jojomular14]

No it was down when it died and then it came back to life for some reason I rolled it up and then turned the lights on and it died again. Sometimes it has power but like today it had power but then I close the hood and lost power. It's like it works for a min til I do something like touch the window switch or headlights it's really weird

 

[Jojomular14]

I have done all those meter reads the battery fuseable links and everything are good under the hood and coming off the solenoid

 

[Jojomular14]

I bought a code reader and it should be here in a couple days so I'm gona try that and see if I can get it to give me a code reading