......Need help please.......

[berniesouthunt]

Hey there guys,
I was hoping that that someyone knows of the grounding location for the rear running lights on an 90 F-350 4x4. THX Guys, Bernie

 

[berniesouthunt]

Anyone??

 

[flareside_thun]

Shouldn't be too hard to trace em but most likely they're bolted into the bed sheetmetal.

 

[berniesouthunt]

I am looking, the wiring is covered by a sheath, I was hoping somebuddie knows a more localized location. But thank you for the replie, I am at work till 5 am, and would love to have running lights on the way home.

 

[OLDBULL8]

The ground wires are either black or white. It's 2AM or I'd go out and look at my 90. Bed time for me.

 

[Simp5782]

Mine on my 85 is about 3 inches behind the fuel selector valve on the inside of the frame from the factory. I relocated mine to the rear part of the frame when I rewired.

 

[berniesouthunt]

Thanks guys I will go out and take a look.

 

[Simp5782]

Just get your test light and hook to a power. find which one is the ground coming off of your lights and you can run a new wire and ground it thru your 7blade trailer hitch connector. its a white wire running into the back of the connector.

 

[berniesouthunt]

Guys this thing is *****, I found the running light wire along the rail, I found the white grounds at the end of the frame on the drivers side. Behind the rear tank the is a couple of what looks to be oem connectors, after the big connector the wire went dead ( no juice) ok easy enuff I will run a jump line to bypass the conector on the one wire. (no go) after I did that I still have no juice, So I go back to were I first spliced it ( before the wire harness) and theres juice. Its like theres just enuff volts to turn on my testlight, I thought this would be a no brainer, ( boy i was wrong ) I also don't have an amp meter here at work tonight, I just want to be somewhat safe on the ride home in the early morning. THX

 

[berniesouthunt]

Well its now 2:30am I got the jumper wire to work for now ( temp fix ). I have lights for the ride home in the morning. THX for all the help with the trucks, if not for the forum I might be riding in a differen't rig. THX again, Looks like the culprett was a falty OEM plug. I bypassed it for now with a piece of wire. Alittle rigging never hurt anyone, well I take that back, anyway its fixed FOR NOW, till I get a chance to properly fix that thing. THX AGAIN. Bernie