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I posted on here a while ago about this truck and how I came about purchasing it 2 hours from home at night and thought that it was time for my thread on it which could very well become a full build. I’ll be picking the truck up tomorrow afternoon and when I get it home there’s a few issues I’d like to address.
1. the lights aren’t in the greatest shape. I’ve got fog lights (separate system) that work and one taillight comes on when I pulled the switch, this means that something is not how it should be. I’m going to assume the second tailight bulb is out but I can’t figure out why I wouldn’t have running lights or headlights?
2. Needs an oil change, the 300 inline has had the same oil in it since the old owner bought it over a year ago. anybody have the part number for the filter through Napa? Truck hasn’t been driven much.
3. does anyone have a diagram for the radio wiring colors?
ill post better pictures of the truck once I get it home, till then if you’d like to see the truck check out my other thread from a few days go on here.
Radio power will be yellow, for switched 12V+, and light blue with a red stripe, for ≤12V+ from the gauge light dimmer, for the radio dial. So look for those two sharing a grey plastic connector.
Tail light problem first check is grounds. Remove the tail light lenses and you will see the ground wire on each side screwed into the bed. Front grounds should be on the radiator support easily visible as you open the hood.
I like to dremel the paint + whetever else there is down to shiny metal around where the ground screw attaches. You can use sandpaper. Get some star washers from your shop and screw down your 4 tail/turn signal grounds.
If this doesn’t fix the tail light problem then at least you know that you have a good ground base when you go to plan B.
Tail light problem first check is grounds. Remove the tail light lenses and you will see the ground wire on each side screwed into the bed. Front grounds should be on the radiator support easily visible as you open the hood.
I like to dremel the paint + whetever else there is down to shiny metal around where the ground screw attaches. You can use sandpaper. Get some star washers from your shop and screw down your 4 tail/turn signal grounds.
If this doesn’t fix the tail light problem then at least you know that you have a good ground base when you go to plan B.
Originally Posted by JohnBOV43159
Tail , turn and running lights have these grounds in common
Okay, the truck is home! Obviously once it's in the shop I notice a few things that were not seen before. So the PO did a power steering conversion with a new gearbox from rock auto, did the work himself. While unloading I noticed there is a large amount of play in the steering but suspension seems solid. What's the best place to look for wear and tear on the steering system and any advise on fixing it? Otherwise I've noticed a healthy ding in the back of the cab and front of the bed. The headlights decided to work also but still only one tailight and no marker lights. Hmmm, maybe new bulbs? pulled a tailights and noticed the one not working has led installed. Going to break out the test light tomorrow. Plan as of now is to get the truck to a daily driveable point, mainly from school and back to keep the miles down on the powerstroke.
Finished rebuilding taillight wiring harness, the PO had spliced in for trailer lights and after pulling it all out I'm not surprised the lights didn't work correctly. So I cut the harness at the front of the bed and ran new wire up to the pigtails. The bed is rusted beyond being useful so not sure if I replace the pig tails and make it 100% functional or wait until I change beds and use some of the wiring from the other truck. also began trying to figure out why the inline 6 won't idle very well and when the throttle is bumped it basically chokes up. Choke is being held open while running. Going to replace plugs tomorrow along with cap and rotor. When I go over any bumps in the truck the lights flicker (headlights and interior), I'm thinking bad ground? Any advice on this would be great, thanks.
The flickering lights sound more like a bad connection somewheres.
You can set the EEC on newer Fords to go into wiggle mode, and be able to test or check for a bad wire or loose connection. Go under the hood and find your EEC diagnostic connector and... - oh wait, scratch that...
What you can do on an old truck is to turn on the lights in a dark enough setting where you can see what the lights are doing, no matter where you are working on/in the truck. Then just start wiggling wires and switches until you see the lights flicker, and you will have found your wiring fault.
12-17-2018, 01:22 PM
