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  1. 1980-'96 Bronco Tech
    Stats: 1986 FSB 302 engine AOD tranny My bronco's been down for a month while I'm trying to fix an electrical issue. It was running great, then died mid-drive and hasn't started since. It cranks, but doesn't even try to turn over. Using a spark tester, looks like I'm getting no spark from the...
  2. 1978-'79 Bronco Tech
    Good day all-reaching out to all the electrical wizards who may be able to assist me- I have a couple of tailgate switches still attached to some rough harnesses- without the 3 prong plugs that sit behind the tail light( just the bare wires) Can anyone please tell me the proper way if possible...
  3. 1980-'96 Bronco Tech
    Hey all, 89' XLT. RH side of engine bay, the side with the battery and start relay. This is on the left of the start relay, like in between the starter relay and the firewall. Anyone know what this connector is for? I'm looking at the diagram in the manual but can seem to pin point it. Thanks
  4. 1980-'96 Bronco Tech
    Okay, I had to take a bit of a hiatus on fixing up the non-running bronco but now I am back at it. The TL;DR is that I've got zero fuel pressure, very likely due to grounding issues. I've got a long post about the wiring issues, but I'll update that when i solve more of the puzzle. The wiring...
  5. 1980-'96 Bronco Tech
    I pulled what looks like a duraspark ignition module from my 84 bronco with a i6, and was wondering if I can hook it up to my 82 bronco with a 351w. Here is the ignition module: This is the 82, with my research, it seems to me I have a duraspark ignition coil, but I don't know lick about...
  6. 1980-'96 Bronco Tech
    Okay so I have gone through the forums and searched for my issue and the fixes of fuses and the cluster itself did not fix. I have a 1990 Bronco that I bought with Speedo, Fuel Gauge and Oil Pressure Gauges not working. Previous owner said they all went out at once. I have goes through my fuses...
  7. Noobie Bronco Tech Questions. Flame free zone!
    So I need to replace the negative battery cable on my 1989 bronco. I'm having trouble sourcing a battery cable that has the correct male grounding connector. I also need to replace female connector on the wiring harness. I found this catalog...
  8. 1980-'96 Bronco Tech
    Okay so I have a bit of a puzzle for you. Bronco: 89 XLT , hasn't been running in multiple years Problem: Zero fuel pressure at fuel rail, resulting in crank no start What I have done so far: Replaced the low pressure in tank fuel pump. Replace the high pressure on rail fuel pump. Replaced the...
  9. 1980-'96 Bronco Tech
    Hey folks! This is my first post on here. I have an '87 FS Bronco and will do an intro post later. For now, question for the folks that have upgraded to higher output alternators. I am doing a dual battery swap in the future and right now I am starting by upgrading my alternator to a 200 amp...
  10. 1980-'96 Bronco Tech
    I will start this off by describing what happned to me, I first noticed something was off when driving on the highway going around 70mph, noticed that the car felt like it was about to die and the voltage reading dropped below zero, I immiedeitly picked my foot off the gas and it recovered and I...
  11. 1980-'96 Bronco Tech
    Recently bought an 87 XLT 302 with a non-functioning ECU and the engine with a carb installed rather than the stock EFI The only gauges on the dash that appear to work are the speedo, temp and fuel* How much of a headache would this be? Is it as simple as there are ECU options built for non EFI...
  12. Noobie Bronco Tech Questions. Flame free zone!
    HI FSB! I have a '89 5.0 Bronco- It's been a vehicle to learn vehicles on, and I am certainly learning a lot. There are a couple places I feel stuck. The first is the window regulator for the driver side. The Nylon cylinders were broken last year- and I replaced them. Queue to just under 1...
  13. Noobie Bronco Tech Questions. Flame free zone!
    Im stumped. ‘93 XLT Bronco 5.8 Both windows stopped working, and the tailgate but that’s a different issue. Drivers motor works great on 12V Milwaukee, I have power at the switch and the connector for up and down but no window function when plugged it. Beyond frustrated I feel like I have all of...
  14. Noobie Bronco Tech Questions. Flame free zone!
    Hey this is my first post so I'll give a little context, I recently bought a '95 Bronco with a 5.0 302, ~150k miles. This thing was torn to shreds by a previous owner but luckily the engine runs great and the frame and body are rust free, so it's not a lost cause. I'm slowly fixing each of the...
  15. 1980-'96 Bronco Tech
    I’ve been working on the wiring for my 95 Bronco Eddie Bauer edition for a while. I’m pretty good at electrical but this one has me stumped. I had no power going to the switch from either of the 2 circuits but the window moved if I use a drill battery and some wires to the motor wires. The...
  16. 1980-'96 Bronco Tech
    I have a 1987 bronco witch the break lights not work. They rarely turn on very very briefly when the breaks are pressed down. I’m sure it’s a wiring thing. Looking at the pedal I find 2 things I have no clue about. Any information to these 2 items would be great. otherwise, If there is any...
  17. 1980-'96 Bronco Tech
    I'm renovating a stock '86 FSB. My windshield drain was full of soil & clogged and the filling of the trap resulted in a long line of rust along the bottom of the trap. To repair, I'm pulling the dash so I can access that area easier to clean & fiberglass the bottom of the trap and replace the...
  18. Noobie Bronco Tech Questions. Flame free zone!
    I've decided to rewire the entire electrical system in my bronco due to years of others jerry rigging everything (wish me luck!). As I've pulled things off, I've been buying new parts while I have things taken apart seeing what could use replacing. I've attached a picture of a vacuum valve...
  19. Noobie Bronco Tech Questions. Flame free zone!
    So I have a 1991 Ford bronco 5.0 302 I recently took my battery out to charge it and replace the terminals. After a long day I ended up putting the battery in backwards. After replacing alternator, fusible links, ign. module, fuel pump, starter solenoid, batt terminals, and computer yet to no...
  20. Noobie Bronco Tech Questions. Flame free zone!
    Guys and gals... I'm in big trouble. I have a 1987 with the 4.9 straight six and a 4 speed Tremec 4 speed manual transmission. I bought this truck a couple years ago and have had electrical issues since day one. I bought it as a project truck and was able to do a bunch of work on it myself, but...
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