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  1. 1980-'96 Bronco Tech
    So as the title says the engine RPM will jump up and down in 4th gear typically while I'm cruising around 55mph. It'll go from around 1700rpm up to 2200rpm and back down repeatedly usually until I slow down, speed up, or force it to shift into 3rd. Any ideas? I'll try pulling the codes later...
  2. 1980-'96 Bronco Tech
    So I've got an interesting problem, when my transmission shifts down out of overdrive normally (i.e. by not pushing the overdrive button) it shifts just fine and smooth but when using the button it shifts down really hard and there's a noticeably loud thunk when it finally shifts down. Recently...
  3. 1980-'96 Bronco Tech
    I have a 1995 Bronco with an E4OD trans that keeps blowing the #5 fuse. It will drive for a little with a new fuse in it but will eventually blow. When it blows i lose my speedometer and reverse lights then it slam shifts into second gear, and my overdrive light starts flashing rhythmically. Any...
  4. Noobie Bronco Tech Questions. Flame free zone!
    Bought a 94 Eddie Bauer today, first FSB though I had a BII many years ago. Plan to keep very close to stock and slowly bring her back to what she was in 1994. Starting with a 5.8 with just over 100k miles, body and chassis in decent shape for the northeast, but (there's always a but...) the...
  5. Noobie Bronco Tech Questions. Flame free zone!
    I've had the pan in my garage forever and just needed to get this done so I had a shop install my new deep trans pan. Seemed fine, got home and noticed a small leak at one of the bolts. He said it was torqued to spec but to bring it back and they can tighten it a little more. The tech was...
  6. 1980-'96 Bronco Tech
    This started a long time ago. Intermittently it would start slamming into gears at about 3 or 4 times the normal shift RPM. Limp mode I believe it is. Shifting by pressure rather than ECU control. And would throw a speed sensor code. After sitting for a while it would again shift normally...
  7. 1980-'96 Bronco Tech
    First post on here. I usually just read but I can't find any info on my specific problem. I have a 1994 bronco with the 5.0 and E4od. The engine has about 200000 miles on it and I've been thinking about replacing It with something fresher. I am buying a inline 300 from my cousin that has 500...
  8. Noobie Bronco Tech Questions. Flame free zone!
    So I’ve been reading all over this trying to figure out my problem. It shifts great manually but when I put it into drive it won’t shift into second until 3000 rpm and drops into gear hard. When I push the pedal to floor and it tries to downshift it just revs up and doesn’t drop down into gear...
  9. Noobie Bronco Tech Questions. Flame free zone!
    Hi all, I’m new to this forum so please excuse any mistakes. Anyways getting to the point, I have a 1990 Bronco with the 5.8 and E4OD. The wiring in the truck is pretty screwed up because the previous owner was pretty much electrically illiterate. I have been going through the wiring and fixing...
  10. Noobie Bronco Tech Questions. Flame free zone!
    So maybe I'm an idiot. Don't know yet jury is still out. Replaced the rear main on my 92. 5.0 with the E4OD. I replaced the the gasket on the transmission pan while I was at it. Refilled the transmission with fluid. The torque converter never really got drained. And what I found said 10 quarts...
  11. Noobie Bronco Tech Questions. Flame free zone!
    E4OD or AOD, which is better and why? Ready. Go!
  12. Noobie Bronco Tech Questions. Flame free zone!
    Hey guys, I've searched this forum and found several helpful discussions on this and it's potentially helped my problem. My 94' Bronco stalls out when put into Drive and 2nd gear. 1st, N, and Reverse all work fine. I ran codes and got a 629. Which indicates solenoid did not change state...
  13. 1980-'96 Bronco Tech
    Hi thanks for looking, I’ve got a 93 bronco 5.8 with an E4OD. Bought it from a gal who said trans was leaking from inspection port. Found plugged trans cooler lines and assumed front pump seal Must’ve gotten hot and let fluid past it. I dropped the trans and replaced both The large O ring style...
  14. Noobie Bronco Tech Questions. Flame free zone!
    Hey guys, I'm new and this is my first post. I bought a 94 bronco xlt in February for $1400 and It was ran great for the last 6 months. I would randomly have issue not being able to start the car until I jiggled the shifter so I re-pinned and replaced the mlps based on a post I found on here...
  15. 1980-'96 Bronco Tech
    Hi thanks for reading and any positive suggestions/opinions. I’ve got a ‘93 with a 351w and an e4OD. Bought it from a gal who said the trans was “bad” because it was leaking fluid out of the inspection plug. She bought a new car the next day and didn’t even consider taking it in. Anyways I...
  16. 1980-'96 Bronco Tech
    New member here. It’s a 1995 Bronc Eddie Bauer with the 5.8 and dreaded E4OD. I destroyed the transmission on a wheeling trip and recently (less than 500 miles) had the transmission rebuilt. New torque converter as well and it’s going into limp mode. Shifts off pressure instead of elec solenoid...
  17. 1980-'96 Bronco Tech
    Good evening! I have a situation that maybe you can help me with. I have a 94 Bronco. It was born with a 5.0 and somebody swapped it to a 5.8 liter. I need a ECM for a 5.8 and the company I would like to use needs a 5.8 L Vin to program it. I logged on to ask for suggestions and noticed that...
  18. Noobie Bronco Tech Questions. Flame free zone!
    Hey what’s up guys, I have a 1995 bronco Eddie Bauer edition with a E4OD auto trans with 193k original miles and was hoping someone could help me figure out why this happens. So like the title says it occasionally shifts really hard from 1st to 2nd and when I put it in reverse it shifts hard...
  19. 1980-'96 Bronco Tech
    1995 5.8 E40D 4wd yada yada Trans harness has “power wire” spliced into EPC power wire, showing EPC circuit fault on test. Can’t find an ECM pin diagram to check or run new wire. Also experts.....how does that circuit work? Someone had done that before I owned the truck, and now I can’t even...
  20. 1980-'96 Bronco Tech
    Wasn't SLAM shifting or LIMP mode - I'm familiar with that. Im thinking the powertrain relay started sticking? OR another wire starting to get insulation rubbed off but I didn't blow any fuses?! I have danced with shorts on my truck and once you find them, fix it - new fuse and life is good...
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