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  1. 1980-'96 Bronco Tech
    I have an F350 but the engine was originally in a Bronco so I hope it's ok to post here. So I have a 1996 F350 with a 351 Windsor. The engine was swapped from a Bronco and has an OBD I connector so I suspect that the engine may be a 95 or earlier. I was driving and it just quit like it was out...
  2. Noobie Bronco Tech Questions. Flame free zone!
    Hello, first time on this website. Just bought an 84 bronco about a month ago, it started and ran in idle when I picked it up. Drove it home, idled, sometimes it almost died when letting off the gas and even when turning onto the road I'd have to hammer it to keep it going. My cousin is a...
  3. Noobie Bronco Tech Questions. Flame free zone!
    I am hoping for some help troubleshooting my hunting idle on my 1994 Bronco 5.0 with HOGO PCM. I have read all the posts I can find in a failed attempt at throwing parts at this problem. This engine runs great until the thermostat opens then begins surging between 750-1200 rpm. Start up...
  4. Noobie Bronco Tech Questions. Flame free zone!
    I have replaced my IAC and TPS about 5 months ago, I noticed a little bit of oil on the throttle plates and on the IAC but nothing crazy, I have also replaced a few Vacuum hoses and I also have a new MAF.. I guess I can replace the other Vacuum hoses but is there anything I’m missing? Newish...
  5. Noobie Bronco Tech Questions. Flame free zone!
    Good Afternoon Everyone, I recently rebuilt the engine in my 1995 Bronco (speed density) and ever since I have been having idle issues. A couple of facts about the build: 1. We reused the stock cam and crankshaft. 2. The engine builder told me he increased the compression to 9.2:1. 3. Heads...
  6. Noobie Bronco Tech Questions. Flame free zone!
    Hello there! I have a 95 Bronco 5.8l automatic truck that I just pulled out of winter storage this week. This truck is high milage (284k) Im getting around to tackling some issues that have plagued the truck for a handful of months that I have been struggling to solve. The truck has had a...
  7. Noobie Bronco Tech Questions. Flame free zone!
    I would like to hear from someone who knows more. Question is about my 1994 351W EEC-IV. The symptom is that the idling speed drops abnormally when warming up after a cold start. Specifically, it goes into closed loop at ECT 77°F and simultaneously drops to about 400rpm. It will remain on the...
  8. Noobie Bronco Tech Questions. Flame free zone!
    Hey guys, So I have been experiencing issues with my rpms sticking... It seems to just do it randomly but it'll get stuck at 1500 rpms then it'll drop down almost like its gonna quit and go back to 700 rpm I have replaced the IAC and I have replaced the throttle cable since the one I had would...
  9. Noobie Bronco Tech Questions. Flame free zone!
    So I was having a lot of issues with the trucks idle I ended up replacing the TPS and the distributor which also ended clearing my check engine light! But it was running like a charm for a little bit and now back to experiencing some issues with the way it idles. I always start the truck and let...
  10. 1980-'96 Bronco Tech
    At first my Fuel Pressure Regulator went out so I took the plenum off and everything else I needed to do to get to it, while I had it off replaced the fuel injectors, and gaskets to plenum, throttle body Egr. I also got a new iac valve and the wires to connect to it, but my truck then had a...
  11. Noobie Bronco Tech Questions. Flame free zone!
    Hello, I've visited this website multiple times but I finally decided to make an account and seek some help for my bronco. i want to apologize in advance if this seems too long I'm just trying to be as specific as possible. i have a 1989 with an efi 302 and an aod transmission. I have an...
  12. Noobie Bronco Tech Questions. Flame free zone!
    Take it for a drive for about 15 minutes around town so it can relearn idle strategies and shifting patterns. Then see if it still gives you trouble.
  13. 1980-'96 Bronco Tech
    90 XLT, 351w E4OD. So I just finished installing a MAF kit from fiveology racing, along with 36lb injectors on an otherwise stock engine (heads/cam to come). Starts up just fine, but it only runs for about 5-10 seconds before slowly dying. If I blip the thottle, it bogs and dies. If I slowly...
  14. Noobie Bronco Tech Questions. Flame free zone!
    So i been driving my baby around, fixed a lose wire for the 02 sensor, runs fine but then i noticed that my idle was slowly getting up and now on a stop light it idles at 1200 RPM 1. im going to check all my vacuum lines to make sure nothing is bad 2. i replaced spark plugs and wires 3. tps is...
  15. Noobie Bronco Tech Questions. Flame free zone!
    I have a 1990 Bronco Eddie Bauer 5.8w automatic transmission Issue 1: The truck will not start without the use of starter fluid. Ive checked spark and ignition. Everything checks out it just does not start. Issue 2: Once started with starting fluid the engine races to 1100 rpm and slowly creeps...
  16. Noobie Bronco Tech Questions. Flame free zone!
    So i been oover a year looking for a bronco and found one and got it!! really nice looking and all, great interior and super clean but ! theres 2 main problems, 1. it has a iratic idle/rough where some times the motor goes up then down then up and then down and then goes stable, i had a problem...
  17. Noobie Bronco Tech Questions. Flame free zone!
    1986 Bronco 302. I've got stalling and idle fluctuations, hot or cold. More so noticeable past high idle on start up obviously. After months of hacking down these codes, I'm left with this code 18. Reading up on it here, there isn't a clear solution and seems to be a nightmare. I've been...
  18. Noobie Bronco Tech Questions. Flame free zone!
    I just bought a 1991 Bronco Silver Anniversary with the 5.8 engine. When first started it idles fine but if I drive it at all and then put it in Park or Neutral the RPMs jump to 1500. Occasionally it won’t give me this problem. It seems to idle fine in gear when stopped. I’ve checked the IAC...
  19. Noobie Bronco Tech Questions. Flame free zone!
    My 351W with EFI I believe idles a little to High. When looking through the tech pubs I believe my engine is suppose to be 700-800 in park When first started in goes to 1700ish then with in a few seconds drops to 1200ish, no hunting surging etc.... When I put it in reverse/drive drops to 900ish...
  20. Noobie Bronco Tech Questions. Flame free zone!
    I got a 1990 ford bronco and when you turn it on it likes to idle jumping from 400 to 600 rpm but it never stalls out. I just got this truck don't know much about what might be causing it and I'd love any help
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