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  1. Noobie Bronco Tech Questions. Flame free zone!
    1990 XLT with auto and 351W. Buddy has been running pretty well the past few months, but yesterday he stalled out on me in the worst possible place. Center lane, middle of a major 6 lane commuter bridge, rush hour... Traffic was heavy, we were moving along in little 5mph stretches. Temp good...
  2. 1980-'96 Bronco Tech
    Long story short, had crap idle, 14-15lbs of vacuum, and smoke test showed smoke pouring out of the tps and upper shaft spring area. I've disassembled the throttle body and it doesn't look like there's anything serviceable other than the two bearings. I imagine the brass shift normally seals...
  3. Noobie Bronco Tech Questions. Flame free zone!
    Hello everyone, I’m getting a loud vacuum leak type of noise on my 1993 5.8 that goes away when I give the truck throttle. I’m not sure if it’s actually a vacuum leak, just sounds a lot like one. I can’t find any leaks anywhere, anyone got any ideas?
  4. Noobie Bronco Tech Questions. Flame free zone!
    1990 XLT, 5.0 Symptom: High engine rev constant at (1400 rpm) when putting bronco back in park after driving, when driving idle is perfect at 650 rpm. After engine is warmed up though, stopped at a light i do get random surging small but noticeable and today it just stalled on me at a light...
  5. Noobie Bronco Tech Questions. Flame free zone!
    I have been chasing down an high idle problem that I have worked down to a vacuum leak. I did a smoke leak test and found that I have smoke coming out of the valve cover on the passenger side, in between the last 2 fuel injectors. I think its around the valve cover bolt but can't really tell...
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