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  1. IAC Spacer Kit yields high idle at 1200RPM

    Noobie Bronco Tech Questions. Flame free zone!
    We received our new Motorcraft IAC and installed it. We also installed the IAC Spacer Kit. We repaired the damaged IAC mounting threads with 6mm x 9mm Time Serts. All Throttlebody, IAC, and upper intake gaskets were replaced. The idle with IAC installed is 1200 RPM. The instructions that...
  2. Throttle Position Sensor Management

    The TPS is a three wire sensor that measures the throttle plate opening and its rate of change. This sensor is a variable resistor, also called a potentiometer, that is directly linked to the throttle plate shaft. The TPS outputs a voltage directly proportional to the throttle opening. As the...
  3. Carb adjusted, still stalls under load.

    1980-'96 Bronco Tech
    Hi Bronco Tech. I introduced myself the end of last week with the post Got me a Bronco witb a problem. I got some feedback that it might be the choke and so I took it into the local tunex and had it adjusted... let's just say that I'm getting my money back. I guess it does start better, but...
  4. Idle / TPS / Upper intake questions

    1980-'96 Bronco Tech
    Couple of questions for you guys on an 86 EFI 5.0. I've been dealing with an erratic idle (revs up high for seemingly no reason, then down, then up, then decides it wants to stumble and or die) problem for quite a while now, and I'm finally fed up with it. I checked and cleaned the IAC, it...
  5. high idle, whats next? nothing changes. 91 302

    Noobie Bronco Tech Questions. Flame free zone!
    this is a 91 302 w/ E40D 4x4 4:10 axles w/ limited slip... its an f-150 with a 36xxx on the 5 digit odometer, but i dont think there are any differences that would change the diagnosis compared to a bronco we just bought it, so the history is vauge, plus the guy lied about at least 2 things...
  6. Idle Problem

    Noobie Bronco Tech Questions. Flame free zone!
    I just barely bought my bronco today it is a 1993 with a 5.8 351 and it was obvious that there was something wrong with the idle. Here is what happens I turn the beast on and it rises to about 2000-2500 RPMs and so i thought that maybe if i let it sit it will stop but it didnt so i tried to...