Question about 1993 Ford F250

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I have a 92 ford f250 that idles up then down in park, but if I rev the motor up a little it shows a steady idle, dont know what the problem is.

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Idle selnoid moter needs changed

Posted on Jun 28, 2010

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2004 ford f150 5.4 3v idles rough but clears when rev engine up


Does you f 150 have electronic throttle control ? An does it have Variable Cam Timing (VCT) - if it does have Variable Cam Timing (VCT) it doesn't have an EGR valve ! What type scan tool did you use to pull the code with ? My FORD factory service information does not show that code for A 2004 F - 150 5.4 L 3 valve engine !

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I have a Ford 1990 f250 xlt 7.5 When starting revs up and down slowly then dies sometimes, why?


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Ford f250 runs ruff and will not idle


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I have 1990 ford f150 5.8 liter it idles high when in park and idles about 1200 rpm when in gear and sometimes surges up and down. i have clean the idle control and check showing 12.5 ohms still won&#


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The computer controls idle speed by how much air is allowed into the intake. The idle control valve could be sticking even tho you have cleaned it, or have a faulty motor.

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My 1992 ford exploer will not hold a steady idle. I replaced the throutle positioning sensor.when i start it, it revs to 2 rpms then cuts of and sometimes it runs but the rpms go up and down for about 1 to...


  1. baring a major vaccumm leak
  2. idle speed control motor is probably sticking
  3. it is a 2 wire soleniod with an air shuttle which allows air to bypass the throttle plate.
  4. when acting up at idle tap the idle valve repeatedly with a small hammer.
  5. does idle change?
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mcdevito75 here, Sounds like the idle speed motor, Ford is known for these idle speed motors going bad, in the later stages the car races like crazy. have your repair shop check this idle speed motor and change it.

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Fuel


Your ford has power assisted breaks this power is delivered from the motor, at the point when the accelerator is inactive. There for it sounds like your idle speed setting is too low, if you have a rev counter then it should be reading around 1000 revs at idle, if not the idle needs increasing. Hope this helps

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