1993 Ford Bronco idle

200,000 MILES • V8 • 4WD • AUTOMATIC
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RRK
  • MEMBER
  • 1 POST
when engine is cold idles great but when warms the idle goes from 600 rpm to 2000 and will not drop checked for vac leeks none found just started all at once nothing changed on engine.been reading forms but most were idle drops to low mine goes to high .cap rotor plug and wires all good filters good..
Nov 1, 2010 at 10:23 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Try cleaning out the idle air control and test the MAF and TPS sensors-check if the throttle is sticking
Nov 1, 2010 at 10:34 AM
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