wont idle down when changing gears

1994 FORD RANGER
128,000 MILES
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LONBOY
  • MEMBER
  • 1 POST
when changing gears the engine wont idle down, it is also pulling a lot of vacuum at the oil filler cap
Dec 12, 2011 at 8:26 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check the PCV system and the idle air control valve/ MAF and TPS sensors
Dec 12, 2011 at 8:36 PM
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