car dies or revs at stops

2001 FORD FOCUS
170,000 MILES
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GAYNELL
  • MEMBER
  • 1 POST
we have replaced. fuel filter, o2 sensors, idle air sensor,
Nov 27, 2011 at 5:44 PM
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JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
Any applicable trouble codes? Does the system go lean at idle? Maybe a vaccum leak?
Nov 27, 2011 at 8:03 PM
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JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
Air flow can cause an issue.
Nov 27, 2011 at 8:04 PM
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