2001 Dodge Durango rpms flucuate

2001 DODGE DURANGO
145,000 MILES • 4.7L • V8 • 4WD • AUTOMATIC
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STEVEN MOSS
  • MEMBER
  • 1 POST
while driving cruise contr on or off the rpms can vary as much as 700-1000. when stopped at a light it will lurch forward then sometimes idle down and die.
Dec 18, 2014 at 12:08 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Check for engine vacuum leaks and check the idle air control valve (IAC). The IAC is responsible for maintaining the engine idle speed.
Dec 18, 2014 at 12:48 AM
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