2000 Dodge Durango surge

2000 DODGE DURANGO
13,000 MILES • V8 • 2WD • AUTOMATIC
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RIVERBOAT
  • MEMBER
  • 3 POSTS
engine surges at idle and hwy speeds up then down
Feb 11, 2009 at 6:26 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,236 POSTS
IT sounds like a throttle position sensor (TPS) of a Idle Air Control Valve (IAC). Is the check engine light on?

Joe
Feb 16, 2009 at 5:35 AM
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RIVERBOAT
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  • 3 POSTS
Joe; TPS ,MAPS, are new parts. Ck engine light does not come on.used code analizer-showed no codes ,then erased codes.
Feb 16, 2009 at 9:12 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,236 POSTS
Hi:
Have you checked fuel pump pressure? Is power normal other than the surge?
Feb 16, 2009 at 9:34 AM
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RIVERBOAT
  • MEMBER
  • 3 POSTS
yes I have,and presure is normal
Feb 16, 2009 at 9:38 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,236 POSTS
If the electrical end is good and fuel pressure is good, the only things left are a vacuum leak or catylatic converter may be plugging. Have you checked for these problems?

Joe
Feb 16, 2009 at 10:38 AM
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