2001 Dodge Dakota Idle

Tiny
SPARH
  • MEMBER
  • 2001 DODGE DAKOTA
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 13,200 MILES
I have a 2001 Dodge Dakota. When it idles, it sometimes idles high (reving it's own engine). I had the Oxygen Sensor replaced last Saturday and it ran great until it started happening again yesterday (Tuesday). Any reason this would be doing this? For some reason it usually seems to happen when it is warm. This has been happening for at least 1.5 years and we can't seem to correct the problem.

On another note, the engine light came on again yesterday as well and when they tested it todeay, it came up with an emissions code. The mechanic said that this is probably just a cracked hose. Could this cause the issue with the idle?
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Wednesday, October 20th, 2010 AT 1:21 PM

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Tiny
XTREMEMODIFIER
  • MEMBER
My bet would be vacuum line first. Go out, get a bottle of engine starting fluid (or other similar alcohol-based spray bottle) and with the engine idling, spray on the vacuum lines. If the idle suddenly changes, you've found your culprit. If they're badly cracked and/or worn, I'd still get them replaced, as it's a cheap/easy job, and it can't really hurt any to hold vacuum.

Does it always idle high? Just have trouble dropping idle? Any other noticeable conditions - noises, vibration/shaking, scents, or other changes?
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Wednesday, October 20th, 2010 AT 6:10 PM

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