High idle and accelerating slowly on its own

Tiny
DILLONSWED
  • MEMBER
  • 2001 DODGE DURANGO
  • 4.7L
  • V8
  • 4WD
We did a head job on the durango runs great except the idle is high when in park about 2000 rpm when put in drive its wants to accelerate through 3rd gear it feels now I can hear a vacume leak it seems coming from the throttle body but when I cover my hand over it to see if there is one the truck chokes a d dies like there isnt replaced the tps cause I figured that might have been a problem being how the check engine light says tbs low circuit and another saying tps high circuit still does the same tbing clear the dam code and still there hope this is detailed enough please help
Wednesday, March 12th, 2014 AT 9:22 PM

6 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,640 POSTS
Have you tried using carb cleaner to check for a vacuum leak? Also, have you checked the idle air control valve?
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Thursday, March 13th, 2014 AT 5:28 AM
Tiny
DILLONSWED
  • MEMBER
  • 4 POSTS
So ya we checked the sensor and sprayed throttle cleaner and didnt find anything took the air intake off and noticed oil on the driver side around the manifold and a valve seems to be stuck open could this be the problem?
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Thursday, March 13th, 2014 AT 8:08 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,640 POSTS
What kind of valve?
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Friday, March 14th, 2014 AT 8:39 AM
Tiny
DILLONSWED
  • MEMBER
  • 4 POSTS
Cylinder valve stem intake side and is there anyway to replace it without removing the head?
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Friday, March 14th, 2014 AT 9:17 AM
Tiny
DILLONSWED
  • MEMBER
  • 4 POSTS
Changed the valve and spring still idling high n accelerating slowly by itself
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Saturday, March 15th, 2014 AT 10:50 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,640 POSTS
I feel you have a problem with the IAC or a vacuum leak.
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Wednesday, March 19th, 2014 AT 7:41 AM

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