RPM's "Jumping"

Tiny
QUIRB127
  • MEMBER
  • HYUNDAI
Make: Hyundai; Model: Elantra; Year: 2004; Mileage: 54600; Engine Size: 2.0 L w/DOHC; Question: In park, car typically idles at just below 1000 RPM. Here lately, it has been "jumping" to 2000 RPM before returning to normal. Over a few minutes it will do this a couple times. I can also feel the RPM's "jump" when I come out of a stop after I take my foot off of the brake but before I press the accelerator. What could be the problem and is this something that would be covered under my warranty? Joanne R.
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Friday, November 9th, 2007 AT 6:50 AM

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Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have the idle air control actuator, throttle position and manifold absolute pressure sensors.

Could also be fuel pressure problem

Warranty dunno there's no TSB's/Recalls, might want to check the dealer.
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Saturday, November 10th, 2007 AT 2:53 PM

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