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2003 hyundai sonata. Will not rev over 3000 sometimes sticks at 2000 rpmm. Starts up n idls good but will not go over 40 mph. NO CHECK ENGINE llight seems to be fuel starved at speeds up to 40 mph. Pls help

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Posted on Jan 02, 2017

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SOURCE: Will not rev over 2000 rpm 2003 hyundai santa fe 2.4 eng

get someone to rev the car and see if the exhaust note sounds muffled!!! i.e blocked or bent if it sounds normal chech fuel pressure and more importantly fuel flow the guy with air flow meter was proberbly right
regards ray w QLD OZ

Posted on Apr 06, 2009

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polarcycle
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SOURCE: Hyundai Sonata 2002 idle at high RPM and accelerate 40-45 MPH

Look for a vacuum leak somewhere. This is the most common problem for a high idle.

Posted on Jun 23, 2009

  • 4 Answers

SOURCE: Hyundai Sonata 2002 idle at high RPM and accelerate 40-45 MPH

Try To Disconnec The Catalytic them drive it mostlikly is goin to be bad cat

Posted on Nov 11, 2012

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