Question about Kia Optima

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Driving on freeway, gas pedal depressed half or less occasionally there is a power loss. Feels like the car slows down before accelerating (all in under a second).

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This is a very minor timing problem.
Either the spark is too far advanced, or too far retarded.
If you've a set of 'feeler gauges', you will know what to do now.
Alternatively, take it to a 'Trusted' garage.
I say 'Trusted' because, unfortunately, there are too many 'garagist's' (if you like,) that are quite happy to take your hard earned green, in exchange for less than nothing.

There ya go, and please, don't forget to rate.

Posted on Jul 29, 2009

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Posted on Jan 02, 2017

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Check the help links related to this problem.Click the link below to go through its troubleshooting procedure :-----Idles rough and quits when gas pedal is pressed less? http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html---------
Car won't start without hitting the gas pedal? http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-without-hitting-gas.html
-------Complete loss of brake pedal then all gets normal? http://repairhelpcenter.blogspot.com/2012/01/complete-loss-of-brake-pedal-then-all.html
------Car dies when gas pedal is pressed? http://schematicsdiagram.blogspot.com/2011/12/car-dies-when-gas-pedal-is-pressed.html
--------Pushing on the gas pedal, but the car slows down? Gas pedal to the floor and the car slows down?

http://technoanswers.blogspot.in/2012/02/pushing-on-gas-pedal-but-car-slows-down.html

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After replacing brake rotors and pads, brake pedal remains on floor? http://technoanswers.blogspot.in/2012/02/after-replacing-brake-rotors-and-pads.html

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accelerator pedal sensor? http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

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For rough idle issues and problem troubleshooting,go through the help links provided below :----- van idles rough?

http://howtobyme.blogspot.in/2012/01/2004-ford-freestar-van-idles-rough.html

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http://technoanswers.blogspot.in/2012/02/ford-explorer-40-will-not-idle-when.html

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http://technoanswers.blogspot.in/2012/02/ford-runs-lean-and-idles-rough.html

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http://repairhelpcenter.blogspot.com/2012/01/engine-stumbles-coming-off-idle-when.html

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http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html

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http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html

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http://schematicsdiagram.blogspot.com/2011/12/gmc-idle-air-control-iac-valve.html

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http://repairhelpcenter.blogspot.com/2011/10/engine-quits-at-idle.html

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http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html

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http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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This will help.

Thanks.

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Car loses power while driving and jerks while it's trying to accelerate but cannot,as I press pedall to the floor.Completely slows to a crawl on the freeway and almost stops but engine does not die.Then...


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