Question about 2003 Kia Sedona

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2003 kia sedona. very hesitant in damp weather.Has new battery now it is stalling when I slow down

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There are few possibilities causing this problem.The reasons could be your fuel injectors are clogged, or the EGR valve which has to do with a vacuum leak, like a possible vacuum leak on the engine.

--------- Other common causes for this problem you describe are excessive deposits in the throttle body , a failing mass airflow sensor( maf), an air leak in the hose between the airflow sensor and the engine, or a faulty idle air control valve. Take a look under the hood to see if there are any disconnected or leaking hoses; pay particular attention to the large rubber duct that connects between the air intake of the engine and the airflow sensor next to the air filter housing. Try removing the air intake duct from the engine and look into the throttle body to see if there are any black sooty deposits in the throttle plate area; if there are you can clean them away using some aerosol carb cleaner spray and an old toothbrush. Try cleaning this parts and see, if that is making any difference.If still the same problem.Then you will have to get the vacuum pressure test done and fuel pressure test done at local car garage.This will point out towards the vacuum leak or loose cracked vacuum hose, causing the problem.----------
This will help.Thanks.Helpmech.

Posted on Mar 26, 2011


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