Question about Hyundai Motor 2003 Elantra

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My car hesitates and slowsdown while driving

When i drive my car going about 50 -60 mph. my car hesitates and slows down i am going to replace the spark plugs and oil change i think it is the fuel filter. but i do not know where it is located on vehicle . please help

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The fuel filter is in the gas tank with the fuel pump - it's actually a 'SOCK' that filters fuel before it enters the pump. Odds are it's not the filter. Odds are you have a Throttle Position Sensor which is going bad (bad spots in the potentiometer). Erratic resistance changes sending BAD signals to the Engine Control Module and Transmission Control Module ECU & TCM. A good technician knows how to check it with an analog ohm meter.

Posted on May 27, 2009

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Posted on Jan 02, 2017

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