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2003 Ford Expedition Question: Engine hesitation?

 

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Big Rose, 4.6L V8, West Columbia, SC, September 05, 2009, 08:36
 Rookie

When I accelerate, there is a hesitation before the engine engages. When I am driving between 40 and 45 mph, the engine makes a jerking/sputtering motion, but this does not when idling at a high rpm.

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  • Answer #1

    September 10, 2009, 16:15
     Master

    It sounds like your 2003 Ford Expedition is suffering from an engine misfire under certain load conditions or a faulty transmission torque converter clutch. There may be engine misfire codes stored in the powertrain computer, has the "check engine" light be on or flashing? A good road test with a qualified technician would go a long way to help isolate the cause of your hesitation issue.

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    Big Rose, October 17, 2009, 11:09
     Rookie

    How do I check for a misfire because the "check engine" light does not come on nor flashes? I I get a tune-up would this also help.

    What is a transmission torque converter clutch and what does it do?

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