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Loses Power at Speed

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Old May 28, 2023 | 06:56 AM
  #1  
jjenco's Avatar
jjenco
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Loses Power at Speed

Four times in the past 3 months my 2003 Expedition 'Eddie Bauer' edition 5.4L has suddenly lost power while driving and begins coasting. Pressing the accelerator pedal does not respond. If you stop, turn off the engine, and then restart the engine, everything works normally again. Truck has 250,000 miles. Last tune up coils and plugs at 120,000. It sometimes 'chugs' intermittently while driving. Oil change every 3000 miles since New. Thanks for any help.
 
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Old May 28, 2023 | 09:32 AM
  #2  
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alloro
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Possibly the ignition switch. Turning the key off and back on allows worn contacts to reconnect.
 
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Old May 28, 2023 | 10:10 AM
  #3  
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aquanaut20
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Next time it happens connect a scanner BEFORE resetting key, take note of codes and freeze frame data..
 
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