Turn key makes hmmm sound, wont crank or turn over, dash lights on.

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1999-2007 Ford Super Duty

The Ford Super Duty (also called the F-Series Super Duty) is a series of trucks produced by Ford Motor Company, an American automaker.

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Ken Wieteha @kenwi

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发帖于: 2019年11月17日

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Turn key makes hmmm sound, wont crank or turn over, dash lights on.

After cylinder 2 misfire code I changed coil packs and spark plugs twice in case bad part. Now makes a hmmm sound but won’t crank or turn over. Dash lights are on. F250 super duty 5.4 v8.

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Isaac @geekittogether 声誉积分: 1千 Geek it Together, Inc. 9 2 1 · Answer 1 · 2019-11-17T14:30:11-07:00

Isaac @geekittogether

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Geek it Together, Inc.

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Here is a list of possible causes:

https://dannysengineportal.com/starter-p...

I would start with confirming the battery is good and well connected. Clean the contacts, etc. Mostly focus on the starter, since you should hear it trying to turn the engine over whether the spark plugs are setup correctly or not.

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1999-2007 Ford Super Duty

Turn key makes hmmm sound, wont crank or turn over, dash lights on.

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