2004 Ford Ranger 4.0 244 engine noise on startup - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 05-07-2013
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Join Date: May 2013
Location: Sandgate, VT
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2004 Ford Ranger 4.0 244 engine noise on startup

I have a 2004 4x4 Ranger 4.0 engine.

Recently, I noticed a slight rumbling right at the point of start-up. Almost instantly the noise goes away. When I first heard this slight rumble I turned off the motor and restarted but no noise on second start up.

The noise seems to be coming from engine compartment or perhaps it is something to do with A/C or interior heat. Does anyone in here have any clues as to what this is or perhaps someone has had the same rumbling noise. I would welcome and appreciate any comments.

Thanks in advance!
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Old 05-18-2013
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Location: Enterprise, AL
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Almost certainly its lack of oil in the head causing valvetrain noise. It goes away when the oil pump pushes oil back into the head to quiet everything down.
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