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1 votes

Strange, long wooooo sound at steady speeds, ICE on

Started By Alex Sams , Jan 25 2014 11:52 PM

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224 replies to this topic

#221 OFFLINE scottwood2

C-Max Hybrid Member

C-MAX Hybrid Member
577 posts

Region:U.S. Great Lakes
LocationMetro Detroit
My C-MAX's Year:2014
Current Vehicle:2014 C-Max SE, 202A, Winter Package

Posted 15 March 2016 - 12:01 PM

I've noticed a few times that the engine puts out a "wooo" sound on. Each time I've let off the gas and the sound goes away. I don't know if it is the ANC adjusting or what. It wasn't that loud, but definitely present.

Just adding a data point here. It isn't worth mentioning to the dealer. I think what folks are hearing on this thread is a lot louder.

Mine is the same. Happens about 2200 RPM. Go above or below and it goes away. Mine is not that bad and not always there. As you said I think some are much more noticeable.

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#222 OFFLINE stevedebi

C-Max Hybrid Member

C-MAX Hybrid Member
842 posts

Region:U.S. Pacific Coast
LocationLA
My C-MAX's Year:2014
Current Vehicle:2014 C-Max Energi

Posted 15 March 2016 - 02:58 PM

Mine is the same. Happens about 2200 RPM. Go above or below and it goes away. Mine is not that bad and not always there. As you said I think some are much more noticeable.

Except on long highway trips I don't have the RPM gauge up, so I don't know where it shows up.

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#223 OFFLINE fbov

C-Max Hybrid Member

C-MAX Hybrid Platinum Member
1,397 posts

Region:U.S. Northeast
LocationRochester, NY
My C-MAX's Year:2013
Current Vehicle:C-Max Hybrid

Posted 15 March 2016 - 04:58 PM

Tachometer is a My View option.

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#224 OFFLINE stevedebi

C-Max Hybrid Member

C-MAX Hybrid Member
842 posts

Region:U.S. Pacific Coast
LocationLA
My C-MAX's Year:2014
Current Vehicle:2014 C-Max Energi

Posted 16 March 2016 - 02:04 PM

Tachometer is a My View option.

I know, as I said, I use it on long highway trips.

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#225 OFFLINE WNY

C-Max Hybrid Member

C-MAX Hybrid Member
106 posts

Region:U.S. Northeast
LocationCuba, NY
My C-MAX's Year:2013
Current Vehicle:F150,Mustang, Escape

Posted 29 March 2016 - 07:42 PM

i have the drone/woo sounds right at 2350-2450 RPM on the scan gauge usually just under load like going up an on ramp or something if I keep it steady at that RPM.
Usually don't notice it much with the radio on. lol