Hum coming from engine after shut off

RTW Colorado

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Rick
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So there is a electrical hum coming from under the hood after engine is turned off. Assuming this is something to do with the battery DC-DC converter but just curious.
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00Sebby

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It could be the oil circulation for the turbo. They tend to run for awhile after shutdown to cool down and protect the turbo bearings. At least that's the way my MINI Cooper S and VW GTI work.
 
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RTW Colorado

RTW Colorado

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It could be the oil circulation for the turbo. They tend to run for awhile after shutdown to cool down and protect the turbo bearings. At least that's the way my MINI Cooper S and VW GTI work.
yes, its the 2.0L turbo...
 

00Sebby

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Rploaded

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It’s the circulation pump for the turbo, mine runs for about 15 minutes. You can climb under the passenger side right by the drag link and look up and you will see a small circular pump if you reach up and touch it you will feel it vibrating.
 
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RTW Colorado

RTW Colorado

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It’s the circulation pump for the turbo, mine runs for about 15 minutes. You can climb under the passenger side right by the drag link and look up and you will see a small circular pump if you reach up and touch it you will feel it vibrating.
Thanks. Hey your Jeep is the same color as mine. And my son lives in Houston - go Strohs!
 
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