Most common vacuum leak locations on the 3.9 V6

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03-27-2019, 01:45 PM

soundquest

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Most common vacuum leak locations on the 3.9 V6

Any consensus among forum members for the most common vacuum leak sites on the 3.9.

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03-27-2019, 10:58 PM

RalphP

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Quote:

Originally Posted by soundquest

Any consensus among forum members for the most common vacuum leak sites on the 3.9.

Like any other motor - due to the age, any and ALL rubber hoses under the hood.

For Magnum 3.9s, the plenum gasket is another leak spot.

Any or all of the hoses inside the cab for the HVAC ducting.

RwP

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