2007 JEEP COMMANDER
82 MILES
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ANONYMOUS
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what vehicle system is the upper plenum related to? and what causes damage to it?
Feb 27, 2013 at 3:52 AM
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BLUELIGHTNIN6
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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Greetings

The upper plenum refers to the upper air intake manifold. Water and rust can damage the intake manifold. You can also have a manifold gasket that has gone bad and started leaking.
Feb 27, 2013 at 6:10 AM
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