Question about Hummer H2 SUT

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My h2 oil pressure gage goes up and down from cero to 80 while runing, is this normal???

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Either your sending unit is bad or the gauge , you can ground
the wire to the sending unit and it should max out, if so
its likely the sending unit , which is also much cheaper
than a gauge.

Posted on Aug 22, 2010

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OIL PRESSURE GAUGE SHOULD HAVE STEADY READING.IF FLUATING I WOULD HAVE OIL PRESSURE CHECK SOUND LIKE FAULTY OIL PRESSURE REGULATOR.

Posted on Aug 22, 2010

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Oil pressure gage stays at 80 only goes to 0 when not running


Replace the oil pressure sending unit, they are notorious for this problem.

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All you have to do is replace your oil pressure sending unit.It`s in the rear of the motor by the left head.This is the drivers side.You need a special socket to remove the sending unit.Good luck.

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