Hummer H2 For those who like a little more gleam to their Hummer, the H2 offers a similar rugged look as the H1, but as a lower cost, and with more added features, making it almost a massive luxury SUV.

For oil gear pf h2

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Old Jan 2, 2019 | 10:53 PM
  #11  
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It is probably the oil pressure sending unit is the one causing the problem!
but the problem now how to find a new parts 😅, in my area they stopped completely from saling any parts for hummer.
Just I heard that gmc seirra internally part are similar to hummer do you think i will finds there new parts that fit my h2?
 
Old Jan 3, 2019 | 08:17 AM
  #12  
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The sending unit is shared with other GM vehicles, so it should be obtainable from a parts store or any GM dealer. Hopefully you have a GM dealer in your country. I would try it first before digging into the stepper motors in the dash.

I also would replace any of the fluids that have been in use for too long, new fluid is always better than old wore out fluids.
 
Old Jan 3, 2019 | 10:13 AM
  #13  
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Agreed and yes the engine is the same GM 6.0 used in over a dozen different GM vehicles from GMC, Chevy, Cadillac, in trucks, SUV's, even certain cars and specialty vehicles. Also many electrical, some suspension, some drivetrain, and other components are the same as in many other GM vehicles.
 
Old Jan 3, 2019 | 01:36 PM
  #14  
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Can’t find the oil pressure switch?
 
Old Jan 3, 2019 | 06:16 PM
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Old Jan 5, 2019 | 09:16 AM
  #16  
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Yes the problem was from the oil pressure switch, After i have changed it the problem was solved. the pressure is reading now around then 35 psi when it is running. And 0 when just the key is plugged.
 
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