2016 cuminns isx15 over pressure in overflow
03-25-2022, (Subject: 2016 cuminns isx15 over pressure in overflow ) 
Post: #2
RE: 2016 cuminns isx15 over pressure in overflow
Either the air compressor head gasket went bad and is allowing compressed air to enter the cooling system, or the more likely scenario is that you dropped a liner. Pressurize your cooling system to 20 psi overnight, then drop the pan and look for coolant. Most likely around the area of the #5,#6 cylinder.
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RE: 2016 cuminns isx15 over pressure in overflow - tree98 - 03-25-2022



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