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my 2002 volvo isx 500 hp keeps building pressure in radiator can this be caused by anything other than head gasket leading? Rick Hutchinson MN
Optional Information: Make: volvo Model: 720 Year: 2002 Engine: isx cummins 500 Already Tried: checked air compressor new water pump
Hi I'm Wayne, I will help you with this,
most likely cause is Head gasket, but how did you eliminate the compressor
hooked up pressure gauge ,left truck run til pressure was up to used air to kick in compressor no change in reading
It only takes a small amount, might not be able to tell, that way,
bleed down air tanks, remove dis charge line, run truck and shut off after 5 min. if no air, its compressor, if is air, then Head Gasket
discharge line from compressor
Experience: 34 years experiance as engine rebuild and problems.Thermo-King repair and trouble shooting.