Overheating. Have manual fan switch barely keeps temp down. what IS NOT the cause
Compressor head gasket
Injectors cups
Thermostat
Egr cooler
Water pump
Radiator
All have been checked replaced new not problem
I have a 7th injector which is 2008 style has coolant running thru it. Head gasket, cracked head or 7th injector? Or liner leaking maybe? Coolant/oil dont mix coolant tank builds pressure somethings loose any ideas? Sometimes water temp stays down takes a bit to get climbing but mostly climbs temp easily and hard to get down fans runs for a bit to cool it off