Bad Oil Cooler Symptoms in Trucks vs Head Gasket Failure
Bad oil cooler symptoms in trucks: oil in the coolant, coolant in the oil, and the tests that separate an oil cooler leak from head gasket failure.
Tag: cooling system
Bad Belt Tensioner Symptoms on a Semi Truck: What to Check
Bad belt tensioner symptoms on a semi truck: squeal, growl and arm shake, how to check the tensioner pulley and drive belt, and when to replace the unit.