4.7 HO upper radiator hose supposed to be hard?
Just purchased a clean 2004 Overland WJ with 174K highway miles. Prior owner was an engineer for Chrysler and owned it since it rolled off the assembly line. I noticed when doing an inspection under the hood that the upper radiator hose is quite hard and hot the lower hose is just lukewarm as well as the radiator cap. Engine does NOT overheat and temp gauge is always at line just before the halfway mark. It is the 4.7 HO engine, is this normal for this engine?