Chrysler Repair: 3.3/3.5 L engine overheats, head gasket leak, upper radiator hose

Question
engine overheats. I have replaced water pump,timing belt,thermostat,coolant reservoir and cap. Fans work. No "check engine" light. help!!

Answer
Hi Ed,
There are three possibilities:
air trapped in the system, partially clogged radiator, and head gasket leak.
On the trapped air:
Drain and save a couple of quarts of coolant
Close radiator drain, hand tighten only
Install cylinder block drain plugs if removed earlier (located behind each exhaust manifold)
Attach one end of 1/4 inch ID clear hose that is 4 feet long to the bleed valve on the thermostat housing. Route the hose away from the accessory drive belt, drive pulley, and electric fan. Place the other end into a clean container. The hose will prevent coolant from contacting the accessory drive belt when bleeding the system during refill operations.
Open the bleed valve
Slowly fill coolant fill coolant pressure bottle until a steady stream of coolant flows from hose attached to the bleed valve.
Gently squeeze upper radiator hose until all air is removed from system.
Close bleed valve and continue filling to the top of the coolant deaeration pressure bottle.
Install cap on coolant pressure bottle
Remove hose from bleed valve
On the radiator clog possibility, let the engine warm up from cold, at rest and when the temp begins to push toward overheating feel the two manifolds on either side of the radiator. They should be similarly warm; if one side is still cool it suggests there is not good flow through.
On the head gasketl eak: listen for any gurgling sounds from the system as it warms up, observe for any early expulsion of vapor or coolant from the overflow bottle. Also, when starting from cold, observe for prolonged emission of steam from the tailpipe and see if it smells of coolant. Look for foamy or cloudy oil. If you have any of those, then you have gasket leak. Unexplained loss of coolant is also a symptom. Then you need to find out which cylinder bank has the leak: check for a wet plug before starting: pull all the plugs, then watch for water to be expelled from any spark plug hole after letting the engine cool entirely, at first cranking. Also a radiator shop can check for exhaust gas in the cooling system as a final test for a head gasket leak.
Finally check the wheels after a drive to see if one might be unusually hot which indicates a dragging brake.
Those are the possibilities I see after what you have already tried.
Please let me know what you find.
Roland