I went outside and spun the fan. It only moves about 5" in either direction. Would you still replace the fan clutch?
I do not mind doing it at all just do not want to if this means it is OK.
Hoping to do it this weekend once I find a decent procedure.
THANKS

 

Installed a new fan clutch today. Got it warmed up and drove around the neighborhood for a bit. All seemed normal.
Hooked up the camper and took it out on the freeway and within 6-7 minutes temp was high again.
So far new thermostat and fan clutch. Any thoughts on why the temp is so high are appreciated.
Thanks much
Matt

 

How old is the rad? Ever been cleaned or flushed? It's possible rad tubes are getting plugged. Enogh cooling for normal operation but not enough for heavy work? I think I would explore this possibility?

 

Radiator is likely next, just exploring anything else I might be missing.
Thanks

 

Looking at the picture, the rad has been replaced (factory units are painted black) and you have the tow pack (both steering and trans coolers in front of the rad). Having had mopars from new until 10+ years old/150k miles - the inside of the cooling systems look brand new if you maintain it with the right coolant. Mixing chemically different coolant can cause alot of issues. I know on the hemi, you can swap rads and have alot of coolant still stuck in the system. Don't know about the 4.7.

First I'd test the coolant, make sure they mixed 50/50. Then I'd inspect the thermostat, is it in the right orientation and does it look like they replaced it when the rad was replaced. Next I'd probably pull the pump and see what it looks like inside. Gasket is cheap if the pump is still nice and new looking. If its corroded, then I'd probably put a pump, radiator, heater core, thermostat, waterneck, and hoses on the shopping list.

 

I replaced the thermostat and fan clutch last week. No change when towing, still gets hot. Replaced the radiator this morning. Will hook up the camper in a day or so and get her out on the freeway and report back.
THANKS
Matt