2004 Dodge Ram 1500 4.7 liter running Hot

has the thermostat been replaced, is the cooling system low on coolant?

You may need to add coolant to the cooling system, That is considered secondary and if the level is low the engine gets coolant priority, after you add check it again soon, as it may get air locked and once you drive it it may go low again, if that isn't the problem then you may need a thermostat is the engine warming up?

I would defiantly check the water pump, can you feel pressure in the rad lines? when you changed the rad and thermostat out, did you run your vehicle without the rad cap for awhile to ensure that there was no air locks within the system?
Water pump is located at the front of the engine behind the fan.
Good Luck! hope this helps.

It's going to run hot, especially in hot weather but one big thing is what kind of coolant you are using. If it's dex-cool ( chevy and gm brand ) get it out of there and put some pre-mixed good coolant / water mix and it will help a whole lot. Just had the same problem with my 02' blazer. If the water pump and thermostat have been changed you should not be having a problem.

YOUR ENGINE OPERATING RATING TEMPERATURE SUPPOSE TO BE 190 TO 200 DEGREES. IF COOLANT SENSOR DEGREES IS SHOWING 190 OR 200 DEGREES IT WORKING.THAT RIGHT.IF ITS SHOWING 60 OR 80 DEGREES IT FAULTY. AND ENGINE WILL RUN POORLY.

under maximium load your cooling system is struggling asuming you have an automatic transmission,it is cooled through the radiator,when running the ac your condenser is hot,right in front of the radiator,if your not leaking,and your anti-freeze looks bright green an clean ,and the fan or fans are working ,first change the thermostat,cheapest,remove the serpintine belt and inspect the water pump pulley,spin it by hand,try to tip it forward and backward,to see if it wobbles,it should spin smooth and quiet,if it has a chattering or growling feel,or the pulley wobbles change the pump,the only thing left is the radiator ,make sure that debri or something isnt stuck in front of it a small piece of paper is enough to restrict airflow,inspect the core is it turning green and the fins are falling out ,is the plastic shroud intact around it, lots of things could be going on ,the transmission could be low on fluid,and running hot,causing the excessive load on the radiator,disregaurd this if you have a manual.need more info to pinpoint further,hope this helps

Hi,
Engine overheating?
1. Coolant level at cold
2. Coolant leak check for loss of, during "not hot" running condition. (water pump, hoses)
3. Replace the thermostat. It's inexpensive and easy enough to do.

Hope this helps... Good luck!

does it mostly run hot while a/c is on??
if so check to be sure auxiliary fan is on! (the electric fan on the radiator) it should always be on anytime the a/c is on!!

faulty coolant sensor .it will cause coolant fans not to come on.

Your truck does not have to be low on water to be running hot...you need to verify the tempature of the cooling system, and the head temp...then you will be albe to tell if it is actually overheating , or just an indication problem. Be very careful as hot engine coolant can scald you badly (know from experience)