2000 Dodge Ram heater won't get very hot

[quote:f868f9e2c6="tckk99"]Heater problem
2000 Dodge Ram 6 cyl Four Wheel Drive Automatic 150000 miles
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I have recently had my heater core, radiator among other things replaced and the heater on my pickup truck will only get lukewarm at best. What else could be wrong?[/quote:f868f9e2c6]

Hello !!

Check the valve that allow the radiator water to enter the heater core ... (temp. controller)

also check if the engine temperature its right if its too cold you`re not going to get hot air...

also check the clutch of the radiator fan (should "slip" when cold)

Good Luck!