radiator cap brand new not building pressure thermostat is new 195 heater core has been flushed nothing coming out clean water new water pump any other suggestions on why no pressure in radiator

 

A leak!

 

Get a radiator pressure tester and hook it up. Let's you pressurize the system cold and look for leaks.

 

i dont see any leaks and im not losing coolent

 

i have the same pronlem i cant find anything out

 

did this occur after the flush?

could have air pockets in the cooling system, if a thermostat has no bleeder hole ill drill one or two.

as dbilik said do or have a pressure test done

 

alwas been this way ever sense a waterpump change

 

How do you know you have no pressure? If you have been driving the truck for a while after a water pump change without pressure you should be having problems that indicate no pressure. Maybe Crazy can tell me if I am wrong, but the pump doesn't build up the pressure, the change in temperature does, the pump just circulates the coolant.

 

im just going by a cold cap no mater how long i drive the truck i thought my cap was to be warm or at least hot to the touch corect me if im wrong

 

what does the temp gauge read? is the enging overheating? Yes cap s/b hot