Car is running hot. Just got new hose put on and radiator flushed and themostat. What is the problem?

experience has proved that flushing a radiator is a waste of effort
the flush only cleans out the open tubes and not the blocked ones and the salts in the block now flow into the radiator and block the rest
check the fan operation
viscous fan hub --replace the fan hub
electric fans check the system from the coolant sensor , fuses (2) , relay and fans

if no leaks in hoses, then flush out the radiator etc, there maybe a plug up in system. also change thermostat. God-Bless! and hope this helps you.

You need to check the car t cold start up by checking both the lower and upper radiator hoses. After a few minutes one should be hotter than the other. If not the themostat may be stuck open. also chech to ee if there is heater contro valve from the engine to one of the hoses going to the heater core and see if it actuates by moving the temperature control from cold to warm.

Could be your blend door is not opening all the way on heat,here's a link to look at.

LET IT COOL DOWN FIRST AND THEN REMOVE THE RADIATOR CAP AND YOU WILL SEE THAT IT IS LOW BECAUSE YOU HAD AN AIR POCKET IN THE SYSTEM ONCE YOU FILL IT BACK UP GIVE IT SOME THROTTLE AND YOU WILL SEE THAT THE LEVEL WILL GO DOWN WITH THE THROTTLE DOWN TOP IT OFF AND THAT SHOULD TAKE CARE OF IT

replace the temperature sensor (should be located on the intake, usually on the driver side). If the sensor is bad, then the reading will be wrong - as long as you dont' hear the boiling, or see steam coming from the radiator, or anywhere else, you'll be fine. However, I suggest also checking both top and bottom radiator hoses, heater core hoses. Also, make sure your air filter is clean.

Please let me know if you need further assistance.

carsandcomps,

Guru, Premium Expert @ Fixya.com

Most places can flush out you system for you. But you can do it your self. and only way you need to change hoses if they are cracked and leaking. you can go to you local auto part store and ask how to do it the safe way cus i may do it the wrong way. also pick up the antifreeze you will need while your asking.lol i just stick a house in the radiator and take the return house off the radiator and let it flush that way and when i think its all flushed i slow it down and put in the antifreeze and when i start to see green i stop every thing and put the hose back on. but the car needs to be running the whole time to cycle it through the whole motor. but you may need to ask the right way to do it.lol not the redneck way i do it.

[1] plugged radiator core. replace radiator,not cleanable
[2] a bunch of dead bugs stuck on air conditioner condenser in front of radiator. open hood and look at front of it if a bunch of debris blast it off with water hose
[3] the air not properly bled from the engine cooling system. some have a bleeder screw that must be opened while engine running untill all air is let out if i dont have a screw for bleeding then you have to let engine run long enough to open thermistat i may take a while when radiator tank feels hot then thermistat is open. coolant level should have dropped top off and put cap on
[4] electric cooling fan not working

the only thing I can recommend is to put in a flush tee not the hose going to the water pump but the one going to the engine open up the radiator and drain that first then fill with water get some radiator flush and run the car about ten minutes drain that out using the flush tee and a garden hose and run till it is clear with the engine running after clear close drain plug on radiator and fill with antifreeze and make sure to get all air bubbles out and you should start getting some heat and if you don't after doing all this replace the heater core but check the hoses coming from the heater core to make sure one of them is not plugged

go to auto parts store and get a flush kit,

cut and insert the "T" from the flush kit on the heater hose outlet or inlet.
make sure you are cutting into the heater hose coming out of the firewall heater area and not a large vacuum line.
if your not sure ask a mechanic.

connect the kits anti syphon to water hose and connect to the T you have installed ,
open the radiator , and flush very slow if engine is hot , or wait till engine is cool as a very cold flush can damage the engine.