2.7 replace thermo water pump is good no water in oil gets hot boils water what is going on please help

Check radiator cap for good fitment.
If good..
There are two hoses to and from engine to radiator. Upper should be warmer than lower one as it warms up. Hot coolant leaves motor, goes through radiator comes out cooler k?
Is it circulating when hot? Don't let get to hot though, but verify that thermostat is opening up.
You think it's faulty.? Drain coolant, remove hose that thermostat is behind, remove thermostat and take in the house. Put water in pan like a 2 quart type. Put in one quart water. Look at thermostat. This is how it looks closed. Boil water, 220 is perfect above 212 but not 300...k
Drop in thermostat into boiling water carefully..hot..
Let set in there 23 seconds...
Remove with salad tongs..that step is critical...i used a piece of wire once that I tied around it ahead of time but that was to easy .
Look at hot thermostat...is it different? Is it open? No ? Go to ripoff zone and get new one and new radiator cap, and new antifreeze, reassemble in reverse, put in new 50/50 mix.
Drive car, enjoy your repair and the 200 buck you saved yourself. Drive to dairy queen..eat multiple treats...go to bar..party time!!
If this wasn't sufficient to fix, dang, check water pump. Pray it's water pump...good. oh no. . Check oil for anti freeze and vice versa...probably head gasket.. oh no!!!

You will need to bleed the system of air .It will boil over after refill .Let it do this leave it cool down over night ,top up next morning .You have air in the system you need to purge it .of air air..And In you hand book it will tell you how to go about it. Dont let it get to hot it will warp the cylinder head..

Ok so you need to pressure check the cooling system. The whole reason we pressurize the cooling system is to raise the boiling point of the water most systems are 15psi which raises the boiling point to about 255° if the system cant hold pressure you could simply be boiling off the water. Also while pressure testing its a great time to look for leaks. You may also want to inspect the heater core

Many possibilities, first check water/coolant level, check for leaks after running engine for about 10 mins, or sitting overnight, then check radiator air flow is not restricted, and fins are in reasonable order, check fan, make sure it cuts in before engine gets to hot, check if there is water in the oil (looks creamy) or oil in the water, if so you need a head gasket and/or a new head. flush engine block with high pressure water in reverse flow direction, then check thermostat, use thermometer, put in a pot of water temp, is stamped on body of thermostat, if not, bring to boil, should open well before boiling point, replace if needed, check water pump fins are not worn away. get specialist to use lazer temp gauge.

Hope this helps.

Looks like you have a leaking head gasket or cracked head. You can buy a head gasket leak detector kit that will let you know if there is CO2 gas escaping through the radiator. I think that it is this gas leak that makes it look like your radiator is boiling.

Have you checked out the water pump? Most of the time, you can feel movement in the /head shaft area before it fails. Water pumps usually go slowly, pumping less and less water (making the engine run hotter). The also get noisy when they start to fail.

Hi, If you see white smoke coming from tail pipe then you will know it is leaking through engine.
I would suggest after you replace head gasket, that you put new radiator fluid (50/50) mix and a new thermostat in. The fluid will keep it from boiling over. Good luck.

water boils at 200* plus, you might want to check the cooling fans which involves the temp sensor, check into that

You need to pressure test the cooling system. Unless you had the heads magnafluxed or inspected very carefully, there could be minute cracks causing the problem.

This is the #1 problem with any engine where boiling takes place due to the expansion power that steam has the capability of producing.

The cylinder walls could also have cracks in them, there could also be a freeze plug that is leaking slightly, causing the engine to overheat as it can't build the proper pressure.

sometimes it's a better move to get a low mileage used motor, than to attempt to repair one that has high mileage and this type of suspected damage.

good luck

replace coolant fluids and oil and add more water