My yukon is using a lot of water but it's not leaking water, where is it going?

you have a water pump or head gaskets going bad or leaking radiator or radiator cap-Denny

it is over heating,thermostat stuck close,water pump weak.

could be hose are a freeze plug are water pump.determen where the leak is on the floor and go from there

How about a crack in the cylinder head or a gasket leaking into either the inlet manifold and being sucked into the engine, or being blown into the exhaust system and being boiled away. Ask a radiator repair shop to carry out an O2 test on the coolant. They may detect presence of the gas in the water confirming a leak into the exhaust system.

Hello: Check the coolant level if the surge tank is not at proper level (threre is a full line on the container) If the container is low then you may have a leak in your cooling system.

could be a lot of things, but i would check for a a vaccume leak first!!

you need to replace your water pump. The pulley you speak of is on the water pump, and when the seal goes out, it leaks in that specific spot.

i would have to say you have a ride height sensor problem or a leak in the lines that go to your air ride, try getting the system pumped up and useing a spray bottle filled with soapy water to find a leak

WATER PUMP WILL LEAK FROM BOTTOM OF WATERPUMP WHEN GOING BAD CHECK CARPET ON PASSENGER SIDE UNDER DASH MAYBE HEATER CORE

if you dont see antifreeze leaking anywhere,its the head gasket,check your oil dipstck,the antifreeze is probally mixxing with the oil as it leaks thru the gasket and will give the oil a milky white color on the dipstick,if you start to see white smoke from the exaust then its leaking into your exaust port,either way head gasket and change as soon as possible,you dont want it in the oil cause you can seize the motor