Need for radiator on a 2005 equinox

The unlikely one is the head gasket. Do you have water in your oil, do you have mayonnaise on the oil filler cap?

If the area under the thermostat is dry, the most likely issue is water pump failure. Empty the system, backflush the radiator and heater hoses with a garden hose. Replace the water pump and thermostat. Fill the system with coolant, turn the engine on, heater to maximum temperature and keep topping up the radiator until the coolant is hot and the thermostat opens. Squeezing the top and bottom radiator hoses also helps to get air out. Turn off the engine and top up the radiator one last time. Put the cap on and then top up the expansion reservoir.

One thing often overlooked with overheating issues, make sure the radiator fan is working properly.

It means you need to take your vehicle to a qualified repair shop.

Check or replace the thermostat, if still running hot check fans, fit pressure gauge to radiator to check for head gasket compression leak.

You have a blown head gasket or a cracked head..more than likely just a blown head gasket..you need to have someone run a combustion gas test on the radiator..you are getting raw exhaust pushed back in to the radiator causing it to superheat

Some of the new Chevrolet needs to be taken apart. The front end will come apart fairly easy, but you may want to call a Chevy dealer or get a book from an auto parts store for $11.00

on the bottom of the radiator is a plug. just loosen it.

Hello: You may have a cooling fan(s) problem. Start the truck, turn the a/c on max, both fan and a/c control. Open hood the cooling fan(s) should be running. If not then you will need hands on trouble shooting. It could be fan(s) motor(s), relays, relay control, ie PCM, wiring, fuse etc. Systematic hands 0n trouble shooting will be needed with a upscale scan tool.

its behind the driver side fender close to your head lamp wiring harness

Not all vehicles have the cap you are talking about. If your vehicle does have a radiator cap, it will be somewhere along the top of the radiator. Would recommend going to a shop where they have the proper tool(s) to do a coolant flush.

its a real pain spend the $ and get a mechanic to do it i have one and no fun