My engine is overheating?

Yes, the thermostat can be replaced without removing the intake manifold.

1. Partially drain the cooling system.

2. Remove the air cleaner and duct.

3. Follow the upper radiator hose to the engine to locate the thermostat housing cover. The thermostat is located at the end of the lower intake manifold on the driver's side of the engine compartment. You may also want to disconnect the coolant hoses connections between the throttle body and thermostat bypass pipe to make it easier to fit a socket wrench in there.

4. Loosen the hose clamp, then detach the hose and the coolant reservoir tank line form the thermostat housing cover.

5. Remove the thermostat housing cover and the thermostat. (Note: Remember which end is supposed to face out when you do this.)

6. Install thermostat with the new seal.

7. Reconnect hoses and refill cooling system.

When choosing the coolant for your car, GM recommends the orange-colored "DEX-COOL" silicate-free coolant and replacing it every 100,000 miles or 5 years. You can also use the green-colored ethylene glycol anti-freeze, replacing it every 30,000 miles or 24 months. Before deciding which coolant to use, keep in mind DEX-COOL has been known to eat away at gaskets.

I have changed the water pump, thermostat and it still loses anti-freeze and overheats when driven on the freeway. The motor is a 3.1

Hello again,
Ok ive kept filling it allthough there was hardly any if at all coolant missing and when hot I smelled nothing under the hood or in the car, another weird thing happened though I was driving it yesterday on my way to town the temperature gauge was doing its funky thing again, I could feel cold air flowing so I knew it was going up, but this time it whent all the way up till the overheat light came on, I pulled off the highway and stopped the car immediately and popped the hood, when I opened it I was expecting a lot of heat coming towards me but this wasnt the case, I could touch the engine it was warm but not hot it was warm as to be expected from a 15 minute drive, I squeezed the radiatore hose and again it was warm but not burning hot as to be expected from an overheated engine.
I brought it in to my mechanic shop and he looked and try to figure out wat the problem was. He couldnt tell me he said it might be the head gasket still but he said then the engine would feel a lot hotter. I dont even know what it could be its a mystery to me, and any help is apreciated a lot. Thanks in advance !

Engine Cooling problem 6 cyl Front Wheel Drive Automatic 145020 miles

after replacing water pump still over heating

I have changed the radiator, the water pump and thermostat. After changing all parts I let car run for over 30 minutes with no issues. As I drive off in it the needle starts to rise and overheats. The coolant shot out of the overflow hose. I was having the same problem before changing these parts the only difference was it was leaking coolant before. No leaks now but it gets hot very quick to the point where the antifreeze/water is boiling in the coolant tank til it shoots out.

Engine Cooling problem
2003 Chevy Malibu Front Wheel Drive Automatic

Today I added a green color of antifreeze and now my car is overheating and the needle on the gauge is going up. I now have heard that the antifreeze for my car is supposed to be orange and that they should not be mixed. How do I correct/fix this now that they are mixed?

Had new water pump put in, since then car started overheating and loosing coolant. Also, it is blowing cold air. Car never overheated prior to new water pump.

Just installed heads, gaskets, thermostat, water pump, and coolant tank. Have bled coolant system numerous times and still running around 240 degrees. Upper and lower radiator hoses get hot but the hose from radiator to coolant tank stays maybe lukewarm. Can rev engine and see coolant being pulled down. Fans also work properly.

The only code I have is for the EGR. It runs perfect for maybe 1 minute then a rough idle unless you hold the throttle around 1,000 to 1,200 rpm's. I connected a Blue Point scanner and on the live stream it showed the temperature was around 233 to 240. Would a bad temperature sensor still show the temperature I was receiving on the reader? Or is that the sensor it goes by?

I will get a new one and try in the morning. I will let you know how it goes. Thank you