Thermostat location

SANZAL

MEMBER
2003 OLDSMOBILE ALERO

Engine Cooling problem 4 cyl Front Wheel Drive Automatic 56000 miles

How can I locate and change the thermostat in a 2003 Oldsmobile Alero 2.2litre engine. I want to try and change it myself. I love this site.

Wednesday, February 4th, 2009 AT 5:03 PM

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
47,574 POSTS

Hello,

The thermostat is located at the end of the upper radiator hose. Here is a guide that will give you an idea of what you are in for when replacing the thermostat.

https://www.2carpros.com/articles/replace-thermostat

Drain the cooling system. Remove the thermostat housing to water pump. Remove the thermostat housing to water pump feed pipe. Finally, remove the t-stat. Reverse the process to replace.

Let me know if this help, or if you have other questions. Also, make sure you use the same type of coolant as is in the system. If it's Dexcool CHANGE IT!

Here is what it will be like in your engine I have feature both 4 and 6 cylinders. (Below)

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken

Images (Click to make bigger)