I have a 2000 Oldsmobile alero it overheats I already pu a new water pump and thermostat into it

SOURCE: How do I replace the water pump in a 96 Oldsmobile Aurora?

the water pump is driven by a small belt at the back of the front cylinder head.  the pump needs to be removed with a special socket. From what i recall the pump has tabs on it that lock into the housing & i think its reverse thread / turn right to remove the pump instead of left 

SOURCE: 98 328IS OVERHEATING AFTER CHANGING THERMOSTAT

Are you putting the thermostat in correctly? It it will not work backwards.

And to confirm that there isn't a different problem, take the thermostat out all together and see if it overheats.

Engine not fully warming up is not usually caused by the thermostat. Stats usually fail closed, not open.

You will want to check the water temperature sending unit or gauge after verify the water temperature with an external calibrated thermometer. You can attach and insulate the external thermometer to the housing where thermostat is located.


Reply back what you figure out. I will be happy to help you further.

SOURCE: need to replace the water pump on a 2000 oldsmobile alero 4cyl

If you have the 3.4L engine, easy, if you have the 2.4L HARD! Best left to a professional.

SOURCE: how do i install a water pump on a 1999 olsdmobile alero 2.4 liter

you need a haynes repair manually.because you have to remove timing chain cover. you have to remove timing chain tensioners.to unload timing chain.because water pump is going to interfere with timing chain housing.you will need a manually . too much to tell you in words.

SOURCE: oldsmobile is overheating in idle only

my termas gage go up and down