Engine overheat after water pump install

[Matthew Dloughy]

Hey all. First time on here. Huge fan of etcg! I have a 97 tahoe and replaced the waterpump today. I did everything eric did in his how to video and it went great. Only problem is, after everything was said and done, when i went to bleed the system, i saw it was overheating. The thernostat housing was hot to the touch but the upper hose was not. Idk where to go from here. From what i gather it could rither be an air pocket right before the thermostat or a bad thermostat. What can i do besides throw a new thermostat at it if its not that? Or what else could it be?

Topic

[skim3544]

Or it could be bad water pump. Rare, but happens. Can you spin the water pump by hand?

[Author]

Replies