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so the other day after driving I went to top off the car and purged my entire cooling system out of my reservoir. So I filled it right back up but after that I'm pretty sure I got a air pocket in my heater core because my system would seem full but blow cold air in the cabin until i reached a higher rpm such as a steady 2000 or so. I replaced the thermostat just in case that could be the problem I pressure checked my cooling system no more leaks then I pressure filled my cooling system with a brand new 250 snap-on tool. After running the car for a while my reservoir will start to bubble and once again purge the system out of the overfill normally I would assume head gasket but the bubbling stops and starts when it feels like it. I don't get the overheating light or any obdII codes nothing like that. One thing I'm thinking it could be is my auxiliary water pump but to my knowledge that is only there to push coolant into the heater core or move warm coolant around the system when the car is off, I was thinking maybe its either over working, or could it not working at all cause that somehow? I have yet to test it with a voltmeter, I'm going to check my cylinder pressure next to be sure its not my head gasket. I'm really hoping that someone on here will have the all magical cooling system cure for me I really appreciate your time.
I pulled a diagram offline and altered it to match my engine to the best of my knowledge.
I pulled a diagram offline and altered it to match my engine to the best of my knowledge.
