Heater Core Flushing - OWNED! (1 Viewer)

[izzyandsue]

Well the flush seems to have worked, was 29* this morning and it heated up much better than it has in the last two years. Not sure if it's 100% or more like 85% now but it's plenty until I can screw up the courage to change the heater core and most likely the head and head gasket too. Been hearing water rushing sounds from the heater core area still unfortunately and I think it might be combustion gasses not an air pocket. Oh well it is still much better for now. Maybe I can tear it down in summer for that rebuild.

Glad it worked, or at least you got an improvement. The water rushing sounds are normal, in my experience, you have some air to get rid off and may take some time and burping process. The plastic burping funnel, around $20, makes this an easier process. Run the engine for a good 1/2 hour, with the heater set to hot, and the burping funnel with some coolant in it. May take time, but bubbles will come out, it does take a good 30 min as I remember.

 

[Speedytech7]

Thanks again for the thread, was super helpful to know which one was the inlet and which the outlet.

 

[Buttons]

Thanks again for the thread, was super helpful to know which one was the inlet and which the outlet.

Thanks for the pictures. This is great detail. ANd im still trying to get together and find a non snowy place to do mine!