Join Date: Feb 2011
Location: San Francisco Bay area
Thanked 92 Times in 91 Posts
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Re: Coolant puzzle
I may be reading that wrong, but normally the pressure cap would NOT be on the expansion tank, but on the engine or water heater tank. The higher one I would think. Expansion tanks usually have just a silly splash prevention cap.
Try to pay attention. Read post 8. You are referring to an atmospheric catch tank, not an expansion tank.
Bristol 31.1, San Francisco Bay