This topic contains 1 reply, has 2 voices, and was last updated by 
Richard Kirshy 2 years, 8 months ago.
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Topic
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Been working on this for a while. I think there’s a small coolant leak underneath, haven’t pressure tested. Flushed out some rust. Lower hose not collapsing. No heat coming from heater core and blend door works. Replaced rad cap first. upper rad hose hot. Rad seems to flow. Bled air out the plug. After bleeding air out starts spitting water out bleed plug hole and boiling sound from engine with rad cap off. Spouse said gauge was staying at 5/8 instead of normal 3/8 . replace water pump or thermostat ???
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First check for any leaks.
Pressure test the system.
Leak down test each cylinder
Check cooling system for combustion gas
Back flush the heater core
Flush the cooling system
Check the operation of the cooling fan
Check for debris blocking the radiator
If needed vacuum fill the cooling system
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