Just as a caution, what brand was the water pump? We usually don't change it until 200k miles and all times one failed it's has been an aftermarket replacement part.
That said, your were touching the two hoses that go into the firewall? If one it's cold perhaps air is trapped inside the heater ? Other than that it would be the water pump doesn't circulate the coolant. The dividing walls inside the heater can break causing less heat through the vents, but the coolant will still flow through it and will return through the second hose which would still be warm/hot
Last edited by oragex; Nov 14th, 2017 at 23:31.
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