Can't tell in that video if you have coolant flow or not. Next time suck some coolant out so that it's below the filler neck. So that you can see movement. I've only seen 2 water pumps that wouldn't flow. Both were over 200,000 miles with impellers that was numbs. Nothing left of them. Both on V8 Chevys. 3 ways a water pump goes bad. The seal starts leaking. You can see the drops out of the weep hole. No noise most of the time. The bearing goes bad. You'll hear the noise. Or the impeller wears out. No noise or leaking. Just slowly stops flowing coolant over a long period of time.
If head gasket. Most shops can add a chemical in the coolant to help sniff for combustion gases.
Last edited by Rusty; 06-17-2017 at 10:15 PM.
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