I thought antifreeze was coming out from water pump but the metal gasket blew out from behind the timing case cover. I have already removed fan, shroud, a/c compressor and alt. Looking for any help on remaining steps
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two chances either the impeller on the water pump has come off the drive shaft ,its plastic on a metal shaft and they do often go or the head gasket where the vehicle has been run with no antifreeze causing the water ports to corrode and get bigger ,hence your rad blocked so where did this blockage material come from? think about it
II got a dodge 1500 4.7. The problem is, the oil cab is all green and im losing coolant all the time, there's smoke coming out smells bad, but no check engine at all. So I took it to a shop to check it they said, it's a water pump ,I changed the water pump but still losing coolant ............ so is it head gasket, manifold gasket, valve stem seal, piston rings, or something I don't know of??
Is the antifreeze leaking out of a small hole on the water pump housing just behind the pulley?
You need to know exactly where the leak is coming from. If the pump is not leaking then there is another location.
Generally pumps either work or leak. They do not slow down and overheat the engine.
Where did the smoke come from? Under the hood or out the exhaust pipe? If you blew a head gasket and the exhaust was blowing steam that would cause overheating. The original leak under the engine would cause overheating that then will cause other problems like blown head gaskets.
Did you use stop leak or some quick fix? what did you do to stop the original leak?
The pump does have a weep hole in it. If a seal in the pump fails coolant will come out of the weep hole. Looks like you may have a bad water pump seal, but check gaskets, intake manifold and hoses as these can leak in this area as well. So determine where the coolant is coming from before investing in a new waterpump.