Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello, my name is***** oil pressure sounds about normal and the leaking coolant would mean water pump is leaking if it isn't coming from anywhere else. Here are replacement instructions for water pump. Let me know if you have more questions or if there is anything else I can do to help. Thanks.
It is a coincidence, even if you did have high oil pressure which you don't it wouldn't cause a coolant leak. The bearing in the water pump usually is what gets worn so coolant leaks from behind the pulley, not the actual gasket. Once you are able to get a better look at water pump with fan assembly removed you will be able to see if leak is from behind pulley or gasket but I'm pretty sure it will be gasket. The above links are about as good as it gets with explosion views but it shows everything you will need to work with. Let me know how it goes or if you have more questions, thanks.
I wouldn't replace the thermostat, its not like you would be saving time because thermostat is a easy job by itself if it was to ever fail sometime down the road. If vehicle was having temperature problems it would be a different story but not with a leak. Let me know if you have more questions, thanks.
It sounds like you have air in system. Let me know how it goes, thanks.
Cooling System Bleed Procedures