Will using Bars Stop Leak- the one with liquid copper(sodium silicate) fixed the leak on the waterpump or oil cooler gasket? Or this is a bad idea to use on those leaks?
Will using Bars Stop Leak- the one with liquid copper(sodium silicate) fixed the leak on the waterpump or oil cooler gasket? Or this is a bad idea to use on those leaks?
No, just replace the water pump and oil cooler gasket. That stuff is intended for coolant, trying to fix a head gasket, nothing else. You also need an ignition source to solidify sodium silicate, temperatures exceed 1500⁰F, hot coolant doesn't reach anywhere remotely close to that temperature.
Replace the water pump and oil cooler gasket.
Or this is a bad idea to use on those leaks?
Not only is there zero chance of it working in that situation, it's a bad idea to use those kind of "sealer" products for anything unless you're dealing with a vehicle where the only other choice is the junkyard.