Finally had the heater core on an AC 85 V8 replaced. through here I'd seen posts where everyone suggested that the restrictor go in the larger hose that went to the intake and the restrictor going in that end of the hose closest to the intake. It immediately ran way too warm checked with the guy who did the heater core and was told it needs to go in the hose that goes to the water pump and the restrictor goes to the core end of the hose. swap that out still having issues running way too warm and now when I turn on the heat inside the car the temperature shoots up even more. Temperature was good with the bypass on the hoses pre core install.
Dont think thermostat magicly went out.
Also replaced temp sending unit.
.currently guage is at the M in normal. With heater blowing it jumps to between a & l. . with bypass, guage sat at o or r.
Anyone have any ideas or suggestions?
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