I have a 1984 Isuzu Pup that is overheating. Have replaced head gasket,
radiator, heater core, water pump, and I can't figure it out. It does
fine as long as there is no thermostat and no heat. Any ideas?
Have you replaced the thermostat? You said it does fine without it, and you
didn't mention it in the list of things replaced...
Maybe a restriction in the system, perhaps a chunk of the old gasket
restricting the flow of coolant?
I have crankshaft driven fan and it works properly. I've replaced the
thermostat too. Heck if I know what is wrong with the darn thing but
there isn't anything left to replace and it still overheats. *kicking
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