Subject says it all. Engines running hot (about 3/4 of the gauge) but the
radiator is cold. I've bled it twice, no help. No evidence of leakage or
internal head gasket problems. If I run both heaters, I can keep the needle
centered. Ambient air temp in the 30's. Traffic and speed have no effect, it
does it in the city and on the highway. I'm thinking thermostat. Would that
cause these symptoms? Any other ideas out there?

Thanks,
John Flaherty
'84 GL Insufficient Funds