Van won't heat up?
'95 B3500 van, 5.9 L runs below temp.. We've replaced the thermostat(properly) and radiator
cap.. Could the radiator be the cause? It and heater core were flushed. Heater core was
clogged but, not now. still won't heat. No pressure in radiator and is cooler on one side than the
other. Coolant temp is 150 and thermostat is 195. Top hose is hot, bottom is cold. It does not
overheat when being driven. Any ideas out there?