- Buick Ownership
- 93 Buick Riviera
I just picked up this beauty today, only 111k miles and it's in almost mint condition, very well taken care of. Everything works fine with it....with the exception of the heater. The AC blows cold, all the vents seem to work. Turn it to heat, raise the desired temperature all the way to 90, only blows cold. So I was thinking it has to be some sort of valve to let hot coolant flow through the heater core, or it's the thermostat itself. The temp gauge sits one bar below half always, I don't know if that's the "normal" range, or if the thermostat is in fact stuck open and not allowing the car to get to operating temp....which would explain the lack of heat.
Any advice is appreciated, thank you.