My 91 Vette. Just trying to figure out the fundamentals of heating at this point because it makes no physical sense.
new t-stat, new water pump, new coolant(drain n fill 2x with distilled water then 50/50 mix)
no matter how hot the coolant gets it refuses to blow hot air. Both lines on the heater core are hot. The only time I get hot air is when the car is driven, parked, and started back up again within a few hours. Only blows hot for a minute then gets ambient again.
my only assumption is the blend door being jammed up, but that still wouldn’t explain why it only blows ambient temp air at all times. Even if half and half I would assume it would always be a constant temp, but it’s not. Why would it only blow hot for a minute if there’s coolant running through the core?
clogged up heater core? Reversed hoses on the heater core? Faulty new t-stat?
new t-stat, new water pump, new coolant(drain n fill 2x with distilled water then 50/50 mix)
no matter how hot the coolant gets it refuses to blow hot air. Both lines on the heater core are hot. The only time I get hot air is when the car is driven, parked, and started back up again within a few hours. Only blows hot for a minute then gets ambient again.
my only assumption is the blend door being jammed up, but that still wouldn’t explain why it only blows ambient temp air at all times. Even if half and half I would assume it would always be a constant temp, but it’s not. Why would it only blow hot for a minute if there’s coolant running through the core?
clogged up heater core? Reversed hoses on the heater core? Faulty new t-stat?