1994 Chevrolet Suburban 1500 Q&A

1994 Chevrolet Suburban 1500 Question: Cold air blowing instead if heat

I've replace my thremostat and my heater is still blowing out cold air. What could be the prolem? -
Answer 1
This could be caused by low coolant level, air trapped in the cooling system, or a plugged/clogged heater core. -
Answer 2
Most common problem is low coolant. -