2005 Saturn Ion Exhaust Smell From Heater Vents

Question: Hi Michael – I have a 2005 Saturn ION. Every time I turn on the heater, it smells like exhaust is coming through the vents. Why is this???? Answer: OK, smells can sometimes be hard to pinpoint, unlike fluid leaks which can be seen. Our noses are notoriously inaccurate. Now the most common smell […]