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A technician investigating heater core symptoms in a vehicle

Heater Core Symptoms: Fogged Windows, Sweet Smells, and Weak Cabin Heat

In Brief: Heater Core Symptoms Common heater core symptoms include weak cabin heat, persistent windshield fogging, a sweet smell in the car, damp passenger-side carpeting, and unexplained coolant loss

1 September 2026

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Dean Woloshen Auto Body Technician

Dean Woloshen
I had a great experience at ATC. The instructors were very experienced and excited to be passing on their knowledge to others. What I learnt at ATC helped me open up my own shop where I now have students doing their practicum. Having the ATC course under your belt really gives you an edge. Anyone interested in the automotive or auto body should sign up with ATC.

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