Join Date: Feb 2011
Location: Brampton, Ontario
9/10 its the heater valve. I'd just change it. Mine "appeared" to be working but inside the valve had spun and was moving from closed to closed. I had ordered and had the part already (less an 20bucks) so I figured change it anyhow and when i had it off I could see the issue. Now I've got excellent heat and fairly cheap to! and ur mechanic is sad if he just called a rad without investigation. New mechanic for sure.