Dash heater barely working
I know that in my old gas burning cars the failure of the dash heat to warm up was almost always due to a bad thermostat. That may well be the problem with my 2006 DP, Cat 350 Phaeton. Naturally, chan...
Forum Discussion
#1 failure mode is low coolant level.
If not that then follow the previous posts
Water Valve.
Back flush heater core.
If the thermostat was bad the temp gauge would never rise.
If not that then follow the previous posts
Water Valve.
Back flush heater core.
If the thermostat was bad the temp gauge would never rise.
