Heater not working properly

URBANDORK

MEMBER
2004 HONDA PILOT
3.5L
6 CYL
2WD
AUTOMATIC
220,000 MILES

Blowing cold air. Mode doesn't change which vents blow air. Replaced heater control valve- didn't help. Smell of burnt antifreeze in engine compartment, but no leaks observed.

Friday, November 3rd, 2017 AT 5:14 AM

1 Reply

MHPAUTOS

MECHANIC
31,937 POSTS

First check that you do have circulation through the heater core, both hoses should be hot to touch at normal operating temperature. If not you will have a blocked heater core, they often flush clean fairly easily, check this first.