Heater not working properly

2004 HONDA PILOT
220,000 MILES • 3.5L • 6 CYL • 2WD • AUTOMATIC
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URBANDORK
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  • 1 POST
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.
Nov 3, 2017 at 5:14 AM
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MHPAUTOS
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  • 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.
Nov 3, 2017 at 4:48 PM