If there is no heater valve, what could possible be going on ?
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1998 Ford F-150 Question: if it doesn't have a heater control valve then what could be wrong with it ??
Answer #1ZeeTech February 02, 2011, 17:17Master
What are the symptoms??
ReplyVisitor, February 02, 2011, 17:34
no heat in the dash
Answer #2DaveJHM February 03, 2011, 03:39Master
You could have a temperature blend door actuator issue in the dash, failing to turn the blend door to "hot". You could have a flow issue at your heater core - it could be clogged? You could have a thermostat issue at the engine.