if it doesn't have a heater control valve then what could be wrong with it ?? on 1998 Ford F-150

If there is no heater valve, what could possible be going on ?

by in Alamo, TX on February 02, 2011
2 answers 1 comment
ANSWER by on February 02, 2011
What are the symptoms?? Zee
COMMENT by on February 02, 2011
no heat in the dash
ANSWER by on February 03, 2011
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.