i have a new thermostat, hot water going in and out of heater core. all acuators vents and doors work. cant get hot air to come out period? any ideas???

Asked by Feb 14, 2015 at 09:17 PM about the 1999 Chevrolet Blazer 4 Door LS 4WD

Question type: Maintenance & Repair

2 Answers

40,565

Is your blower motor blowing any air?

9,910

The "Blender" vent actuator may not be operating. A large number of questions on here seem to be centered on Older GM's ( all makes can have this problem but GM by far seems to be the most common) The last two I repaired was in the blender sw the vacuum ports became restricted....( Def-AC-Upper-lower .. etc) ... and one was the vacuum actuator under the Dash ... Royal PITA ... good luck ....

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