2000 bravada alternating hot and cold on ac, system not low

ID Status Date Year Make Model Transmission Type A/C Controls Public/Private
#13873 Closed oldmoble bravada public

AC blows hot than cold than hot, keeps on alternating, vacuum doors, none of them are moving,

Sparky

The mode and air inlet doors are vacuumed controlled. The temperature door is controlled by an electric actuator. The actuator is located on the top right side of the heater/ ac case assembly. It is a feed back style so the actuator would be highly suspect as the cause of the problem.

ok, ill check that

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