On "FLOOR" position.
All air through defroster or DEF/FLOOR.
|
-
Blue and/or and vacuum hose pinched or disconnected at vacuum motor.
-
Black source hose pinched or disconnected at the connector.
-
Engine compartment vacuum source hose pinched or disconnected at the vacuum manifold.
-
Defective vacuum motor.
|
On "DEF/FLOOR" position.
All air through defroster.
|
-
Blue hose pinched or disconnected at vacuum motor.
-
Black source hose pinched or disconnected at the connector.
-
Engine compartment vacuum source hose pinched or disconnected at the vacuum manifold.
-
Defective vacuum motor.
|
On "PANEL VENTS" position.
All air through defroster.
|
-
Yellow vacuum hose pinched or disconnected at vacuum motor.
-
Black source hose pinched or disconnected at the connector.
-
Engine compartment vacuum source hose pinched or disconnected at the vacuum manifold.
-
Defective vacuum motor.
|
On "PANEL/FLOOR" position.
All air through defroster or panel
|
-
Yellow vacuum hose pinched or disconnected at vacuum motor.
-
Blue hose pinched or disconnected at vacuum motor.
-
Black source hose pinched or disconnected at the connector.
-
Engine compartment vacuum source hose pinched or disconnected at the vacuum manifold.
-
Defective vacuum motor.
|
On "DEF" position. (No vacuum)
On "RECIRC" position. All air through fresh.
|
-
White vacuum hose disconnected at the connector or recirc duct vacuum motor.
-
Black source hose pinched or disconnected at the connector.
-
Engine compartment vacuum source hose pinched or disconnected at the vacuum manifold.
-
Defective vacuum motor.
|
Engine poor idle
|
-
Engine compartment vacuum source hose disconnected.
|