1999 Saturn SL "check blend door 99" Questions

...Check the Blend Door Actuators https://www.google.com/search?q=99+oldsmobile+alero+blend+door+actuator .. Check the hose that runs from the HVAC box to the dash vent you can tape the holes closed or ...

...blend door actuator controls are usually ran off of vacuum. It is possible that once the engine warms up, even though you have it to heat, the loss of vacuum will cause the blend door to switch ...

...check temp control. Thanking you in advance. Suggestion: see if the blend door opens or closes completely to allow all air through the heater core. To see the blend door moving, remove the panel that ...

...check if blend door move freely if not repair or disloged foring object (pencil pen---comb---etc) if ok before installing actuator plug back in harness and move selector switch if it fails check for ...

...check the duct [blend,flap,diverter] door may be stuck sometimes debris finds its way into system and jams it -- actuator sticking or failed on 99 % of vehicles look under dash in center or towards ...

...check your wiring and fuses before buying anything In addition to faulty actuator motors, the blend door itself can also be broken. This happened on my Tahoe. Typically it is a very labor intensive ...

check the blend door by flipping down the glovebox, and drilling an observation hole into the plenum (see YouTube videos on "blend door" and "heatertreater" to figure out the location). If you drill a

...blend door that the actuator motor goes into was broke. When you pull the actuator out look into the hole and see if you see a d shape piece coming out of the box if it is not d shape it is broke ...

...blend door actuator . The clicking is the stripped plastic gears in side the actuator . The actuator is a electric motor that controls the temp. blend door . Could be a video on youtube on replacing ...

...blend door checked (its a door that cycles between hot and cold) i put in new blend door box, thermostat, and water pump. still no heat. it will somtimes blow warm air from the 2 middle vents and the ...