Question about 1999 Buick Century

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How do you adjust the AC mixing doors - 1999 Buick Century

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Go to www.automecanico and www.autoelectronico.com translate the website for easy diagnostic and fix it. With your browser
God bless you

Posted on Jul 11, 2013

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How do I get to the ac-heater barn door to see if it is working okay. AC setting only puts out hot air. AC is working okay.


the mix door is usually next to the heater core which is usually mounted under the dash board on the passenger side.

Mar 10, 2015 | 2001 Ford Taurus

1 Answer

The air mixing doors is stuck


It could be run by a vacuum pipe, check and listen to see if you hear air escaping, if not then it could be electrical

Jan 04, 2014 | Cars & Trucks

1 Answer

2002 mercury sable ac not blowing but heater works any ideas?


Could be a blender door issue. What a blender door does is mix the cold air from the AC with the hot air from the heater core. If you put the switch ALL THE WAY to hot, the blender door (usually an actuator) pushes the door up and allows only air passing thru the heater core to enter the cabin. If you push all the way to cold, it only allows air from the AC. If you put halfway, it mixes/blends the air...

Aug 04, 2013 | Mercury Sable Cars & Trucks

1 Answer

Ac is only blowing to the windsheild and cant figure out why? please help


sounds to me as if one of the doors / air mix door stuck. your model sentra had some issues with that. we were actually removing the dash and complete evaporator box and replacing the air mix door foam that came of and jammed the doors. it also could be that your cable came off that connects from the knob to the evaporator box to switch modes. does the knob on dash turn or is it stuck??when you turn it??let me know.

Aug 19, 2011 | 2000 Nissan Sentra

1 Answer

I am helping change a thermostat - (we have no manual) where exactly is the thermostat located. This is a 4 cyl, standard trans, 2WD, speedo stopped working at 225K. Heater went out about 6 months ago, AC...


The thermostat cannot cause your heater to go out, though the heater will run a little cooler if the thermostat is stuck open. Please see my tip at http://www.fixya.com/cars/r6235876-no_heat_fan_blowing_cold_air to troubleshoot the heater. In particular, I would start by checking the temperature control cable adjustments. I have pasted instructions from autozone.com below.

If you really want to change the thermostat, please see my tip at http://www.fixya.com/cars/r5929960-s_thermostat . The thermostat is in the housing at the end of the upper radiator hose.

For the speedo, It's probably a broken cable. Have someone take the cable off the tranny and spin the cable in their fingers while you watch the speedo. If the speedo works, the problem is with the gear in the tranny, else the cable is broke.

Let me know if you have more questions along your journey. :o)



Heater temperature control cables to blend door and heater water valve--adjustment:
WATER VALVE CONTROL ROD

See Figure 8
When adjusting the water valve control rod, disconnect the temperature control cable at the air mix door lever and then adjust air mix door control cable. Next, adjust the control rod. Reconnect the temperature control cable and then readjust it.
  1. Push the air mix door lever in the correct direction.
  2. Pull the control rod in the direction shown (in the accompanying illustration) until there is an 0.08 in. (2mm) clearance between the ends of the rod and link lever. Connect the rod to the door lever.
jturcotte_114.gif

TEMPERATURE CONTROL CABLE
See Figure 9
Move the temperature control lever to the cold position. Push the cable sheathing and the air mix door lever in the correct and then tighten the clamp. Verify proper operation.

jturcotte_115.gif

Nov 08, 2010 | 1992 Nissan Pickup

1 Answer

2000 Buick LeSabre A/C blows hot out drivers vents and cold out passenger vents history codes are BO179output air temp sensor 2 short to ground or open,,BO234 Air mix door 1 range error,,,BO237 air mix...


Depending on the model, normally there is a door at the center of the air duct for the AC. It should be found underneath the dashboard at the center. Normally when the motor of the door is faulty you would not get the correct mix or will not get a constant air temp blowing on the two sides. Have the motor checked out. The other scenario is the thermostat or the temp sensor found near the same location towards the evaporator or the part where you can see the coils if you remove all the cover. Inspect the wiring to that part make sure that there is no exposed wire or loose wire. Either there is an issue with the wiring or the thermostat has gone bad. A bad thermostat would mean no signal to the AC which activates the door to send the correct air temp.

Apr 13, 2010 | Buick LeSabre Cars & Trucks

1 Answer

AC unit is blowing both cold and warm mixing as if


Sounds to me like you've got a stuck door. One of the doors in the air ducts isn't closing/opening all the way. Possibly stuck or possibly a vacuum leak or disconnected/broken vacuum hose. Only way to know is to pull the dash apart. Sucks but gotta be done.

Mar 22, 2010 | 2005 Lincoln LS

1 Answer

Blend Door on 98 Ford Explorer


the blend door is roughly in the middle of air distribution Plenum assembly between the heater core and the AC evap core, it either directs air through the heater core or the AC evap core or mixes air from both.

Jan 14, 2009 | 1998 Ford Explorer

1 Answer

AC temperature


Servo motor? I disagree. Actually, there are 3 servo motors in the vehicle; an air inlet servo, an air mix servo, and an air outlet servo. None of which control the temperature.
The AC temp is controlled by a thermister in the cooler box/eveporator unit under the dash.

Jul 10, 2008 | 2001 Toyota Tacoma

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