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Location of blend door and actuator for 1999 grand am

Looking for the location of the blend door and actuator for a 1999 grand am checked the controls they are getting volts and when you switch from hot to cold the volts fluctuate

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  • jadragna1 Mar 09, 2009

    the temperature stays hot constantly so i am trying to eliminate one by one what the problem is the controls are functioning corectly so i want to check the actuator and the blend door but i dont know where they are i pulled the glove box out but i dont what they look like and i hope the dash does not have to come out

  • mike loshbough
    mike loshbough May 11, 2010

    they are supposed to

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6 Suggested Answers

honeymokey
  • 3113 Answers

SOURCE: air blend door

Replace the broken actuator.

Posted on Apr 15, 2009


chiquititas
  • 1010 Answers

SOURCE: AC is blowing out HOT air... How to get to the Blend Door to check it?

No, you just need to fill freon gas.

Posted on Jun 25, 2008

  • 74 Answers

SOURCE: 1997 jeep grand air blend door location

The Jeep Grand Cherokee sucks air from the outside via a hole on the passenger side of the cowl. It's under the black plastic piece that runs under the wipers.

The air is then sucked via the blower and blown into the housing where the heater core and A/C evaporator core live.

The blend door is inside this housing as well.

This also depends on if you have regular climate control or the more advanced ATC digital climate control found on some of the Limiteds.

You could possibly take out your glovebox and see if there are any broken pieces going to the door accuator.

Otherwise if it's internal, you'll need to take out the heater/ A/C housing.

To get to this housing, you have to take apart your entire dash, lift the top dash cover off, and then you'll see the housing. You could possibly check for a few thing there.

Most everything there is vacuum controlled.

You have to drain your antifreeze and have your A/C freon discharged (use a professional to capture the freon).

There are 5-6 nuts holding the housing to the firewall. You have to reach these from the engine compartment.

Disconnect your A/C lines and heater hoses. Pull out housing.

This is definately an advanced project, thus the reason for the high pricing.

Hopefully you can get it fixed without having to take this Jeep apart entirely. Try diagnosing with a vacuum gauge if necessary before tearing it apart.

Posted on Feb 10, 2009

  • 50 Answers

SOURCE: A/C and Heater Blend Door Actuator

location is on ac and heater box under dash.Good luck big jab to fix it.

Posted on Mar 13, 2009

  • 159 Answers

SOURCE: 99 Grand Am heat out of dash at times.

it is the heater control panel. it is all electric. common problem with gm hvac controls

Posted on Jun 04, 2009

  • 72 Answers

SOURCE: grand prix 3800 blowing only hot air please help

check the temp control switch in the dash

Posted on Jun 22, 2009

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1 Answer

How do you know if you need a manual blend door actuator


Look At It When Moving Controls--You Should See It Move. NOTE: If Blend Door Itself Is Seized Due To Case Problem It Will Damage Actuator (not a uncommon problem)

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Blend door stuck open, buick lesabre custom,can not locate blend door to close it


it is controlled by an electronic actuator. look up blend door actuator on google with your year make and modle and it will show a diagram and location, also a part number if you would like to replace.

Nov 01, 2013 | Cars & Trucks

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Afternnon, just wondering about the best way to locate the blend doors in the hvac box without ripping out the dash on my 2000 jeep grand cherokee. Thanks in advance. Duane


y9ou can gain access to the driver side blend door actuator by removing the glove box. The actuator will be in the left corner of the glove box opening. If you remove the actuator you will be able to turn the pin. If you can turn it 360 degrees the blend door is broke.

If your lucky its only the drivers side. If you get the repair kit from chrysler it will come with instructions with pictures on how to replace the blend door without pulling the HVAC unit/Dash. If the passenger side is broken the HVAC unit will need to be removed.

Heater treater (google them) also have a metal blend door replacement and instructions online on how to replace them without pulling the HVAC housing.

Nov 28, 2010 | 1999 Jeep Grand Cherokee

1 Answer

My air conditioner is working but won't blow out


Are you saying the temp blend door is not working?
If yes, it's the control head or the temp blend door motor on th plenum case under the dash. Buy used on ebay.

DO you have manaul or electroic controls?

If electronic

A/C Electronic Blend Door Actuator The A/C electronic blend door actuator is located on top of the A/C evaporator core housing (19A553) assembly.
  • Its function is to move the A/C air temperature control door on command from the control assembly.
  • The A/C electronic blend door actuator contains a reversible electric motor and a potentiometer. The potentiometer wiper is connected to the actuator output shaft and moves with the output shaft to indicate the position of the A/C air temperature control door.
  • A five volt signal is applied to the ends of the potentiometer. The voltage available at the wiper indicates the position of the potentiometer. The expressed value of the actuator wiper voltage is sent to the control module and matched with the wiper voltage of the module potentiometer. The printed circuit board then drives the actuator motor in whichever direction is necessary to make the actuator wiper voltage agree with the control module wiper voltage.
-----------------------------------------------------------
manual

#3 is the blend door.

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May 08, 2010 | 1998 Mercury Grand Marquis

2 Answers

Heater door clicks all the time when car is running on 93 town ca


Check the blend door and other actuators. May be disconnected.

Mar 04, 2010 | 1993 Lincoln Town Car

1 Answer

Heat is out on 1999 jeep grand cherokee limited


I had this problem on a 99 grand cherokee limited, It was the heater blend doors and if you have dual climate control one side usually goes out before the other. These blend doors are located behind the glove box unaccessible inside the HVAC shell.
(http://www.wjjeeps.com/hvac_sub_assembly.htm) Motor failures for this HVAC sub assemblies is also something to look for although much less common.
My local dealership estimated $$$$$$$$$950.00 because they have to remove the entire dash so I looked around for something else.
http://cgi.ebay.com/ebaymotors/Blen-Dor-Jeep-Grand-Cherokee-Blend-Door-Heater-Repair_W0QQcmdZViewItemQQhashZitem3eef1e1cd6QQitemZ270299700438QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

I used something similar to this and now have heat that is controlled solely by the knob nearest the driver. It wasn't very difficult just kind of a tight squeeze.
Hope this helps
GOOD LUCK

Jan 09, 2010 | 1999 Jeep Grand Cherokee

1 Answer

1999 Jeep Grand Cherokee Limited,Dual climate control blows cool air on the driver side and hot on the passenger side. Was told by dealership item is located behind the dashboard and the repair cost is...


hi
check-out heatertreater.com, i had the same problem with my cherokee and bought the heater treater blend door repair kit. it really does work and you can fit it yourself in around half an hour. kit comes with all you need and full instructions..
hope this helps

Dec 29, 2009 | 1999 Jeep Grand Cherokee

2 Answers

1999 Silverado - cannot get the temperature to switch from cool air to warm air when turning the knob to heat.


The temp blend door, or blend door actuator may be faulty. You can check this by watching the movement of the blend door actuator while you turn the temp selector knob. If the actuator is working, then it may be the blend door, or blend door lever broken. If these are ok then the control head may be faulty.

Oct 18, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

Where is the blend door actuator located? Is it a


buried in the dash, about an 8 hour job.

Oct 11, 2009 | 1999 Oldsmobile Bravada

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