Question about 1993 Buick Roadmaster

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Where is the sensor located for the air conditioning unit. Under the dash, where?

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Passenger side footwell. Remove plastic panel that is below the glove box. Sensor is located in the duct for the air/heat on far right side.

Posted on Mar 14, 2010

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1 Answer

No power to a/c compressor


A/C compressor clutch relay in the under hood fuse box . Check fuse F1.105 30 amp under hood fuse box . Also check fuse F2.14 7.5 amp location central junction box Central Junction Box (CJB) (14A068)
under dash panel, LH side, bottom .

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My yukon 2005 front air condition does not change position and does not blow air on dash vents it only blows under the dash and on top the dash


Under the dash on the side of the heater and air unit is a motor that moves the air door. Check to be sure it is working sounds as if it is stuck or burnt out.

Sep 07, 2015 | Cars & Trucks

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Air Conditioning Sensor Location


the sensor/s are in the air vent block and there is on on the unit in the box. if it just stopped working it could be the pressure sensor when was the last time it was pressure tested it could be low and need topping up.

Jul 09, 2014 | 2005 Kia Sorento

2 Answers

Air Conditioning only works during winter and heat only works during summer!


Miss Kristin, your situation sounds more like the air flow blend doors/flaps under dash are operating, but incorrectly. All these vehicles temperature changes are actuated by vacuum from the running engine. In your case it's possible a vacuum line has become disconnected from the blend switch behind the lever or the 2 heat and a/c hoses have become switched. Either way, I believe it must be in the vacuum lines under dash, or possibly no vacuum at all to the blend switch because the main hose from the engine has become disconnected or is broken. Best of luck on this luv.

Jun 02, 2017 | 2003 Kia Spectra

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1999 Jeep Grand Cherokee - the blower works but there is no heat or air conditioning


does the air blows only on the windshield? if so there is a sensor located inside your dash board that need to be replace. Go to MSN.Auto and type in your vehicle under used cars and check the reliabilty it will tell you this and more.

Aug 16, 2009 | 1999 Jeep Grand Cherokee

1 Answer

How to Replace a Heater Core


Removal & Installation

  1. Disconnect the negative battery cable.
    CAUTION After disconnecting the negative battery cable, wait 2 minutes for the driver-s/passenger-s air bag system capacitor to discharge before attempting to do any work around the steering column or instrument
  2. On diesel models, remove the passenger side battery and battery tray.
  3. Remove the instrument panel by performing the following procedures:
    1. Remove the air bag control module (ACM) and bracket from the floor panel tunnel.
    2. Remove the trim from both cowl side inner panels.
    3. Remove the steering column-to-instrument panel opening cover.
    4. Remove the 2 hood latch release handle-to-instrument panel lower reinforcement screws and lower the handle to the floor.
    5. Disconnect the driver-s side air bag module wiring harness connector from the lower instrument panel reinforcement.
    6. Place the wheels in the straight-ahead position and lock the steering wheel. Remove the steering column without disassembling it.
    7. From under the driver-s side of the instrument, disconnect or remove the following items:

      Parking brake release handle linkage rod from the parking brake mechanism located on the left cowl side inner panel. Instrument panel wiring harness connector from the parking brake switch located on the parking brake mechanism. Three wiring harness connectors (body wiring harness, headlight, dash) from the 3 junction block connector receptacles located closest to the dash panel. Head light/dash-to-instrument panel bulkhead wiring harness connector screw and disconnect the connector. Instrument panel-to-door wiring harness connector located directly below the bulkhead wiring harness connector. Infinity sound system wiring harness connector (if equipped), located at the outboard side of the instrument panel bulkhead connector. Stop light switch electrical connector. Vacuum harness connector located near the left side of the heater/air conditioning housing.
    8. Under the passenger-s side of the instrument panel, disconnect the radio antenna coaxial cable connector.
    9. Loosen both sides of the instrument panel cowl side roll-down bracket screws about 1 / 2 inch (13mm).
    10. Remove the 5 upper instrument panel-to-upper dash panel screws; remove the center screw last.
    11. Roll down the instrument panel and install a temporary hook in the center hole on top of the panel. Attach the other end to the center hole in the top of the dash panel. The opening should be approximately 18 inches (46cm).
    12. Disconnect the instrument panel-to-heater/air conditioning housing assembly wiring harness connectors.
    13. Using an assistant, remove the instrument panel from the vehicle.

  4. If equipped with air conditioning, perform the following procedure:
    1. Discharge and recover the air conditioning system refrigerant.
    2. Disconnect the refrigerant lines from the evaporator. Plug the openings to prevent contamination.
    3. Disconnect the refrigerant lines from the accumulator. Plug the openings to prevent contamination.
    4. Remove the accumulator.

  5. Drain the cooling system into a clean container for reuse.
  6. Disconnect the heater hoses from the heater core tubes.
  7. Remove the PCM from the dash panel and move it aside. Do not disconnect the PCM harness connector.
  8. In the engine compartment, remove the heater/air conditioning housing assembly-to-chassis nuts.
  9. In the passenger-s compartment, remove the heater/air conditioning housing-to-dash panel nuts.
  10. Pull the heater/air conditioning housing assembly rearward far enough to clear the studs and air conditioning drain tube holes.
  11. Remove the heater/air conditioning housing assembly from the vehicle.
  12. Remove the upper-to-lower heater/air conditioning housing screws and remove the upper housing.
  13. Remove the heater core from the lower housing.


    Fig. View of the heater/air conditioning housing assembly


    0900c15280225dc3.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. View of the heater core

Apr 07, 2009 | 1997 Dodge Ram

1 Answer

High/low sensor switch location for 1999 Buick Century


Ros.....The heater motor is located under the dash on the right hand side (passanger side). You will have to remove the close out panel to access. The resistor you are looking for will be to the lower left of the fan motor at about the 7:00 position. Illustration is below.
let me know.
regards,
0900c15280217dd1.gif

Feb 10, 2009 | 1999 Buick Century

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1997 Buick Park Avenue


the blower motor is located either under the dash on the passengerside or under the hood on the passengerside

Aug 28, 2008 | 1997 Buick Park Avenue

1 Answer

Air conditioning


clogged airconditioning system. have it cleaned.

happened to me too, only, it is under the passenger side's dash.

hope it helps.

Aug 23, 2008 | 2003 Honda Pilot

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