Question about 1997 Oldsmobile LSS

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Is there a vacuum line or electronic actuator for the vent selector on 1997 Olds LSS. My mom's car stuck in default defrost / heat position Is there a fuse on drivers side or should I check for vaccum leak or can I manually put in AC position

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  • Anonymous Mar 14, 2014

    no air/heat from passenger vents on selection

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You need to replace one of the blend door actuators that are electric.

Posted on Aug 13, 2009

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This may be too late for the person looking for an answer about the vacuum (possible problem that is relative) There is a storage tank located under the right front corner of the car (underneath) look in the area around the lower side near the pparking lamp, then look toward the fender, it is a black plastic storage tank which has a hose that faces the front of the car, the rubber connector may be rotted and causing a leak from the storage tank. The part is relatively easy to access and it can be pulled out from the tank with ease to check it, the delivery line is made of plastic and usually is NOT the problem here, but the RBBER connector that is on the nipple is where the potential problem in this case may be where the problem is. You wont even have to jack the car up if you have a smaller body frame. Hope this helps anyone that may need this answer.

Posted on Dec 04, 2011

  • Justin Toft Aug 06, 2013

    This was my problem. $5 hose at autozone and it was fixed. Thanks for the help.

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1 Answer

Car to have heat come out heater vents on front of dash


There is a door vent accuator check it that's more then likely the problem or simpler check and see if you have a vacuum line that is dissconcetted that's comes out of your fire wall under the hood

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What causes the ac to blow cold in the rear but warm air in the front?


These vehicles came with 2 types of ac controls.
The vacuum control system uses vacuum to actuate the vents and ducting from hot to cold. A lot of times the HVAC vacuum line in the engine bay (black hard plastic) is either broken or disconnected from its vacuum source.
The electronic vent control: does everything at the control knob via vent actuators and the control panel itself. With this one it could be any of the components. You would have to locate them and verify operation by moving temp/vent selector.

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My 1997 ford f150 heater will not blow hot air. i have replace the switch that controls the hot and cold air. i do not know what else to do. i do not heat any vacuum noise when i switch it to the heater or...


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Control System Outputs
The air management doors are controlled by vacuum control motors (18A318) and an A/C electronic door actuator motor (19E616). The air inlet and distribution doors are controlled by vacuum control motors. The temperature blend door is controlled by the A/C electronic door actuator motor.
The A/C electronic door actuator motor provides a variable number of temperature blend door positions. Temperature control position energizes the A/C electronic door actuator motor moving the temperature blend door.
Vacuum control motors are used on both air distribution and air inlet doors. The air inlet and panel/defrost doors use a two position vacuum control motor. The floor duct/panel door uses a three position vacuum control motor. Vacuum control motors are controlled by engine vacuum through the climate control head.
For more information on the control components Section 412-04 .
-------------------------------------------------------------------------------------------------------------------------------------
Air Management Doors
The air management doors are controlled by vacuum control motors (18A318) and an A/C electronic door actuator motor (19E616). The air inlet and distribution doors are controlled by a vacuum control motor. The temperature blend door is controlled by the A/C electronic door actuator motor.
The A/C electronic door actuator motor provides a variable number of temperature blend door positions. Temperature control position energizes the A/C electronic door actuator motor moving the temperature blend door.
Vacuum control motors are used on both air distribution and air inlet doors. The air inlet and panel/defrost doors use a two position vacuum control motor. The floor duct/panel door uses a three position vacuum control motor. Vacuum control motors are controlled by engine vacuum through the climate control head.
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Section 412-04: Control Components - Climate Control 1997 F-150, F-250 Workshop Manual
REMOVAL AND INSTALLATION A/C Electronic Actuator
Removal
  1. Remove the floor duct panel.
    • Remove the two plastic push pins (one each side) and release the expander clip.
  1. Remove the RH instrument panel brace.
    1. Remove the lower nut.
    1. Remove the upper bolt.
    1. Remove the brace.
  1. Remove the LH instrument panel lower nut and position brace out of the way.
  1. Disconnect the vacuum harness from the vacuum actuator.
  1. Remove the floor duct.
    1. Remove the two screws (one each side).
    1. Remove the floor duct.
  1. Remove the panel/floor door vacuum control motor.
    1. Disconnect the vacuum line connector.
    1. Remove the two panel/floor door vacuum control motor screws.
    1. Slide the rod out of the door and remove the panel/floor door vacuum control motor.
  1. Remove the electronic actuator.
    1. Disconnect the electrical connector.
    1. Remove the three screws.
    1. Pull down to release the actuator shaft and remove the electronic actuator.

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1 Answer

1997 dodge Ac not blowing through front vents


Depending on what system is in that truck you may have a bad blend door motor or a vacuum leak, check around the engine for ant vacuum leaks or dissconnected lines, if its controled by selector motor then motor may be bad, this motor move the door to contorl which way the air comes out ,like defrost or vent or floor, the actuator motor is located under the dash bolted to heaterbox, this may be hard for you to find as there are 3 ,actuator motors, they control the recirculation door then one for temp and last the selector actuator. the best way to locate bad is to locate one at a time and watch as you move all heat controls until you find the one that doesnt move, that will be the bad one. hope this helps.

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1 Answer

1997 olds Lss Heard clicking noise for 25 minutes. After clicking stopped, there wasn't much heat. Some heat coming out from defrost in driver's side. Blend door actuator is moving. Heater box is warm....


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Dec 07, 2009 | 1997 Oldsmobile LSS

1 Answer

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3 Answers

1985 Olds Cutlass Air Blowing out Defroster vent


The most common problem that causes this is a bad temp control, the actual selector module in the dash of the car. Try replacing this.

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1 Answer

1996 honda passport defrost has stopped working


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