Question about 1995 Oldsmobile 88

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I have a 95 olds 88 work car. The fan works but hardly any air comes out of any vents, I suspect blend door stuck. where is the actuator?

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Posted on Jan 02, 2017

redds55
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SOURCE: hot air coming out of

Low on freon get it charged

Posted on May 16, 2011

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SOURCE: where is the blend door actuator on a 88 olds 98 regency brougham and what does it look like

The system in your car is all vacuum controlled so the first this you need to do is locate the main vacuum source under the hood. It is normally located on the passenger side near the firewall. You may see a plastic ball shaped canister or it could be square. Make sure that device has vacuum going to it from the engine

Posted on Sep 03, 2016

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When a/c on the side vent blow cool air but middle two blow hot why


Suspect a blend door motor/actuator not working properly. These doors control hot/cold as well as air flow direction. It may be an electrical or vacuum problem or even a defective motor/actuator causing this problem. In some cases the ducting can come loose that caries the airflow to the vents especially if there was an aftermarket stereo/alarm/remote start has been added as it may have been disturbed during installation. You may want a pro to look at the system as it can be complicated to diagnose

Jul 14, 2015 | 2006 Chevrolet HHR

2 Answers

Side windows on passenger side fog up. Not on driver's side, only on passenger.


so find out which vent is dead,?
before 5 gallon LYSOL flush an a week long GAG !
make sure first never to use RECRIC, when wanting to defog.
and is the A/C running in dash defrost mode (compressor main shaft spins)

if a vent is dead, its a bad damper valve, (not saying a part, a function)
the book is free, you can read it, HVAC. see venting and dampers.
its very simple in concept, a fan, a damper and dry air. hot.
the heater core makes heat the non recirc, damage gives you fresh air, the A/C makes that air dry. and the dampers the supply all vents work work.
so make sure the controls are set right,
then see if the upper vents all blow, with hand waved on them.
see? that is easy, and not reporting a dead vent ,makes help harder.
the FSM is on line, ill look for you.
but first HVAC 101
  1. does blower work on high?
  2. does the recirc turn to fresh are,and you get fresh air with blower off moving, at all top vents. y/n
  3. do you have full heat? 180F + engine heat (scan tool shows this as ECT)
  4. do all vents top work , blower on?
  5. is the A/C compressor working in A/c mode (cold) and Defrost?
  6. more... below.
Rule one, dont work in dash until air bags are DEFEATED (injury) (pull battery neg lug, and wait 1hour)

got fsm page open, ill state some facts needed to fix this.

first ill prove the dash system does not need total dismantle
for all jobs. Does NOT.
Air /mix blend door
Single Zone/Dual Zone Driver's Side(FSM)
  1. Disconnect and isolate the negative battery cable.
  2. Remove the instrument panel silencer from the driver side of the instrument panel.
  3. Remove the three screws that secure the blend door actuator to the driver side of the HVAC air distribution housing .
  4. Remove the blend door actuator from the air distribution housing and disconnect the HVAC wire harness connector from the actuator.
  5. Remove the blend door actuator from the vehicle.

next page, is blend door 2, type.
has vacuum servos.
we move the controls and make sure all servo vacuum motors
work

this car has driver side and passenger side seperate blend doors.
so,,, we are getting close here>
?
if the defroster fails,(seems not) then that is electric motor drive
and very hard to test . (if not door jam)

in any case, we need to know what part is failing,
if the passenger blend is dead.
seen below,
we then must find out why
1: just stuck.
2: servo actuator failure
3: controls to #2 above bad, or connections to each.


25414659-fivq5xl3wt5ieutt12itpjng-5-0.jpg
login to alldata.com see HVAC chapter, read how it works and the tests.

Feb 11, 2015 | 2001 Jeep Grand Cherokee

1 Answer

Cold air comes out the defrost vent all the time. 1994 buick le sabre. no air comes out the front registers.


The most common cause is the blend door actuator. It's the door that diverts air between the floor, vents, and defroster. Sometimes the part will get stuck in 1 position. Some cars have cable driven blend doors, others are electronic.

Jun 02, 2011 | 1994 Buick LeSabre

2 Answers

95 chev. pickup. Cool air comes out at floor. Cannot divert any air to the vents or defroster vent. Can feel warmth on the black plastic box like thing near the floorboard so I know there is warm water...


It sounds like the actuator that diverts the air may have gone out. I would suggest replacing the blend-door actuator so that your air will go to the right places. The blend door actuator shouldn't cost more than $150.

Dec 11, 2010 | 1995 Chevrolet Tahoe

2 Answers

200 Jeep Laredo..Air is cold and fan is blowing,


there is a blend door actuator for the laredo and if is bad the air wont come out here is a pic of what it looks like and how to get to it


The single zone heater-A/C system is equipped with a single blend door actuator. The dual zone system has two blend door actuators, one for the driver side blend-air door and one for the passenger side blend-air door.
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  1. Disconnect and isolate the negative battery cable.
  2. Remove the glove box from the instrument panel.
  3. Remove the three screws that secure the blend door actuator to the passenger side of the HVAC air distribution housing .
  4. Remove the blend door actuator from the air distribution housing and disconnect the HVAC wire harness connector from the actuator.
  5. Remove the blend door actuator from the vehicle
to instal
  1. Position the blend door actuator into the vehicle.
  2. Install the blend door actuator onto the passenger side of the HVAC air distribution housing . If necessary, rotate the actuator slightly to align the splines on the actuator output shaft with those on the blend door cam .
  3. Install the screws that secure the blend door actuator to the passenger side of the air distribution housing . Tighten the screws to 17 inch lbs. (2 Nm).
  4. Connect the HVAC wire harness connector to the blend door actuator.
  5. Install the glove box into the instrument panel.
  6. Reconnect the negative battery cable.

Sep 09, 2009 | 1998 Cadillac Seville

1 Answer

98 Olds LLC - AC works but fan air does not blow


If you have a late model GM car and the system is controlled electronically the blend door actuator becomes weak. When this situation occurs it will not move the air direction door inside of the heater/air conditioner plenum. in your case not to the vents Replace the actuator with new and recheck the system. i hope this helps

Jul 24, 2009 | 1995 Oldsmobile Cutlass Ciera

3 Answers

2003 Trailblazer Air Conditioner fan runs but no air out vents


thereis an actuator controling the flap t may be cracked causing the problem

Jun 24, 2009 | 2006 Chevrolet Trailblazer

3 Answers

2004 Ford Expedition XLT, front blend door actuator


Hope I was avle to help, glad you up and going.

May 26, 2009 | 2004 Ford Expedition

2 Answers

Heating system only blows out hot air through the vents


I would look at the air blend doors first, it sound like they are not working or your control in the dash is not working send a signal to them. they work by changing the air from hot to cold or in between.

Avalanche, Sierra And Silverado
  1. Remove the floor air outlet duct extension (1) from the floor duct (2). 0900c152801c9c8a.jpgRemove the floor air outlet duct extension (1) from the floor duct (2)
  2. Disconnect the electrical connection at the blend door actuator (10). 0900c152801c9c8b.jpgBlend door actuator and related components
  3. Remove the blend door actuator mounting screws from the HVAC module.
  4. Remove the blend door actuator as an assembly with the actuator cam. 0900c152801c9c8c.jpgRemove the blend door actuator mounting screws from the HVAC module
To install:
  1. Install the blend door actuator as an assembly with the actuator cam.
    1. Line up the heater/defroster valve lever with the blend door actuator cam slot.
    2. Line up the A/C valve lever with the blend door actuator cam
  2. Install the blend door actuator mounting screw to the HVAC module.
    1. Tighten the blend door actuator mounting screw to 14 inch lbs. (1.6 Nm).
  3. Connect the electrical connection at the blend door actuator (10). 0900c152801c9c8b.jpgBlend door actuator and related components
  4. Install the floor air outlet duct extension (1) to the floor air duct (2).
C/K Series
  1. Disconnect the electrical connector to the mode actuator that is located on the left side of the air distribution case.
  2. Remove the screws.
  3. Remove the adjuster links from the control lever.
  4. Remove the mode actuator.
  5. Adjust the mode actuator by completing the following steps:
    1. Connect the electrical connector to the actuator.
    2. Turn the ignition switch to the RUN position. Allow the self-positioning of the actuator.
    3. Turn the ignition switch to the OFF position.
    4. Remove the actuator from the electrical connection. 0900c152801c9c8d.jpgBlend door actuator-C/K Series
To install:
  1. Install the mode actuator.
  2. Install the screws.
  3. Install the adjuster links to the control lever.
  4. Connect the electrical connector.
  5. Test the circuit operation

Nov 27, 2008 | 2001 Chevrolet Silverado

1 Answer

Blend door not working.


The bleed door controls air temp not where it comes out, dash, floor, defroster, this is most likely a mode control switch problem, that switch is on the ac control head.

Sep 23, 2008 | 2001 Dodge Ram 3500 Truck

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