Question about Chevrolet Monte Carlo

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Where does distributer vacuum go to and vacuum to transmission go to

Replaced motor and just don't know where vacuum to distributer and modulator valve go to

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  • Chevrolet Master
  • 14,585 Answers

Either one has to go to true vacuum. Either to the carb/throttle body or the intake manifold. They do not go to heat operated vacuum sensors.

Posted on Jun 22, 2014

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Posted on Jan 02, 2017

  • 125 Answers

SOURCE: how replace a transmission modulator valve on

It is located on the transmission with a vaccume line going to it. There is a clamp with a bolt that holds it to the transmission. It is an easy fix.

Posted on Oct 10, 2009

  • 645 Answers

SOURCE: I need to find and replace the modulator valve in

its located on the rear of the transmission on the passenger side.it may have a metal shield that may make it a litte hard to remove. it will take a 1/2 socket to remove it also a drain pan to catch trans fluid.

Posted on Mar 24, 2010

skychief2001
  • 21873 Answers

SOURCE: transmission vacuum modulator

Most common problem is the transmission fails to up-shift to the next gear.

Posted on Aug 25, 2012

  • 74 Answers

SOURCE: how to change a modulator valve on a 2000 hyundai sonata

doesnt have one electronic internal valve

Posted on Oct 24, 2012

teds_repairs
  • 2101 Answers

SOURCE: how to replace vacuum modulator on 1999 monte carlo

there is none on your car. it is all shift solenoids now.10_30_2012_10_58_45_am.gif

Posted on Oct 30, 2012

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My 1980 caprice wont shift like it not getting proper vacum for transmission


Replace the vacuum modulator valve on the transmission . First off I would test it . You would need to buy a hand held vacuum pump ! and find the vacuum hose at the transmission an test for vacuum there . Do you know what a vacuum modulator valve is ? Google 1980 Chevy Caprice transmission vacuum modulator .

Oct 03, 2015 | Cars & Trucks

1 Answer

Located transmission vacuum module at on the car 1997 honda accord


images for transmission vacuum

Vacuum Modulator Service.wmv - YouTube

? 6:00
www.youtube.com/watch?v=u7S9mDqWguY
Dec 19, 2011 - Uploaded by GrumpysTravells How to remove and clean the vacuum modulator air filter. ...Transmission modulator replacement (early GM 4T60-E models) -

Sep 24, 2015 | 1997 Honda Accord

1 Answer

I have an 91 bronco with an automatic transmission that wont shift on its own. It will shift fine if you run it through the gears automatically,but doesn't shift when its in drive.


91-bronco-automatic-transmission-wont-h3u3bvaxgt5rbqkhjnnyjnme-5-0.jpg
this is the modulator this one is pre-adjusted for A4ld
91-bronco-automatic-transmission-wont-h3u3bvaxgt5rbqkhjnnyjnme-5-2.jpg
this is the other one that is adjustable for the c-6 trans
91-bronco-automatic-transmission-wont-h3u3bvaxgt5rbqkhjnnyjnme-5-5.jpg
E40D trans they are all different and maybe you'll find it now there is 4.9 motor 5.0 5.8 and all can come with A4ld /E40D / or C6 transmission look for broken or disconnected vacuum lines or if the engine is running rough you must correct the running condition because you are loosing vacuum inches and the trans needs vacuum at a certain level to shift if the engine stutters your loosing the vacuum and it will never shift that's what this sounds like to me or that modulator needs adjustment or to be replaced later man! it's party time!

Mar 20, 2015 | 1991 Ford Bronco

2 Answers

When I turn the heat on the drivers side only kicks out cold air while the passenger side kicks out hot air...


The blend door is not working right or the in car air temperature sensor is faulty.
Removal & Installation Air Inlet Door Vacuum Motor To Remove:
  1. Remove the instrument panel.
  2. Remove the air inlet door motor mounting screws. CAUTION
    Do not attempt to bend any part of the air inlet duct door lever.
  3. Rotate and remove the air inlet door vacuum control motor.
To Install:
  1. Rotate and install the air inlet door vacuum control motor.
  2. Install and tighten the mounting screws.
  3. Install the instrument panel.
Defroster Door Vacuum Motor To Remove:
  1. Remove the passenger air bag module from the instrument panel.
  2. Disconnect the vacuum line and remove the mounting screws. CAUTION
    Do not attempt to bend any part of the defroster airflow mode door lever.
  3. Rotate and remove the vacuum control motor from the defrost door lever.
To Install:
  1. Rotate and install the vacuum control motor on the defrost door lever.
  2. Install and tighten the mounting screws.
  3. Connect the vacuum line to the vacuum control motor.
  4. Install the passenger's air bag module.
Floor Console Register Duct Vacuum Motor To Remove:
  1. Remove the floor console.
  2. Remove the right-side instrument panel insulator.
  3. Working from the passenger's footwell, disconnect the vacuum hose.
  4. Remove the screws and the floor console register duct vacuum control motor. CAUTION
    Do not attempt to bend any part of the floor console register duct door lever.
  5. Rotate and remove the vacuum control motor from the floor console register duct door.
To Install:
  1. Rotate and install the vacuum control motor on the floor console register duct door.
  2. Install and tighten the mounting screws.
  3. Connect the vacuum hose to the floor console register duct vacuum control motor.
  4. Install the insulator under the dash.
  5. Install the floor console.
Panel/Floor Door Vacuum Motor To Remove:
  1. Working through the driver footwell, remove the two screws and the shield. CAUTION
    Do not attempt to bend any part of the airflow mode door lever.
  2. Label and disconnect the two vacuum hoses.
  3. Remove the mounting screw.
  4. Lift, rotate and remove the panel/floor door vacuum control motor from the door lever.
To Install:
  1. Install the panel/floor door vacuum control motor on the door lever.
  2. Install and tighten the mounting screw.
  3. Connect the vacuum hoses in their original positions.
  4. Install the shield on the vacuum motor.
Auxiliary Air Distribution Blend Door Actuator To Remove:
  1. Remove the right rear quarter trim panel access panel. Auxiliary climate control housing removal and installation ford-10-00-4589.gif

  2. Remove the auxiliary air distribution blend door actuator screws.
  3. Disconnect the auxiliary air distribution blend door actuator connector.
To Install:
  1. Connect the auxiliary air distribution blend door actuator connector.
  2. Install the auxiliary air distribution blend door actuator screws.
  3. Install the right rear quarter trim panel access panel.
Auxiliary Temperature Blend Door Actuator To Remove:
  1. Remove the right rear quarter trim panel. Auxiliary climate control housing removal and installation ford-10-00-4589.gif

  2. Disconnect the temperature auxiliary temperature blend door actuator connector.
  3. Remove the temperature auxiliary temperature blend door actuator screws.
  4. Remove the temperature auxiliary temperature blend door actuator.
To Install:
  1. Install the temperature auxiliary temperature blend door actuator.
  2. Install the temperature auxiliary temperature blend door actuator screws.
  3. Connect the temperature auxiliary temperature blend door actuator connector.
  4. Install the right rear quarter trim panel.
--- In-Car Temperature Sensor Removal & Installation To Remove:
  1. Remove the instrument cluster finish panel.
  2. Disconnect the in-vehicle temperature sensor connector.
  3. Disconnect the in-vehicle temperature sensor aspirator tube.
  4. Remove the in-vehicle temperature sensor screws.
  5. Remove the in-vehicle temperature sensor.
To Install:
  1. Install the in-vehicle temperature sensor.
  2. Install the in-vehicle temperature sensor screws.
  3. Connect the in-vehicle temperature sensor aspirator tube.
  4. Connect the in-vehicle temperature sensor connector.
  5. Install the instrument cluster finish panel.
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Oct 07, 2010 | 2004 Ford Freestar

1 Answer

87 buick century won't shift out of first


The first thing is to check the transmission fluid level, then check the vacuum modulator located out on the side of the transmission, and be certain that the vacuum line is connected to the vacuum modulator, and that the vacuum line also has no leaks and it is connected to an intake manifold vacuum source. If you remove the vacuum line from the vacuum modulator and if there is any transmission fluid is in the vacuum line then the vacuum modulator is faulty and it will need to be replaced.


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Sep 21, 2010 | 1987 Buick Century

1 Answer

Motor is burning transmission fluid. As we're driving down the road, white smoke starts pouring out of the tailpipe.


on the lower part of the transmission on the radiator is a vacuum modulator that probably has a bad diaphram. If you locate it take the hose off and see if trans fluid comes out. if so replace the vacuum modulator.You will still see smoke for awhile until cleans out of the exhaust.

Feb 09, 2010 | 1994 Chevrolet Beretta

2 Answers

I have a 1987 crown vic that I purchased, the prev. owner said that they had the O/drive disconnected as they only drove it in town, all the mech. linkage is connected, it only drives in first, so what do...


Just perhaps they didn't know the vacuum modulator either is shot,disconnected or suffering from a broken vacuum hose.Jack up the car and look for the modulator,it's a round cylinder that sticks out of the transmission housing.It has a vacuum hose attached to it.The amount of vacuum your engine creates causes the trans to shift to the next gear.Pull of the vacuum line,take a clean WHITE rag or napkin.Wipe the modulator where the hose was connected and check it for transmission fluid.A white rag will show the red fluid as being red,any other color rag and you won't be able to tell it from motor oil which is light brown in color.Red oil,change the modulator because it's leaking.You can verify it by creating a vacuum at the modulator port.Don't create a vacuum by sucking on the end of a hose,unless you crave the taste of trans oil.Use a vacuum pump.It will hold the vacuum pressure 15 to 20 lbs., no more than that or you can ruin the modulator your self!Now if there's no oil and it holds a vacuum trace the vacuum line and look for leaks.Connect your pump to the line and create a vacuum,you'll find that leak in a heartbeat!Good luck!

Dec 09, 2009 | 1987 Ford Crown Victoria

1 Answer

1980 El camino three speed, having a sudden loss


Try replacing the ignition module and check the pick-up coil for broken wires. The wires on these pick-up coils are solid and after years of use can break inside of the insulation. Also check the vacuum advance hose for cracks and the unit for proper function. The vacuum advance pulls the pick-up coil and rotates it to advance the timing causing the wires to break. To change the pick-up coil you will have to pull the distributer out of the engine and disassemble it, meaning that you will have to remove the gear from the bottom and pull the shaft out which may not be easy because of years of grime build-up inside of the distributer housing. Also check the vacuum modulator on the transmission (the cylinder looking thing that the vacuum line from the engine connects to) for trans fluid in the line and being sucked into the engine. Usually when its bad you'll notice white smoke coming from the tailpipe.

Dec 05, 2009 | 1987 Chevrolet El Camino

1 Answer

Vacuum leak in dash- 97 areostar..


The leak is from the Vacuum Motors on the Air Distribution Box for the Climate Control system. Please go back to your transmission and check it for Trans Fluid in the Vacuum line going to the Trans Vacuum Module. The Module will be on passenger's side of trans near the Trans Pan, there may be a shield covering it. Pull the line off the module & see if fluid comes out

Mar 29, 2009 | 1997 Ford Aerostar Extended

1 Answer

Transmission sometimes shifts hard into next gear.


Typiclly this is caused by a failing Pressure Control Solenoid. Now in some cases, since you are in the 1996 model year you may have a vacuum modulator that controls the shift firmness that can be replaced as it is externally mounted. I dont know how best to describe what it looks like, but look down on your transmission, on the front side facing the radiator and if you see a canister like device that has a vacuum line running to it, that is the vacuum modulator and you could start by replacing that and see if it helps.

If you do not have the vacuum modulator and have instead the electronically controlled version of your transmission then you will have a Pressure Control Solenoid and it, unfortunately, is located on the inside of the transmission and cannot be easily replaced without dropping the whole transmission.

The pressure control solenoid is a common issue with your transmission (4T65) and Im leaning more towards you have the electronically controlled version (4T65E).

Feb 02, 2009 | 1996 Buick Regal Olympic Gold

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