Question about 2002 GMC Envoy

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Actuator was replaced and now transmission is slipping

Would the repair of the actuator have anything to do with the transmission slipping, it has 220,000 miles on Envoy

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  • GMC Master
  • 1,311 Answers

When you actuator, I assume you mean the one for the front drive splined disconnect. This would not cause transmission slippage. With your mileage, the transmission is due for an overhaul.

Posted on Apr 20, 2014

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 1998 gmc sonoma push button 4x4 busting diaphram vacuum actuator

On top of the transfer case is a vacuum switch with 3 vacuum lines connected to it. This switch controls when vacuum is applied to the vacuum actuator. This switch can fail partly and allow fluid from the transfer case to be sucked up into the vacuum lines and anything connected to them as well. When you replaced the actuator before, did you notice any oily fluid inside of it?

Posted on Dec 23, 2008

canbruce75
  • 1776 Answers

SOURCE: need to have an actuator and/or module replaced on

Go to the autozone website at autozone.com and register your vehicle. It's free and you will have access to a full online repair manual for your vehicle. You can look at the procedures for making whatever repair you need to make and decide for yourself if it is a job that you feel comfortable tackling. Sure hope this helps and best wishes.

Posted on Jul 23, 2009

  • 50 Answers

SOURCE: My 2002 GMC Envoy transmission slips into neutral

try adding fluid and if still slipping neeed to have it checked could just need a fluid change

Posted on Oct 16, 2009

  • 6 Answers

SOURCE: My 2005 Envoy is coming up P2176 Trottle

please note that if your vehicle battery drain to less than five volts or battery disconnect without computer memory saver will set that code. first where your battery drain or disconected or the computer just throw that code , if battery where drain or disconected you will need to take your vehicle to a dealer and have them perform throttle relearn or a reputable shop with a compatible scan tool . if battery not aconcern check electronic throttle body for binding ,sticking foreign material ,carbon if any present cleaning or replace is recomend and relearn






Posted on Feb 25, 2011

  • 1311 Answers

SOURCE: 2003 gmc envoy XL where is the blend doors

Here is a diagram of the front HVAC system.

freddyboy61_15.jpg

Posted on Aug 29, 2011

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2011 ford Torres.transmission slipping,could it be a censor,computer problem?where is the dip stick for tranny?


run the fault codes
shifting all over the place could be problem wiring/connections, TCM, ECM , transmission oil pressure , dirty oil, problem vacuum actuator, leaking vacuum hoses to actuator
Check with a service center for the dip stick but Ford along with other manufacturers have done away with the dip stick
take it to a specialist transmission service shop for a proper diagnosis but be wary if a new transmission is suggested
It is working but not as it should which suggest mainly , wiring, or TCM problems

Sep 27, 2016 | 2011 Ford Taurus

1 Answer

My 2003 GMC ENVOY won't shift out of park


Automatic Transmission Shift Lock Control System
The automatic transmission shift lock control system is a safety device that prevents an inadvertent shift out of PARK when the engine is running. The driver must press the brake pedal before moving the shift lever out of the PARK position. The system consists of the following components:
?€¢
The automatic transmission shift lock control solenoid


?€¢
The automatic transmission shift lock control switch

With the ignition in the ON position, voltage is supplied to automatic transmission shift lock control switch. Voltage flows through the normally closed contacts of the automatic transmission shift lock control switch to the automatic transmission shift lock control solenoid. The automatic transmission shift lock control solenoid is permanently grounded. This energizes the automatic transmission shift lock control solenoid causing the transmission shift lever to be physically locked in the PARK position. When the brake pedal is pressed the contacts in the automatic transmission shift lock control switch open, de-energizing the automatic transmission shift lock control solenoid. This allows the shift lever to be move out of the PARK position.
Shift Lever Does Not Move with Brake Pedal Depressed ?

2

  1. Turn ON the ignition.
  2. Press and hold the brake pedal.
  3. Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
Go to Testing for Intermittent Conditions and Poor Connections
Go to Step 3

3

  1. Turn OFF the ignition.
  2. Disconnect the automatic transmission shift lock control switch.
  3. Turn ON the ignition, with the engine OFF.
  4. Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
Go to Step 7
Go to Step 4

4

  1. Turn OFF the ignition.
  2. Leave the automatic transmission shift lock control switch disconnected.
  3. Connect a test lamp between the A/T shift lock control solenoid supply voltage circuit at the automatic transmission shift lock control solenoid and a good ground.
  4. Turn ON the ignition with the engine OFF.
Does the test lamp illuminate?

5

  1. Turn OFF the ignition.
  2. Connect a test lamp between the ignition 1 voltage circuit of the park lock solenoid and a good ground.
  3. Turn ON the ignition with the engine OFF.
Does the test lamp illuminate?
Go to Step 6
Go to Step 9

6

  1. Turn OFF the ignition.
  2. Connect a test lamp between the ignition 1 voltage circuit of the park lock solenoid and the park lock solenoid ground circuit.
  3. Turn ON the ignition with the engine OFF.
Does the test lamp illuminate?
Go to Step 8
Go to Step 11

7

Inspect for poor connections at the harness connector of the automatic transmission shift lock control switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 14
Go to Step 13

8

Inspect for poor connections at the harness connector of the park lock/automatic transmission shift lock control solenoid assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 14
Go to Step 12

9

Repair the open or high resistance in the park lock solenoid ignition 1 voltage circuit. Refer to Circuit Testing or Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 14
--

10

Repair short to battery positive voltage in the A/T shift lock control solenoid supply voltage circuit. Refer to Circuit Testing or Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 14
--

11

Repair the open or high resistance in the park lock solenoid ground circuit. Refer to Circuit Testing or Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 14
--

12

Important: Depress the button on the side of the shift lock actuator. With the button is depressed, cycle the plastic straw within the shift lever 3 to 5 times. The straw should move smoothly and freely except near the top of the travel where additional force will be required to mechanically actuate the park lock mechanism inside of the shift lock actuator. If there is stick/slip or abnormal friction while cycling the plastic straw or if the straw is altogether stuck in the lever, the entire control assembly (shifter and shift lock actuator) needs to be replaced. Refer to Transmission Control Replacement . If there is no abnormal friction, replace the shift lock actuator. Refer to Automatic Transmission Shift Lock Control Actuator Replacement .
Did you complete the replacement?
Go to Step 14
--

13

Replace the automatic transmission shift lock control switch. Refer to Stop Lamp Switch Replacement in Lighting Systems.
Did you complete the replacement?
Go to Step 14
--

14

Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 2

Jul 09, 2016 | GMC Cars & Trucks

1 Answer

P2107 code for at truck f 350 5.4


throttle actuator control module processor ----causes faulty throttle actuator control module check repair or replace -----throttle actuator control module harness has open[broken line] or shorted test repair or replace------throttle actuator control module circuit has poor or damaged electrical connection check clean ,repair or replace as necessary

May 14, 2014 | Cars & Trucks

1 Answer

Blower VENT DOOR NOT WORKING RIGHT ON 2009 SEBRING


Either something blocking or binding the actuator or actuator or door failure or calibration,if you hear a clicking noise when changing to vent mode under dash area this indicates the actuator internally slipping and will need to be replaced

May 05, 2014 | Chrysler Sebring Cars & Trucks

1 Answer

Replaced Actuator and now transmission is slipping


Difficult to say, I would ask, "Why did you change your Actuator" Making Assumptions that there might have been an existing issue before you choose to change or repair the Actuator. But in general no the actuator has no effect on the Transmission slipping, have you done a filter and trans oil change? verify your oil levels...

Apr 15, 2014 | 2002 GMC Envoy

1 Answer

Where is the air door actuator located on a 2000 chevy astro?


Same as first set of instructions:
Mode Valve Actuator Replacement - Left Side Removal Procedure
  1. Remove the floor air outlet (center) from the vehicle.
  2. Remove the vacuum connector.
  3. Slide the actuator off the mounting bracket in order to remove the actuator.
  4. Rotate the mode door linkage down.
  5. Rotate the actuator (2) so that the actuator linkage slips off the post on the mode door linkage.
    Remove the actuator linkage from the mode door linkage

Mar 22, 2012 | 1999 Chevrolet Astro

1 Answer

My son replaced his clutch master cylinder on his 2001 Camaro 3.8 because the clutch would re-engage after 1 second (or so) while the pedal was depressed. He now needs to bleed the line/master cylinder...


1/4" or equivilent hose will do, the actuator, or slave cyl, is installed by the clutch plate, inside the transmission, but there should be a cut out in the case where the bleeder is located. loosen this up with a hose slipped onto it, and submerg it in fluid, then just pump the heck out of it, tighting after it is pumped, then pump it again/close it-pump it/close it...etc.


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Jan 06, 2011 | 2001 Chevrolet Camaro

1 Answer

When you move the controls in the heat position you have no heat but a thumping sound up under the dash


your blend door is not actuating. The door may be jammed or the actuator gears may be slipping. Remove the actuator and check the door for free operation. If the door is jammed, you may need to open the heater box to unjam. If it is free, replace the actuator.

It looks like the actuator is right on the front of your heater box--see diagram below.4ad64fe.gif

Oct 03, 2010 | 2001 Ford Windstar

1 Answer

Ignition switch actuator arm repair


these are tricky i have done this several times on the same make and model it sounds like the linkage has slipped out of the actuator in the column

Mar 16, 2010 | 1995 Ford F150 Styleside Regular Cab

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