Question about 2007 Chevrolet Tahoe

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Liftgate opens only partially on 2007 tahoe

The liftgate opens only partially and then proceeds to close fully.

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Try removing your shocks/struts for the lift gate. once removed, check to see if they fully extend in and out of the barrel. You may have bent shocks/struts. Also, check to see there is nothing preventing the lift-gate from opening such as a bolt or acorns between the spoiler and the roof...

Posted on Jul 01, 2009

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Posted on Jan 02, 2017

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Tailgate only open 1/3 way than closes 2008 tahoe


Your liftgate has obstruction sensors, if obstruction is detected in the power mode, the liftgate will reverse. Has a sensor on each side of liftgate. I don't know if replacing sensor/s will fix it, but, that would be my first thought. I hate to see you replace anything and it not fix it.
Your owners manual should give you info on lift gate operation. If you want my diagram for lift gate, holler and I'll post it.

Sep 28, 2016 | 2008 Chevrolet Chevrolet Tahoe LTZ

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LIFTGATE MOTOR WENT OUT. HOW CAN I OPEN THE DOOR MANUALLY?


chevy tahoe lift gate not opening - YouTube

? 2:12
www.youtube.com/watch?v=xU6ybiY3F4I
Sep 1, 2010 - Uploaded by 76bluemoon Back lift gate/glass would not open or release. ... Wow, are you sure? .... known issue with tahoe, suburbans, hummers and othergmc vehicles. ... 2007-2012 Yukon Denali Rear Door Lock Actuator Replacement ... 2004 GMC Yukon XL rear liftgateremoval - Duration: 50:17. by Velvethamma 5,814 views.

Aug 08, 2015 | 2007 GMC Yukon XL Denali

1 Answer

2007 yukon,lift gate will not open electrically or manually?


You should still be able to open itmanually? Unless the lock is not functioning. There may be a plastic plug that pops off on the inside of the liftgate panel so that you can open it. You have to remove the plug and then move the lever with a screw driver. All that being said most likely have some broken wires in the boot at the top of the liftgate where it connects to the body. These wires tend to break from constant flexing when the liftgate is opened and closed. Either way you have to get the liftgate open to inspect them

Feb 17, 2015 | 2007 GMC Yukon

1 Answer

What are the common problems when a 2001 Lincoln navigator lifegate won't open


Do you have power lift gate ?
The power liftgate may not operate under the following conditions:
  • a low voltage or dead battery.
  • a disconnected battery.
  • a power liftgate that has been left open for more than six hours.
  • a power liftgate that has been manually closed and left ajar.
If any of these conditions has occurred, the power liftgate must be reset before performing any pinpoint tests. For additional information, refer to
Power Liftgate Initialization NOTE: If the power liftgate system is turned OFF in the message center, the system cannot be activated with any switches or with the liftgate handle. The system will need to be turned ON for any power operation to occur.
NOTE: The power liftgate may not operate under the following conditions:
  • a low voltage or dead battery.
  • a disconnected battery
  • a power liftgate that has been left open for more than six hours.
  • a power liftgate that has been manually closed and left ajar.
If any of these conditions has occurred, the power liftgate must be reset.
  1. Manually close and fully latch the power liftgate.
  1. NOTE: If the power liftgate does not open during this step, refer to the symptom chart to diagnose the power liftgate for no operation.
    Power open the power liftgate by using the keyfob or overhead console switch.
  1. Once the power liftgate is fully open, close the power liftgate by using the keyfob or overhead console switch

Jan 16, 2015 | Lincoln Cars & Trucks

1 Answer

I have a chevy traverse 2009. The power tailgate wont stay up on the strut. it was working fine the day before. the gate opens to the fully open position before slipping resulting in the gate closing


It's now a recall item. See below.


NHTSA CAMPAIGN ID Number: 15V415000
Component: STRUCTURE:BODY:HATCHBACK/LIFTGATE
Manufacturer: General Motors LLC
Potential Number of Units Affected: 686287

Year: 2009
Make: Chevrolet
Model: Traverse
Manufactured
from: 2008-07-06
to: 2012-02-29
Recall Date: 2015-06-30
-->
Summary:

General Motors LLC (GM) is recalling certain model year 2008-2012 Buick Enclave vehicles manufactured January 3, 2007, to February 29, 2012, 2009-2012 Chevrolet Traverse vehicles manufactured July 6, 2008, to February 29, 2012, 2007-2012 GMC Acadia vehicles manufactured September 15, 2006, to February 29, 2012, and 2007-2010 Saturn Outlook vehicles manufactured August 17, 2006, to March 18, 2010. The affected vehicles, equipped with the power liftgate option, have gas struts that hold the power liftgate up when open. These struts may prematurely wear and the open liftgate may suddenly fall.

If the open liftgate unexpectedly falls, it may strike a person, increasing their risk of injury.

GM will notify owners, and dealers will update the software for the power liftgate actuator motor control unit so that the motor will prevent the rapid closing of the lift gate, free of charge. Owners were mailed interim notices on August 3, 2015. Owners will receive a second notice when remedy parts become available. Owners may contact Buick customer service at 1-800-521-7300, Chevrolet customer service at 1-800-222-1020, GMC customer service at 1-800-462-8782, and Saturn customer service at 1-800-553-6000. GM's number for this recall is 15240.

Jan 01, 2013 | 2009 Chevrolet Traverse

1 Answer

2007 suburban liftgate problem


The gas charged lift supports are in need of replacement, due to the leak, it loses its strength to fully go up and keep it up,also change in pairs for best results and reliability, they are available from a local parts store.

Mar 19, 2012 | 2007 Chevrolet Suburban

2 Answers

I have a 2007 Suburban, and the lift gate opens up about 1/4 the way and then drops to the closed position. This happens regardless of how it's opened.


{: ) Your liftgate struts (shocks) could have gone weak. If it's a power liftgate, press the off button to disable the power liftgate function, so that you can open the liftgate manually. With a little help from you, extend the liftgate at full open position and check if it will hold itself up there as it normally should. If it starts to fall off as you catch it, that means the liftgate struts don't have enough pressure anymore to push and sustain the weight of the liftgate. Check for signs of leak on the struts, or better if you can replace it both.

Aug 02, 2011 | 2007 Chevrolet Suburban Three-Quarter-Ton...

1 Answer

I have a 07 Chevy tahoe..the rear door opens halfway than closes??


{: ) Try to disable the power lift system , there is an on/off switch located at the center console or overhead console. Then try to open it manually and see if it will hold at full open. If it falls back, then you have a weak liftgate strut, and you will need to replace both.
Or if you can't disable it for some reason, you can give it extra help while on its powerlift up but dont force too much. If it goes up successfully when you applied little help, remove your hand and check if it goes down. But if you feel that the liftgate wants to return back while halfway, remove your hand and let it be.
Was there a time when your liftgate is open, then starts to close and then reopens again at 1/3 on the way? The cause of this may be a sharp sheet metal edge inside the inner roof panel chafing the liftgate harness. And if you got B153 codes just in case, you may do some wiring checks and remove the panels at the rear roof area and look for that gray connector with 22 pins located under the center of the rear headliner panel.

Jun 13, 2011 | 2007 Chevrolet Tahoe

1 Answer

My rear lift gate on 07 tahoe opens and closes its self weather the key is in the ignition or not, opens 1/2 way closes 3/4 then all the way up and all the way down, sometimes it sets off the car alarm- it...


Operation
A power open or close cycle can only be initiated from the fully closed or open positions while the vehicle is in park and the liftglass ajar switch input to the liftgate module is inactive. At any time during a power open or close cycle the operation can be reversed by pressing any of the open/close switches. The power liftgate can be switched to manual mode with the on/off switch in the overhead console and during manual operation the power latch will still operate. During power liftgate operation the liftgate module continuously monitors the liftgate position and load profile. The position is calculated from hall effect sensor counts and the electrical load of the gear motor is used to determine physical resistance to the liftgate. Both of these profiles must be learned before the liftgate can operate properly and relearned any time most liftgate components are serviced.


Object Obstruction Detection
The liftgate control module continuously monitors power liftgate operation and calculates its location and direction of travel using 2 hall effect sensors that are part of the gear motor assembly. The hall effect sensors are 3 wire sensors and are supplied with a 5 volt power circuit, ground and signal circuits from the liftgate control module. The hall effect sensor signal circuits are referenced from battery voltage within the liftgate control module and pulsed low by the hall effect sensors.
The power liftgate system uses a secondary object detection method which consists of object sensors fixed to both sides of the liftgate near the seal area. The object sensors consist of an internal fixed resistor and normally open switch contacts which when closed will bypass the resistor. The signal circuit is supplied 5 volts through a resistor and monitored within the liftgate control module, and during normal power liftgate operation the signal circuit should remain a fixed value. When an object presses one of the sensors the contacts close and the resistor is bypassed causing the signal circuit voltage at the module to go low.

Gear Motor Assembly
The liftgate motor is a bi-directional motor and open or close operation is the result of the direction of the motor rotation. The liftgate module controls the liftgate motor through the control circuits by suppling power and ground in the appropriate polarity. The motor control circuits are monitored by the liftgate module prior to activation for a high or low condition and during motor operation for any irregular current flow conditions.
The liftgate motor clutch engages or disengages the liftgate motor to the liftgate drive gear and is the component that determines power or manual operation. When the liftgate module supplies power to the clutch control circuit the clutch coil is energized and the liftgate motor is engaged to the liftgate drive gear so that power operation can occur. The liftgate module monitors the clutch control circuit at all times for a short high while in an inactive state or a short low or insufficient current flow while in an active state.
The full open switch is part of the gear motor assembly and will close and become active when the liftgate reaches the full open position. The full open switch signal circuit is supplied battery voltage through a resistor and monitored within the liftgate module. The liftgate provides a low reference circuit and when the switch contacts close the signal circuit goes low and the liftgate module determines the switch to be active.

DTC B153A 00: Liftgate Latch Switch Signal Circuit
DTC B153A 08: Liftgate Latch Switch Signal Circuit Signal Invalid

When calibrating the liftgate position, the liftgate module (LGM) is placed in a functional state to learn the liftgate travel limits. DTC B1019 00 will set automatically as an indicator that the system is in learn mode and not as a fault indicator. Once the travel limits are learned by the liftgate module, the LGM will exit calibration mode. If the LGM does not exit learn mode, DTC B1019 00 will remain current and indicate a fault.
DTC B153B 02: Liftgate Open Switch Signal Circuit Short to Ground
DTC B153B 05: Liftgate Open Switch Signal Circuit Short to Short to Battery or Open
DTC B153E 02: Liftgate Position Sensor Signal Circuit Short to Ground
DTC B153E 05: Liftgate Position Sensor Signal Circuit Short to Battery or Open
DTC B153E 08: Liftgate Position Sensor Signal Circuit Signal Invalid

Your best bet , take it to the dealer .

Aug 08, 2017 | Chevrolet Tahoe Cars & Trucks

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