Body - Power Liftgate Won't Open/Close Is Noisy
Classification: EL09-024Reference: ITB09-043
Date: September 10, 2009
2004 - 2010 QX56; POWER BACK DOOR WILL NOT OPEN/CLOSE AND MAKES NOISE
APPLIED VEHICLES:
2004 - 2010 QX56 (TA60) with power back door.
IF YOU CONFIRM:
While operating the power back door (lift gate),
^ The power motor will not open or close the door,
and/or
^ There is a grinding and popping noise inside the rear trim panel.
ACTION:
1. Check for loose or missing bolt on the power back door motor assembly.
^ Replace if needed.
2. Check for bent or damaged power back door motor mounting brackets.
^ Replace if needed.
IMPORTANT:
The purpose of ACTIONS (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire Service Procedure as it contains information that is essential to successfully completing this repair.
PARTS INFORMATION
CLAIMS INFORMATION
SERVICE PROCEDURE
1. Access the power back door motor assembly.
^ Remove left side finishers as needed.
^ Refer to the Service Manual as needed, (section BL 2004 - 07, section DLK 2008 - 2010).
^ Bolt A shown in Figure 1 will need to be removed.
NOTE:
You may not need to completely remove the lower luggage finisher. Unclipping the top and pulling it back may give you enough access.
2. Check bolt "B" (see Figure 1).
^ If bolt B is loose or missing, replace it with a new one.
^ New bolt is listed in the parts information.
^ Apply Permatex(R) Medium Strength Threadlocker BLUE (or equivalent) to the threads of the new bolt and torque bolt to: 5.7 N�m (0.6 kg-m, 51 in-lb)
NOTE:
If bolt B is missing, make sure to find the missing bolt and remove it from the vehicle. The missing bolt, if left loose in the passenger compartment, could cause a rattle.
3. Check both mounting brackets.
^ If mounting brackets are bent or damaged, replace with new brackets (see Figure 3).
^ New brackets are listed in the Parts Information.
^ Torque for back door motor mounting bolts is: 5.7 N�m (0.6 kg-m, 51 in-lb)
NOTE:
^ Figure 3, is a close up view of the mounting brackets. The brackets can be replaced without completely removing the motor assembly.
4. Reassemble all parts in reverse order.
^ Apply Permatex(R) Medium Strength Threadlocker BLUE (or equivalent) to the threads of bolt A and torque bolt to: 15.2 N�m (1.6 kg-m, 11 ft-lb)
5. Make sure the power back door motor works correctly with no abnormal noise.
^ Cycle the power back door (open and close) 5 times.
NOTE:
^ Each bracket is held on with 2 screws.
^ Re-use screws and torque to:
5.7 N�m (0.6 kg-m, 51 in-lb)