Chevy Suburban/Blazer Rear Tailgate Window Regulator motor replacement

WINDOW LIFT MOTOR INSTALLATION GUIDE
REMOVING THE ORIGINAL
MOTOR
IMPORTANT NOTE: You are
urged to refer to a suitable
service manual before
attempting to make repairs.
If you do not have such a
manual, or lack the experience,
you should seek the services of
a qualified technician.
Make these three checks to
Avoid Warranty Problems!
1. Make sure you check that
glass is not binding.
2. Make sure you check window
switch functions.
3. Make sure you lubricate the
window regulator.
BEFORE YOU BEGIN,
READ THIS:
It is easy to replace a window
lift motor. However, you must
take proper precautions to
assure a safe, trouble-free
installation. Park the vehicle in
a level, well-ventilated area.
Set the parking brake to avoid
inadvertent movement. There
must be enough room to fully
open the doors for easy access
to the window regulator and
window lift motor.
CAUTION: If the vehicle is
equipped with a seat belt (safety
belt) system or air bag system
that is attached to the door, refer
to a suitable repair manual to
make sure you have the tools, skill
and knowledge to remove and
correctly install such systems.
.REMOVE ORIGINAL MOTOR
1. Raise window to the full “up”
position. Support glass with
cloth-backed (duct) tape. If
window cannot be raised
and is in a partially down
position, it must be supported
to keep it from falling into
the window well during
motor removal.
2. Disconnect the ground cable
from the battery.
3. Remove door trim panel and
moisture barrier.
4. Remove bolts or rivets
securing regulator/motor
assembly to inner door panel.
Then remove attaching bolts.
5. Disconnect motor electrical
lead.
6. Move regulator assembly
rearward and disengage
rollers from sash channel, if
so equipped.
7. Remove regulator assembly
through access panel in door.
8. Important! Before removing
the motor from the regulator,
secure the sector gear so it
can’t move. Injury can result
if the sector gear is not
locked into position. To do
this, drill a 1/4” or 3/8” hole
through the backplate and
gear. Install a 1/4” or 3/8”
bolt and nut to lock sector
gear in place. DO NOT drill
hole closer than 13mm (1/2”)
to the edge of sector gear or
backplate.