Front Glass Run Channel Replacement; Window Regulator Replacement - GMC G Service Manual

10A1-22 POORS
FRONT GLASS RUN CHANNEL
REPLACEMENT
Remove or Disconnect (Figure 29)
• Lower the window completely.
1. Outer window weatherstrip.
2. Door to run channel bolt (107) and nut (109).
3. Run channel from the vehicle.
• Pull the run channel upwards while twisting to
clear the lower bracket.
R
Install or Connect (Figure 29)
1. Run channel to the vehicle.
• Work the run channel into the door frame. Be
certain that the glass is in the channel.
2. Door to run channel bolt (107) and nut (109).
3. Outer window weatherstrip.
WINDOW REGULATOR
REPLACEMENT
MANUAL REGULATOR
H Remove or Disconnect (Figure 30)
1. Door trim panel. Refer to "Door Trim Panel
Replacement."
2. Door window. Refer to "Door Window Replacement."
3. Door panel to regulator bolts (104).
4. Window regulator.
• Collapse the regulator, and remove it through
the access hole in the door.
H Install or Connect (Figure 30)
• Lubricate the regulator and the sash and regulator
rails with lubriplate or equivalent.
1. Window regulator.
• Collapse the regulator, and insert it through the
access hole in the door.
2. Door panel to regulator bolts (104).
3. Door w in d o w s. R e fe r to "D oor W indow
Replacement."
4. Door trim panel. Refer to "Door Trim Panel
Replacement."
POWER REGULATOR
For the diagnosis of power window circuits, refer to CAB
ELECTRICAL (SEC. 8A).
M Remove or Disconnect (Figure 33)
1. Battery ground cable.
2. Door trim panel. Refer to "Door Trim Panel
Replacement."
3. Door window. Refer to "Door Window Replacement."
4. Regulator to door panel bolts (110) and nuts (112).
5. Wiring harness from the regulator.
6. Window regulator.
• Collapse the regulator, and remove it through
the access hole in the door.
CAUTION: The next step must be performed
when the regulator is removed from the door.
The regulator lift arms are under tension from
the counterbalance spring and can cause
serious injury if the motor is removed without
locking the sector gear in position.
• Drill a hole through the regulator sector gear and back
plate. Drill the hole at least 12.7 mm (1/2-inch) away
from the edge of the sector gear or back plate. Install
a pan head sheet metal tapping screw at least 19 mm
(3/4-inch) long into the drilled hole to lock the sector
gear in place.
7. Motor to regulator attaching screws.
8. Motor from the regulator.
H Install or Connect (Figure 33)
• Lubricate the motor drive gear and regulator sector
teeth.
1. Regulator motor to regulator.
• The motor pinion gear teeth must mesh prop­
erly with the sector gear teeth before installing
the motor to regulator screws.
2. Regulator motor to regulator screws.
• Remove the sheet metal screw from the back plate
and sector gear.
3. Window regulator to the door.
• Collapse the regulator, and insert it through the
access hole in the door.
4. Wiring harness to the regulator.
5. Regulator to door panel bolts (110) and nuts (112).
6. Door window. Refer to "Door Window Replacement."
7. Door trim panel. Refer to "Door Trim Panel
Replacement."
8. Battery ground cable.