Easy step by step guide on how to replace an automotive window motor and regulator,
though the configuration may vary slightly the process is the same, this information
pertains to most vehicles.
Difficultly Level - 4
Begin the vehicle on level ground, engine "OFF" with the parking brake set, using
a basic set of tools while wearing gloves and protective eye wear. (Warning; Some
older electric window regulators are equipped with a helper spring that can have
tension, use caution when disassembling.)
Tools and Supplies Needed
Metal scribe or equivalent
Test wire leads w/clips
Protective gloves and eye wear
Torx driver set
- To access the window regulator and motor assembly the door panel
must be removed. Visit -
Complete guide on
door panel removal
Remove Door Panel
Step 2 - Gently remove the plastic door cover, this cover is used to keep
moisture away from the door panel.
Remove Plastic Door Cover. Step 3 - Locate the window mounting bolts, the window may need to be raised
or lowered to access these bolts.
If the window motor is non operational grasp the window to force up or down to
gain access, or use a small wrench or socket to remove inside the door frame.
Access Window Mounting Bolts
Step 4 - While having a helper supporting the window, remove the window
mounting bolts from the window regulator, once the bolts have been removed the window
will become loose in its track and door frame.
Remove Window Mounting Bolts Step 5 - While the glass is loose in its track, raise the window until
it contacts the upper portion of the frame.
Step 6 - While holding the window in place, use masking tape to secure
the window from dropping down and possibly breaking inside the door.
This step keeps the glass out of the way while removing the regulator and motor.
Masking Tape Window Step 7 - Locate and remove the window regulator bolts, now gently allow
the regulator to sit inside the door until the motor is removed. (Note: They are
connected to each other with cables.)
Removing Regulator Bolts Step 8 - While the regulator is resting inside the door, locate and remove
the window motor mounting bolts. (Note: In this application the bolts can be loosened
Remove Motor Bolts Step 9 - After both the motor and regulator bolts have been removed, locate
the motor wiring harness connector, press the release tab to disconnect.
Press to Release Connector Step 10 - Remove the regulator and motor assembly through the large access
Removing Motor and Regulator Step 11 - Window regulator and motor removed.
Window Motor and Regulator Removed Step 12 - Match the old unit to the new to ensure a proper installation.
(Note: Check the electrical connectors as well.)
New Window Motor and Regulator Step 13 - Gently feed the new motor and regulator assembly back into position,
this can be a little tricky so hang in there.
Install New Window Motor and Regulator Step 14 - Once the motor and regulator has been re-positioned, re-install
all mounting bolts leaving them loose until all have been installed.
Install Regulator and Motor Bolts Step 15 - Using a ratchet or wrench tighten the motor and regulator mounting
Tighten Window Motor Bolts Step 16 - Feed the electrical connector through the access hole and reconnect
it to the door wiring harness.
Reconnect Motor Electrical Connector Step 17 - While holding the window in place, remove the masking tape and
lower the window into the new regulator.
Un-Taping Window Step 18 - Once the window is lowered into place, thread in and tighten
the mounting bolts. You may need to turn the ignition switch "ON" and work the window
switch to position the regulator cradle so the mounting bolts can be installed.
Install Window Mounting Bolts Step 19 - Recheck all mounting bolts for tightness and re-install the
plastic weather liner and door panel assembly.
Re-install Plastic Liner Step 20 - Once the job in complete, turn the ignition switch to the "ON"
position and test both up and down actions of the window motor.
Test Window Motor Operation Helpful Information
Electric windows are controlled by three main parts; motor, regulator and a control
switch which can fail in many ways, some of the more popular failures include non
operation (stuck), window loose in its track sitting down in the frame while the
In some cases there are minor adjustments for the window rails to re-position
the window if needed, check vertical operation for hard spots or clicking noises.
All power window system are protected by a fuse which should be checked if the
window is non-operational.
The window motor can short out and stop working, or work very slowly.
The control switch short circuits, due to excessive amperage draw from a
worn out motor.
Article first published