Question about 1991 Buick LeSabre
How do I remove the front left front door panel of a 1991 buick LeSabre to replace the power window motor?
Don it. Good half day for amateur. Get Chilton 86-99 Bonneville, 88, Lesabre manuel.. Tricky to find bolts are under end flaps on door close handgrips. Took me a day to figure that one out. Others under light at lip of back of door. Book indicates to strart with window 3/4 up if you can. Flip up window control at rear of panel. After all screws are out raise outer edge of armrest and look for notches 4" and 11-1/2" from rear of armrest to slide inward to remove. There are screws under the door handle too. Screws everwhere. When pulling bottom of panel from door lift with a notched bar to avoid tearing the fasteners out of the cardboard panel. Two screws behind seatbelt notch at top need to come out to allow positioning the glass. The panel at the bottom of the top opening can be removed for more fredom in positioning the glass when reinserting the ball in the lower track on the window. Tape glass with duct tape to keep it from falling. Drill the factory rivets that hold the old regulator and I replaced with stove bolts with nylon locknuts slotted head to the inside the car. Can't remember the size, probably 1/4 or 3/16". Remove speaker if in front bottom of door to use your hand to do work in the door. You must twist the regulator forward with window 1/2 down to remove the ball from the socket in the bottom sliding metal track at the bottom of the window. Don't drop the window after removing the socket, tape it in place. Don't know what you do if you cannot move it to 1/2 up position. By the way, the body shops say you must use rivets, not screws or it will shift, but I have had no problems with the screws for reinstallation several years old. The rivet they use take a big hydraulic pop rivet gun that you won't have. Good luck, I don't envy you. Need to do other window on my 91. The window control may not be the same on the Custom, mine is the Ltd. you may be able to remove the motor from the regulator in the door without removing the regulator if you can figure out how to get the bolts that hold the moter to the regulator. inside the door.
Posted on Jan 02, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Dec 10, 2016 | 1991 Buick LeSabre
Passenger Front Door Module (PDM)
LH Rear Door Module (LRDM)
RH Rear Door Module (RRDM)
Driver Door Switch Assembly (DDSA)
RH Front Power Window Switch
LH Rear Power Window Switch
RH Rear Power Window Switch
LH Front Power Window Motor
RH Front Power Window Motor
LH Rear Power Window Motor
RH Rear Power Window Motor
Class 2 serial data circuit
Power door serial data circuit
PWR WDO 30 Amp Circuit Breaker
DRVMDL Fuse (10 amp)
Driver Door Switch Assembly and Driver Door Module logic, Driver Door Module internal driver operation
PASS MDL Fuse (10 amp)
Front Passenger Door Module logic and internal driver operation
RRDR MDL Fuse (10 amp)
Left Rear Door Module and Right Rear Door Module logic and internal driver operation
Do you know about computer controlled power windows ?
Power Windows Operation
The vehicle is equipped with power windows controlled by the door modules. Each passenger door window can be operated, either from a switch built into the driver door switch assembly (DDSA), or from a switch mounted locally to its associated door. The driver door window can be operated only from the driver door window switch built into the DDSA.
When a window is operated from the DDSA, the DDSA interprets the window switch signal as a specific window switch request and sends the information to the driver door module (DDM) via the power door serial data circuit. The DDM examines the request and checks to see if it has received any class 2 serial data messages from any of the other vehicle modules (i.e. ignition switch position) prohibiting the movement of the window. If the window being operated is the driver door window, and if no prohibitive class 2 messages have been received, the DDM then applies voltage and ground to the driver door window motor to move the window glass as requested. If the window being operated is a passenger door window, and no prohibitive class 2 messages have been received, the DDM sends the request, via the power door serial data circuit, to the appropriate passenger door module. The passenger door module then applies voltage and ground to the passenger door window motor to move the window glass as requested.
When a passenger door window is operated from the power window switch mounted locally to its associated door, the passenger door module first checks to see if the DDM has received any prohibitive class 2 serial data messages. If there are no prohibitive messages, the passenger door module powers the associated passenger door window motor.
Both front door windows have the express down feature. This allows the front door windows to be fully opened by momentarily pulling the appropriate window switch lever to the second detente and then releasing.
Oct 30, 2016 | Buick Cars & Trucks
Aug 19, 2014 | 2003 Buick LeSabre
Sep 12, 2011 | 1994 Buick LeSabre
May 28, 2011 | 1991 Buick LeSabre
Aug 05, 2010 | 2000 Buick LeSabre
Aug 02, 2010 | 2001 Buick LeSabre
Feb 02, 2010 | 1997 Buick LeSabre
May 29, 2009 | 1999 Buick LeSabre
May 25, 2009 | 1998 Buick LeSabre
648 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: