Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1993 Cadillac Eldorado V8-300 4.9LFACTORY OEM SERVICE PROCEDURE
Window Regulator Assy. (Lock Module)
LOCK MODULE
REMOVE OR DISCONNECT
1. Trim panel.
2. Water deflector.
3. Outside handle and key cylinder lock rods from lock.
4. Three screws securing lock to door.
5. Position window to gain access to window sash bolts.
NOTICE: Support window assembly at run channels.
6. Three sash to window bolts.
7. Wiring harness from lock, window motor and module.
8. Using a 1/4 inch case hardened drill bit, drill out rivets retaining module.
9. Lock module.
INSTALL OR CONNECT
1. Position lock module to door, hang module on inner hooks.
2. Three screws retaining lock to door.
3. Locating rivets using monobolt type rivets and monobolt rivet head in rivet gun.
NOTICE: The upper front and upper rear corner rivets are locating rivets. Install front rivet first then rear rivet.
4. Remaining rivets.
5. Wiring harness.
6. Window sash bolts.
7. Outside handle and lock rods to lock.
8. Water deflector.
9. Trim panel.
Door Lock Module:
REMOVE OR DISCONNECT
1. Trim panel.
2. Water deflector.
3. Outside handle and key cylinder lock rods from lock.
4. Three screws securing lock to door.
5. Position window to gain access to window sash bolts.
NOTICE: Support window assembly at run channels.
6. Three sash to window bolts.
7. Wiring harness from lock, window motor and module.
8. Using a 1/4 inch case hardened drill bit, drill out rivets retaining module.
9. Lock module.
INSTALL OR CONNECT
1. Position lock module to door, hang module on inner hooks.
2. Three screws retaining lock to door.
3. Locating rivets using monobolt type rivets and monobolt rivet head in rivet gun.
NOTICE: The upper front and upper rear corner rivets are locating rivets. Install front rivet first then rear rivet.
4. Remaining rivets.
5. Wiring harness.
6. Window sash bolts.
7. Outside handle and lock rods to lock.
8. Water deflector.
9. Trim panel.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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