Express 1/2 Ton Van V8-305 5.0L VIN M SFI (1998)
Door Locks: Service and Repair
Front Doors
Door Lock Cylinder
Remove or Disconnect
1. Raise the window completely.
2. Front door trim panel.
3. Water deflector.
4. Outside handle.
5. Clip retaining the lock cylinder lever to the lock cylinder.
6. Press the lock cylinder retainer and remove the lock cylinder from the handle.
Install or Connect
1. Press the lock cylinder into the handle to engage the lock cylinder retainer.
2. Clip to retain the lock cylinder lever to the lock cylinder.
3. Outside handle.
4. Water deflector.
5. Front door trim panel.
Binding Lock Cylinders
Binding or sticking door lock cylinders and keys that are hard to insert or remove may be corrected in many cases by applying the proper lubrication.
The recommended materials for lubricating these components are (in order of preference): Lubricant GM P/N 12345120 (or equivalent). 5W 30 motor
oil. Silicone spray GM P/N 1052276 (or equivalent). Penetrating lubricants (such as GM PIN 1052949 and WD-40®) ARE NOT recommended
because they wash out the original lubrication and eventually evaporate, leaving little or no lubricating material. However, if these materials are used
