2002 GMC Sierra 1500 Latches, locks and linkages Problems

“I have a 2002 Gmc sierra z71 4x4 truck, regular cab with an 8 foot bed. It has 75000 miles. The problem I'm having is both of the outside door handles stick open a little after you pull the handle to open the door and get in. Now when you put the truck in gear, or start moving the doors lock automatically. When you stop and put the truck in park the doors automatically unlock. Now since the outside door handle is stuck slightly open the door won't unlock or open with the inside handle, you have to reach outside push the handle in then you can unlock and open the door. …”

“Neither the left nor right cargo gate latch bolts failed to engage when the gate was in the full upright position and where it should have latched. This allowed the gate to fall open when accelerating. Lubrication with a silicone wax spray did not seem to free the bolts. Repeated lifting of the center handle on the gate followed by quick release did not result in the latch bolts engaging and the handle subsequently broke with minimal effort. Once the handle was removed, contact points on the remaining handle hardware and latch bolts then allowed free movement of the latch bolts. …”