Hey everybody, Ive got a unique problem ( I think )
In my 98 Blazer, my drivers side door lock will not stay locked when the power is on. It just locks then pops right back unlocked. But when the key is out or in off position, it will lock fine. What does this sound like to you guys?

 

Maybe the switch is shorting out? Take the panel off and look at the connections and wires. Clean em up a bit with some electrical cleaner and see if it helps. Oh and make sure that the manual lock plastic piece is on right otherwise you'll find yourself locked in your truck a few times