The door on my car will not close and I have to slam it to get it to close.
The door striker pin on the body side will loose the center plastic over time and when it is gone, then it will not push the door latch closed enough to lock and slamming the door is needed to get the latch to lock. The door striker needs replaced. I recommend you have a mechanic, like ones from YourMechanic, come by and replace the door striker.
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