Rep: 25
1
Where should I start? If the temperatures are over 80 degrees the power locks don't work right, I can hear the mechanism trying to lock or unlock but the button cant move enough to lock or unlock the door.
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Rep: 1
3
The general answer is that it could be a bad door actuator or a bad ground connection for that actuator. A bad switch would affect all the door actuators. Usually, door actuators either work or they don't; they're usually not intermittent. So, I would start by cleaning the ground connection to that actuator to eliminate the possibility of a bad ground. Next, I'd check for corrosion inside the electrical connector to the actuator.
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Had this same issue 2008 Impala 3.5L. Search youtube for video of replacing door lock actuators cheap. He bought 4 cheap actuators on amazon. With a little work I replaced all 4 of mine in a few hours. They r wired into the factory wiring so they work like factory locks. Zone Tech Car Universal High Power Door Lock Actuator - Premium Quality Heavy Duty Durable Automotive Locking Mechanism (2-Pack) https://a.co/d/cdQqjeQ the video on youtube shows detailed installation. Its not a hard job for most anybody.
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4 Comments
@imthebookkeeper what exact year and model is your Impala? Does this mean none of the doors unlock when it is "Hot" (80 deg F is pleasantly warm but not hot).
by oldturkey03
It’s a 2008. And it’s kinda random. In the morning while it’s still cool the doors seem to work as it gets hotter then maybe one won’t work- the hotter it gets the worse the locks get. Subjection aside- I said over 80 is where it starts.
by imthebookkeeper
@imthebookkeeper ;-) that does sound like an issue with the actuator. Let me check for a wiring diagram. Does this only happen when you use your key or does it happen with the main switch on the drivers door as well?
by oldturkey03
@oldturkey03 my key fob doesn't work for the locks anymore at all- only the trunk. I can open the door with my key without issues, its just using the door lock button on the door that it does this and its the same with the buttons on both doors.
by imthebookkeeper