Piston Slap: Spastic Saturn's Spacey Door Locks?

TTAC’s own Ronnie Schreiber writes:

My mom’s ’02 Saturn’s SL1 power locks freak out sometimes, sounds like solenoids are having spasms. I’ll go to lock or unlock them and they’ll start fluttering. Sometimes slamming a door will stop it.

My guess is that there’s a dirty switch somewhere, might be weather related too because it started happening in late autumn. It was easier to diagnose things when they didn’t use logic circuits for everything.

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