Ford Quick Tips #76: Door Ajar Switch Testing and Replacement

Welcome back to the shop! Let go in depth with some theory and testing of Ford door ajar switches.

A mix of rust penetrant and WD-40 fixes most of these:
Rust Penetrant I prefer-
http://amzn.to/2pTXk94
Follow up with this-
http://amzn.to/2rrmsF5
Long Life Latch Lubricant-
http://amzn.to/2pL16pa

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