The problem w/NSS is the location..they get road debries and water/moisture b/c of where they are ...

I have drilled a hole in them , squirt some WD40 in there to displace the moisture and capped the hole with some silicone and had them run fine for a couple more years.

Up in NE we used to have problems with them in the winter b/c the moisture would freeze.......just like the door locks........

Glad the diagnosis was correct ....

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A Dalton