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Alternator & oil pressure switch replaced on 2006 CXS


New member
Buick Ownership
2006 Lucerne CXS
I had to replace the alternator on my sons 2006 CXS and also replaced the leaky oil pressure switch that's mounted on the oil filter adapter.
What a P.I.T.A. these R&R's are. Replacing the oil pressure switch was definitely the more difficult of the two.

There's now only a small leak that seems to be from the oil pan gasket so I'll wait til the next oil change to replace it.
Next weekend comes the evaporator core replacement. Not looking forward to that AT ALL.
Last edited:
Pedal Commander