[s-cars] POS maintenance

[Neil Swanson]

Hey all

Yesterday Paul Krumins drove his S6 in with a misfire.
Yeah Paul can drive again. Yeah!

First thought was loose plug but a little digging
turned up a failing POS on the firewall.  I installed
both from my S4 just to be dead sure and that is where
this tip comes from.

Behind each of the POS's you want to have some
Silicone Dilectric grease for heat insulation.  Both
of our cars had none.  If it was there when new it has
long since dried up.  Mine are now greased/insulated
and so will Pauls' be on Monday.  Just put on a bead
and smear it around, reinstall POS.

Many years ago in another life as a mechanic in the
late '70s (not me in my late '70s, the decade) one of
our Volvo customers had a Suburban that on the 3 hour
drive up into VT would always misfire on the same long
grade.  Never did it in town and no new tune-up parts
ever cured it, except renewing the dried up Dilectric
grease under its power stage.

So while I've never seen the grease cure an Audi
misfire it ought to be there.

Neil



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