"Normal" O2 sensor

[Bruce Plecan]

I would imagine has alot to due with how the gasket fails.
I've seen some that were driven for so long there were erosin problems from
the coolant leaking.  I' ve seen some that were at least worthy of the term
catastrophic.  I can't remember one killing the O2.  Initially might take
some running for them to purge and get good cross counts, but they did live.
This is kinda dated material, have't done a blown head gaket in last few
years.
Grumpy



> >Silicone poisoning can still have relatively good cross counts, and just
low
> >voltage so it looks like fuel but it's the sensor.
> Interesting point there, Oh Conical One. Say, have you or anyone else
> seen the symptoms of a blown headgasket with ethylene glycol-based
> antifreeze going out the pipe and contaminating the O2 sensor. It's
> always referred to as one of the failure modes and especially something
> to check following a head going pop, for diagnosticians, but I've never
> heard/read a description of the actual detailed symtoms at the O2 end,
> like does the output range collapse, shift, just get slow, what?
> Only those having observed an O2 failure shortly after blowing a
> head-gasket, need reply. (I hate the thot of having to search thru a
> bunch of pundit theoreticals, ifyaknowadamean :).
> I also hate the idea of having to sacrifice one (a sensor, I mean) just
> for the learning experience. :)
> Shannen I 'spect would be a likely one to have observed this from his
> dealership experience, as well as any of the rest of you bloaks who are
> especially keen/proficient at blowing head gaskets. :)
> Gar


----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org