'89 200T: Low Oil Pressure warning

[Larry C Leung]

Does your 200 have an oil pressure gauge? You can cross reference to
that. Also, there are  indeed two oil pressure switches, they both should
be checked. Finally, if you check your owner's manual, you are probably
running oil that is too thin for summer conditions, personnally, I run
Mobil 1 15W-50 once the temperature stays above freezing, 10W-30 in the
winter. Also, with the turbo, I'd strongly recommend running synthetic
oil, which is less prone to coking in the turbo than conventional oils. 

LL - NY

On Thu, 19 Jul 2001 20:32:46 -0600 Barton Oleksy <barto at nait.ab.ca>
writes:
>I'm talking about the computer display of an oil can, which the 
>manual
>says is a warning of low oil pressure.
>
>We had this on the '89 200T about 2 months ago or so - only happened
>when the engine was warm, and only when idling (say at a stop light) 
>or
>perhaps as we would come to a stop.  Local shop replaced an oil 
>pressure
>switch of some kind, and the problem went away.
>
>NOW IT HAS RETURNED!  Same local shop confirmed replacement of this
>switch (with a new one).  Asked about oil, figured it was probably 
>still
>5W30 from winter, so they did an oil change to 10W30.  Problem 
>*seemed*
>a little better at first, but now is still doing the same thing.
>
>If I come to a stop but pop it into neutral and keep the RPMs up a 
>bit
>(means braking with left foot - yikes), the light doesn't come on.
>That's no way to drive, of course.
>
>Local shop thinks maybe the dual oil sending unit (I'm just passing 
>this
>along, don't know more details than that).
>
>Another shop thought there were TWO switches (one ground, one open) 
>so
>it could be one of those, maybe only replaced one earlier...?  Or 
>else
>something more major like the crank bearing is no good or missing or
>something...which means a pretty big repair job, apparently.
>
>Any other thoughts?  Or more details needed?  Thanks for any and all
>advice/suggestions...
>
>Bart
>'86 CGT
>'89 200T
>'91 200Q
>