[DML] Re: copper washer for oil sending unit - new question

["Dave Swingle" <swingle@xxxxxxxxxxx>]

No. Its a low pressure switch, not a low level switch. It's an oil 
pump pressure connection, if the engine is off, nothing will come 
out. 

If you are replacing the switch make sure that the copper washer is the right size - it should be a very close fit as you slide it over the threads. I've seen some around provided with a washer that's just a bit too big, and they leak like crazy because it won't seal agains the block. Also be sure NOT to loosen the back nut that the wire attaches to, that's a very common leak point and it's difficult to tighten as there's no where to grab the back side. 

Dave S

--- In dmcnews@xxxxxxxxxxxxxxx, "Tom Tait" <TTait@xxxx> wrote:
>
> I'm about to replace mine, do I need to drain the oil first?  I 
assume
> that if it is a low oil level sensor that it sits fairly low in the 
sump
> cavity... 
> 
> --- In dmcnews@xxxxxxxxxxxxxxx, "birdwell77095" <birdwells@xxxx>
> wrote:
> >
> > On the driver's side above the oil pan is the Oil Pressure 
Sending 
> > Unit (?) that has a 23 mm plug. Mine is leaking and I think there
> is a 
> > copper washer/o-ring there. Does anyone know if these can be 
picked
> up 
> > at the auto stores or give me other information on type to get?
> > 
> > Shannon








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