Low Oil Pressure Mystery

[Douglas Fifield]

The oil pressure sensor was the first thing to get replaced.  Further
testing confirmed low oil pressure.

On Fri, Jul 1, 2011 at 12:34 PM, Grant Lenahan <glenahan at vfemail.net> wrote:
> sending unit out of calibration?
>
> Grant
> On Jul 1, 2011, at 1:28 PM, Douglas Fifield wrote:
>
>> Hedz,
>>
>> Patient is an 01 A4 1.8T belonging to my GF.  The car was bought used
>> with about 80K on the clock.  It has been throwing low oil pressure
>> warnings for some time.  Car needs to be completely warmed up and the
>> warning light flickers on periodically for a few seconds and goes off
>> - usually when going uphill.
>>
>> We dropped the pan expecting to find signs of sludge, but did not.
>> What we did find were small, bright, non-magnetic shavings.  We
>> theorized that the shavings were being sucked up against the intake
>> screen and reducing the oil flow.  Cleaned everything out and buttoned
>> up the car.  Problem was not fixed.
>>
>> Pulled the valve cover thinking that if aluminum was flaking off
>> somewhere, that was the likely place.  All cam bearings look good.  No
>> sign of wear.
>>
>> The engine sounds good.  No knocks or other unusual sounds.
>> Compression is good.  We are puzzled.  Next step is to replace the oil
>> pump. Still no idea of where the shavings might have come from.
>>
>> What does the collective wisdom of the list say?
>>
>> --
>> Douglas in MN
>> 95.5 Audi S//6 Avant
>> 08 Prius Touring (50 mph reg)
>> 73 BMW R60/5 mit Toaster Tank
>> 82 BMW R100S mit Russkie Sidecar
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>
>



-- 
Douglas in MN
95.5 Audi S//6 Avant
08 Prius Touring (50 mpg reg)
73 BMW R60/5 mit Toaster Tank
82 BMW R100S mit Russkie Sidecar