[DeTomaso] High Oil Pressure all of the sudden

[Will Kooiman]

If you short the wire to ground, it pegs the needle, so I think so.

--
Will





On 4/3/13 12:36 AM, "Rob Dumoulin" <rob at dumoulins.net> wrote:

>Doesn't the sending unit send a ground to the gauge and dirty contact
>would
>show less oil pressure?
>On Apr 2, 2013 11:31 PM, "michael at michaelshortt.com"
><michaelsavga at gmail.com>
>wrote:
>
>> I had a similar problem, it was a dirty contact on the sending unit.
>>Pull
>> off the wire, brake clean spray everything and put it back on ensuring a
>> snug fit. Problem went away.
>>
>> Michael Shortt
>> On Apr 2, 2013 10:31 PM, "Rob Dumoulin" <rob at dumoulins.net> wrote:
>>
>>> I'm a frequent glancer at my gauges. Always have been. Tonight I took
>>>1488
>>> to dinner and on the way back I noticed the oil pressure gauge almost
>>>to
>>> 70
>>> PSI at 2K RPM.  At idle it backs down to about 45 and engine off, it
>>>goes
>>> to zero. Normally, it would stay about 35 PSI at 2K RPM and my drop
>>>just
>>> below that at idle.  I pulled off and made sure the sensor wire was not
>>> shorting out anywhere obvious and limped it home.
>>>
>>> Oil was changed about 2 weeks ago, so it's fresh. Level is perfect.
>>>It's
>>> about 70 degrees here and the engine temp is normal. It's a nice cool
>>> night, but no different than other nights or days recently I've gone
>>>out.
>>> Because it has never happened before, it got my attention. What would
>>>make
>>> that happen?
>>>
>>> Rob
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>>
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