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Reply to "oil pressure Gauge not working. how can i test it see if gauge or sending unit ?"

My original temperature gauge will get to the red zone within 30 seconds of starting the car and then will drop down to near zero a moment later and then spring back to the red zone.  I had an additional more modern and accurate temperature gauge installed that in normal driving almost never passes 160*F.  In traffic and in warm weather, it might get to 180-190* and yet I still get unnerved when I see my old gauge head to the red.

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