Why is my oil pressure gauge dropping to zero every time the transmission switches gears?
Apr 13, 2011 at 9:35 PM
Gauges and warning lights
1995 GMC YUKON
EMMARIJO
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Check for a direct ground on the circuit. The gauge is "pegging" due to a direct ground rather than through the sensor.
Test the sensor on the driver's side front of the engine by the spark plug with a multimeter set to ohms. A very low ohms reading from the sensor connector pin to the engine block means replace the sensor.
Test the sensor on the driver's side front of the engine by the spark plug with a multimeter set to ohms. A very low ohms reading from the sensor connector pin to the engine block means replace the sensor.
Apr 14, 2011 at 1:16 AM