1989 Chevy Corsica Oil Pressure Sensor Location

For the 2.0L engine the oil pressure sender/switch is under the intake manifold, at the right rear of engine. For the 2.8L engines it is near the oil filter, at the right front of the engine. Place a "T" at the sender and use a manual oil pressure gauge to test pressure. If it shows same as the instrument panel gauge then suspect faulty oil pump. If it shows good then suspect faulty oil pressure sender/switch.

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