Century Estate Wagon L4-151 2.5L VIN R TBI (1987)
Oil Pressure Switch (For Fuel Pump): Locations
LH Rear Of 4-151, VIN R Engine
The Engine Oil Pressure Sender/Switch is located on the rear of engine, below exhaust manifold.
Buick Workshop Service and Repair Manuals
Relays and Modules - Fuel Delivery and Air Induction >
< Idle/Throttle Speed Control Unit|Specifications
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