You would have to remove the oil pan to replace it.
On a 1991 Mercury Cougar : The oil pump is INSIDE the oil pan ( the oil pan is bolted to the bottom of the engine )
The oil pump is located inside the oil pan.
Oil pump change
The oil pump is bolted to the bottom of the engine , inside the oil pan
The oil pump is bolted to the bottom of the engine , inside the oil pan
To change the oil pump on a 2002 Mercury Grand Marquis with a 4.6-liter engine, first, ensure the vehicle is safely elevated and supported. Drain the engine oil and remove the oil pan by unbolting it from the engine, which may require removing the exhaust components for clearance. Then, unbolt the oil pump from the engine block, replace it with the new pump, and reassemble by reversing the disassembly steps. Finally, refill the engine with oil and check for leaks before starting the engine.
On a 1999 Mercury Mountaineer , 5.0 litre V8 engine : ( the engine oil pump is INSIDE the oil pan )
The oil pump is bolted to the bottom of the engine INSIDE the oil pan
On a 1997 Mercury Mountaineer , 5.0 liter ( 302 cubic inch ) V8 engine : The engine oil pump is INSIDE the engine oil pan According to my Haynes repair manual in order to remove the oil pan ( to get access to the oil pump ) THE ENGINE HAS TO BE REMOVED * the engine oil pressure sending unit is on the OUTSIDE of the engine beside the engine oil filter
Well, honey, changing the oil pump on a Mercury Mountaineer ain't no walk in the park. You gotta jack up the car, drain the oil, remove the oil pan, disconnect the old pump, install the new one, put everything back together, and refill the oil. If you ain't got the tools or know-how, I suggest you leave it to the pros before you end up with a bigger mess than your Aunt Edna's fruitcake at Christmas.
The oil pump is behind the front cover driven by the timing belt.
how do you change the oil pump on a 1991 s10 pickup