bomba aceite

companeros quisiera que me informaran si la bomba de aceite se puede cambiar por la parte de abajo sin sacer el motor picuk ram 1500 2003 motor 3.7. el detalle es que pierde presion y se prende el marcador de gaches, la aguja del marcadior se va haciaabajo.. le puse un marcador manual y marca entre 10 y 14 libras.. espero cpmentareiows.. gracias .

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Dodge Ram 1500 SL 3.7L V6 2003

ENGINE OIL PUMP PICKUP, REPLACE
On some models oil pump pickup can not be removed from pump. Pickup must be replaced with oil pump as a unit.
It is recommended to change oil filter when replacing oil pump pickup.
1.Lift and support vehicle using a suitable lift.
2.Drain engine oil from oil pan.
3.Remove oil pan from engine.
4.Remove any pickup support bracket fasteners if equipped.
5.Remove pickup mounting fasteners to oil pump.
6.Remove oil pump pickup from pump.
7.Reverse procedure to install, note following:
a.Fill engine oil to specified level.
b.Run engine at idle for approximately 30 seconds and turn OFF.
c.Ensure engine oil is still at specified level.