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The oil pressure sending unit on a 1997 Buick LeSabre is located on the bottom side of the engine, near the oil filter. It monitors oil pressure to ensure that the pump is working properly.
check the oil pressure snding unit first then check the pressure gage if both are good you need to replace oil pump Oil pumps in buick 3800,s do not go bad. Replace sending unit or the oil pump pickup screen is clogged.
The 1992 Buick oil sending unit can be found on the left-hand side of the engine. The oil sending unit will be a few inches above the oil pan.
The PCV valve for a 2001 Buick LeSabre is located in the top of one of the valve covers. It is a plug in unit and is easily changed.
The sending unit, located in the fuel tank, is bad.
It has several sending units such as a fuel gauge sending unit, oil pressure gauge sending unit, temperature gauge sending unit, need to know which one you are looking for.
Most likely the sending unit in the tank which you can check with an ohmmeter.
UNDER HOOD, PASSENGER SIDE, REAR ENGINE AREA, ABOVE OIL FILTER, MOUNTED ON LOWER TIMING COVER
The 1997 Dodge Dakota oil sending unit is in the oil pan, on the bottom of the engine. You will need to remove the oil pan in order to view the sending unit.
loose connector, broken wire, bad sending unit on the pump, etc
Faulty sending unit or shorted wire Worn engine bearings Sludged or defective oil pump Gasoline or water in oil
need to know which sending unit you are looking for, there are several sending units on that vehicle.