It is in the pressure line just behind the pump.
A po551 code is power steering pressure sensor circuit malfunfunction
Back of the engine, next to the distributor.
There is no sensor .
Trouble code P0551 means:Power steering pressure sensor circuit range/performance
The oil pressure sensor on a Dodge Caliber is under the intake manifold on the front of the engine.
Power steering pressure switch.Power steering pressure switch.
Behind carb. at rear of motor with little wire going to it.
Back of the engine, just to the passenger side of the distributor.
Trouble code P0551 means:Power steering pressure sensor circuit range/performance
Left side of engine block, below the injection pump and behind the power steering pump.
The governor pressure sensor is located within the transmission's fluid pan. It's mounted on a bracket with three 11 mm bolts and two #25 torx screws. This was on a '99 Dodge Durango with a 5.9 L motor.