Not sure what you mean by rpm sensor. The signal for the tachometer comes from the PCM and is based on signals from the crankshaft position sensor, located on the right rear of the engine where the transmission bolts to the engine, but if this is bad, there are a lot more problems than the tachometer not working. There are two speed sensors on automatic transmissions, an input speed sensor and an output speed sensor. Both are located on the left side of the transmission, the input speed sensor near the front (just behind the bell shaped portion) and the output speed sensor near the rear. In addition to those there are wheel speed sensors for the ABS, located in each wheel area covered by the ABS.
SOURCE: Crankshaft position sensor location - 1991 Dodge Dakota 5.2L
it is on the passenger side on the back off the motor.there are two allen head bolts or 13mm.it goes into the transmission and normally has rubber at the opening.you should be able to gets this from the top follow middle of valve cover on pass. side the go strait back toward the fire wall.please rate this answer.
SOURCE: Camshaft sensor location
The cam sensor on the 4.7 is located toward the forward edge of the right cylinder head (passenger side). This has a 3 wire connector, tan/with yellow tracer is sensor signal, black / light blue tracer wire is sensor ground and the orange is the 5V supply.
SOURCE: Location of oxygen sensor on 2004 dodge dakota
One of them is located on the driver's side of the motor and connects to the exaust manifold.
SOURCE: were is the oil pressure sensor located on a 1992 dodge dakota
It is located behind the breather, on the passenger side of the distributor. If you are having low oil pressure I'll give you a tip. You can change the sensor, but if that doesn't work, then the problem very likely could be that, dodge dakotas are notorious for a buildup of sludge on the screen of the oil pump, which blocks the flow of oil. If you are going to drop the oil pan to address this you may as well put a new oil pump in while you are at it. They are 30-50 dollars. If you can do it yourself, the whole operation should cost less than 100 dollars, if you take it to a garage, you better have a fat wallet.
SOURCE: were is the crankshaft position sensor located on
ANSWER: CRANKSHAFT POSITION SENSOR - 4.7L V-8 ENGINE
REMOVAL
The Crankshaft Position (CKP) sensor is located at the right-rear side of the engine cylinder block CKP Sensor Location/Removal/Installation - 4.7L V - 8 Engine the cranks sensor is positioned and bolted into a machined hole in the engine block
Disconnect CKP electrical connector at sensor.
Remove CKP mounting bolt CKP Sensor Location/Removal/Installation - 4.7L V - 8 Engine
Carefully pry sensor from cylinder block in a rocking action with two small screwdrivers.
Remove sensor from vehicle.
Check condition of sensor o-ring.
INSTALLATION
Clean out machined hole in engine block.
Apply a small amount of engine oil to sensor o-ring.
Install sensor into engine block with a slight rocking action. Do not twist sensor into position as damage to o-ring may result
CAUTION: Before tightening sensor mounting bolt, be sure sensor is completely flush to cylinder block. If sensor is not flush, damage to sensor mounting tang may result.
Install mounting bolt and tighten to 28 N·m (21 ft. lbs.) torque.
Connect electrical connector to sensor.
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