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brownjeff, ASE Certified Technician
Category: Dodge
Satisfied Customers: 13886
Experience:  17 years experience, ASE certified, dealership certified, Service Manager for 15 years,
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2003 dodge ram 2500: 5.9 cummins..diagnostic sensor bank

Resolved Question:

I have a 2003 dodge ram 2500 with the 5.9 cummins. It died the other day and the diagnostic computer said cam sensor bank 1a. I have purchased the sensor from dodge, but i cant find a manual for my truck. I need to know where it is located on the motor and is there anything special for me to know in changing it.
Submitted: 9 years ago.
Category: Dodge
Expert:  brownjeff replied 9 years ago.

I will attach instructions along with picture.

If you still need help just reply, if not click ACCEPT when we are done.



The Camshaft Position Sensor (CMP) on this engine is located below the fuel injection pump. It is bolted to the back of the timing gear cover.


  1. Disconnect electrical connector at CMP sensor.
  2. Remove sensor mounting bolt.
  3. Carefully twist sensor from timing gear cover.
  4. Check condition of sensor O-ring.


  1. Clean out machined hole in back of timing gear cover.
  2. Apply a small amount of engine oil to sensor O-ring.
  3. Install sensor into timing gear cover 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 back of timing chain cover. If sensor is not flush, damage to sensor mounting tang may result.
  4. Install mounting bolt and tighten. Refer to Torque Specifications.
  5. Connect electrical connector to sensor.
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