01-03 (04-06?) Dodge Durango 4.7 Camshaft Posistion Sensor Replacement CPS

Published on April 22, 2020
Duration: 12:48

This guide details the replacement of the camshaft position sensor (CPS) on a 2001-2003 Dodge Durango with the 4.7L engine. The video emphasizes using OEM Mopar parts for reliability and recommends replacing both camshaft and crankshaft sensors simultaneously due to their interconnected function. It covers the process of accessing the sensor by removing the airbox, unbolting the old sensor, and installing the new one, highlighting the importance of fully seating the sensor for accurate readings. The presenter also discusses potential causes for the P1391 code, including wiring issues and timing chain problems.

Quick Summary

The P1391 code on a Dodge Durango 4.7L indicates an intermittent signal from the camshaft or crankshaft position sensor, often causing the engine to buck and kick. It's recommended to replace both sensors simultaneously using OEM Mopar parts and to disconnect the battery afterward to allow the ECU to relearn the new sensor inputs.

Chapters

  1. 00:00Introduction & Vehicle Fitment
  2. 00:42Camshaft vs. Crankshaft Sensor
  3. 01:49Cam Sensor Location
  4. 02:01Removing the Airbox
  5. 03:43Disconnecting Battery
  6. 04:36Airbox Disassembly
  7. 06:18Locating the Cam Sensor Bolt
  8. 06:44Unbolting the Cam Sensor
  9. 07:10Understanding Code P1391
  10. 08:00Other Causes for P1391
  11. 09:43Accessing Sensor from Below
  12. 10:24Removing the Cam Sensor
  13. 10:44Disconnecting the Electrical Connector
  14. 10:58Installation Steps
  15. 11:13Ensuring Proper Sensor Seating
  16. 12:16Crank Sensor Mention & Conclusion

Frequently Asked Questions

What are the symptoms of a failing camshaft position sensor on a Dodge Durango 4.7L?

A failing camshaft position sensor on a Dodge Durango 4.7L can cause intermittent issues like the engine kicking and bucking, especially once it warms up. This is often accompanied by an OBD-II code P1391, indicating an intermittent signal from the camshaft or crankshaft sensor.

Why should I replace both the camshaft and crankshaft position sensors at the same time?

It's recommended to replace both camshaft and crankshaft position sensors simultaneously because they work together to inform the ECU about engine timing and fuel mixture. If one is failing, the other is likely old and could fail soon, leading to conflicting signals and poor engine performance.

What tools are needed to replace the camshaft position sensor on a Dodge Durango 4.7L?

For replacing the camshaft position sensor on a Dodge Durango 4.7L, you will primarily need a 10mm socket and ratchet to remove the mounting bolt. A screwdriver may be helpful for prying the sensor if it's stuck, and pliers might be needed for hose clamps related to airbox removal.

What does the P1391 code mean for a Dodge Durango 4.7L?

The P1391 code on a Dodge Durango 4.7L signifies an intermittent signal from either the camshaft position sensor or the crankshaft position sensor. This means the engine's computer is not consistently receiving data from one or both of these critical sensors, leading to performance issues.

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