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In 2005, the Chrysler Sebring came with a 2.4-liter four-cylinder engine in base trim and a 2.7-liter V-6 for Touring, Limited and TSi models. Both of these engines had a multi-port fuel injection system, which means there is a fuel injector mounted above each intake valve. Because of this design, the fuel injectors must be pulsed at a certain time to deliver fuel into the combustion chamber. This is where the camshaft position sensor comes in. It is used to determine the location of the camshaft; allowing the Powertrain Control Module to determine when injection should take place.
Items you will need
- Socket set
- Torque wrench
- Fresh engine oil (2.7-liter only)
- Heat shrink crimp connectors (2.4-liter)
- Pliers (2.4-liter)
- Lighter (2.4-liter)
2.4-liter EngineStep 1
Open the hood and find the camshaft position sensor on the back of the cylinder head, below the PCV valve and hose. Disconnect the PCV hose from the PCV valve.
Disconnect wiring harness for the camshaft position sensor. Remove the mounting screws with a socket and ratchet, then remove the sensor from the engine. Remove the screw that holds the magnet to the camshaft and pull the magnet off the camshaft. Inspect the magnet for cracks or obvious discoloration and obtain a replacement, if needed, before proceeding.
Align the locating pins on the back of the magnet with the locating holes on the end of the camshaft, then push the magnet onto the camshaft. Install the retaining screw and tighten it to 30 inch-pounds with a torque wrench. Install the camshaft position sensor and tighten the mounting bolts to 115 inch-pounds. Connect the wiring harness to the sensor. If the wiring harness doesn’t match the sensor, follow the instructions in the pigtail replacement section. Reconnect the PCV hose.
2.7-liter EngineStep 1
Open the hood and find the camshaft position sensor on the passenger side of the cylinder head, between the cylinder head and the coolant bypass hose. Disconnect the wiring harness from the camshaft sensor.
Remove the mounting screw with a socket and ratchet, then pull the camshaft position sensor out of the cylinder head. If the coolant bypass hose is too close to the sensor, tilt the sensor toward the hood to remove it.
Coat the O-ring on a new sensor with fresh engine oil. Push the sensor into the chain case cover until the you feel the sensor touch the boss on the head. Hold the sensor in place and install the mounting screws. Tighten the screws to 105 inch-pounds, then plug the wiring harness into the camshaft position sensor.
Pigtail ReplacementStep 1
Cut the wires just before the connector on the wiring harness for the camshaft position sensor. Cut away one inch of coating from each wire on the engine's wiring harness. Slide a heatshrink crimp connector onto each wire of the new pigtail.
Match up one of the wires on the new pigtail to the corresponding wire on the engines wiring harness, then twist the wires together. Do this for the other two wires.
Slide the crimp connector over the bare portion of wire and crimp it down with pliers. Make sure the heat shrink extends at least 1/4-inch over the wire coating on each side. Apply heat to the crimp connector to shrink the tubing and seal the wire. Do this for the remaining wires.
- Do not over-tighten the screw that secures the magnet to the camshaft on the 2.4-liter engine -- it will break the magnet.
- Prodemand.com: 2005 Chrysler Sebring (2.4 and 2.7); Components; Camshaft Position Sensor