Mopar 5149141AF Camshaft Sensor

Disconnect the negative battery cable. Remove the air filter housing and upper intake manifold (bank 2). Disconnect the electrical connector. Unscrew the sensor mounting bolt and pull the sensor. Check the O-ring and apply oil if OK. Insert the sensor and install the mounting bolt. Reverse for installation.

As for the V6 engines, the CMP sensor is placed at the front part of the left cylinder head for the 2.7L engines, and on the timing belt cover for the 3.5 L engines. To replace, lift the vehicle, disconnect the electrical connector-one that has a release tab arranged at the terminal end, if accompanied with the wiring harness clip, clip it off; if not, skip this step, remove the mounting bolt and then the sensor, installation in reverse order, after replacing the sensor perform cam/crank variation learn procedure using scan tool. For 3.5L, on the electrical connector-unlock it and remove it; remove the mounting bolt and then the sensor; if reusing the old sensor, make sure you put back the spacer or if getting a new sensor, you should check and confirm if a new spacer is included; then install the sensor and do the cam/crank variation learn. For the 3.6L engine, there is need to; first remove an engine cover secondly, detach the negative terminal of the battery thirdly, in order to get to the CMP sensor, there is need to perhaps detach the upper intake manifold. Remove the electrical connector, unscrew the fastener and pull the sensor out of the valve cover, clean the threads of the fastener, examine the O-ring and the seal of the sensor, after which screw the sensor in place and go through the cam/crank variation learn. V8 engines on the right part of the timing chain cover housing, specifically on the upper side, has the CMP sensor. First, the engine cover should be unbolted and in addition the negative cable should be disconnected off the battery; then the electrical connector should be disconnected, the mounting bolt removed and lastly the sensor should be pulled out. Old O-ring should be checked and replaced if worn out, the new O-ring should be lubricated with clean engine oil before fitting the sensor and ensuring that it is firmly in place to prevent damage The installation process should then be followed by fitting of the O-ring, Cam/Crank Variation learn.

To remove the camshaft reference sensor on 3.3L and 3.8L models, detach the sensor lead, loosen the bolt, and remove the sensor. If reusing, clean the sensor face and replace the spacer and O-ring. To install a new sensor, ensure it has a paper spacer and mount the O-ring. For the charge temperature sensor, unplug the connector, replace the sensor, and secure it with tape. For the coolant sensor, replace the cap, and the sensor, and check the coolant level. For the crankshaft sensor, unplug the connector, loosen the bolt, remove the sensor, and replace the spacer if reusing. For the TPS, check resistance readings, and replace if it is incorrect.

To disconnect the CMP sensor, start by disconnecting the cable from the negative battery terminal. For 3.6L V6 engines, remove the air filter housing or air intake tube, and if necessary, the upper intake manifold. Disconnect the electrical connector, unscrew the sensor mounting bolt, and pull the sensor from the valve cover. Installation is the reverse of removal.

The computer receive inputs from information sensors which provide it with the current operating conditions of the engine in a bid to adjust the air/fuel mixture, ignition time and the idling speeds in order to have a proper drive ability, lower emissions, as well as having a better gasoline economy. Exhaust oxygen sensors, built in the exhaust manifold or pipe, deliver variable voltage depending on the content of oxygen in the exhaust, which allows the computer to better set the fuel/air mixture. The older models may have just one sensor while the latest models come with multiple sensors located before and after the catalytic converters, with the intent being to check on the efficiency of the converters. Some tasks are better handled by a professional, getting to inspect the oxygen sensor being one of them. For replacement, apply spray lubricant on the sensor, then turn off the electrical connector and then use right tool to unlock it, and also on the threads when screwing it back apply anti seize paste. There are knock sensors that read the detonation of an engine, and their locations also vary depending on the model of the engine and the year of its manufacture, and changing them also require a technician. It measures the temperature of the coolant and is placed in a number of locations depending on the kind of engine; it has to be replaced in such a way that it doesn't spill much coolant. The manifold absolute pressure sensor, that measures the pressure arising from the intake manifold, may be located near the throttle body or on the firewall and the replacement of the sensor requires inspection of vacuum hoses and of electrical connections. The inlet air temperature sensor that relays this information to PCM is commonly located in the intake manifold, or in the air intake hose and replacing them must be done carefully to avoid ruining the sensor. The Throttle position sensor is located at the carburetor or throttle body and measures the movement of the throttle and therefore should best be evaluated by an expert in case of problems. The Crankshaft Position Sensor which is responsible for the correct timing of the engine is mounted either on the transmission bell housing or on the engine and changing it means that one has to align it properly and sometimes requires a relearn procedure. Distance sensors are used to measure the speed and pass a voltage signal to the computer; it can be replaced at the rear or the transfer case. The camshaft position sensor is also used to time the fuel injection system in conjunction with the crankshaft position sensor, and the former may be located differently or replaced in a different manner depending on the model of the engine. The accelerator pedal position sensor in newer models is integrated with the pedal assembly, which means that the whole assembly has to be replaced if is not working.

First of all, disconnect the cable(s) from the negative battery terminal(s). For HEMI, disconnect the electrical connector from the CMP sensor and remove the sensor mounting bolt. Remove the O-ring and inspect. Apply oil on the O-ring and install the sensor. Installation is the reverse of removal.