On the 2007 Dodge Ram, the crankshaft position sensor is at the rear of the engine block on the passenger side, above the oil pan. Disconnect the electrical connector, remove the attaching bolt, and replace that sensor. An aftermarket sensor may look different from the OEM part but can still be correct.
The owner of a 2007 Dodge Ram asked where the crankshaft position sensor is after seeing conflicting videos. The expert said it is at the back of the block on the passenger side above the oil pan and confirmed that sensor is the crank sensor, even if an aftermarket unit looks different. Later posts about other Ram years and engines describe similar rear-block locations, and one expert noted that cold backfiring and power loss is more consistent with a vacuum leak than a crank-sensor failure.
