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Posted on Jan 02, 2017
SOURCE: locating the crankshaft sensor
The crankshaft sensor is a sensor that is on the front of the motor. If you look at the front of the motor look around the bottom pully there should be a sensor behind that pully.
Posted on Apr 13, 2009
SOURCE: location of crankshaft sensor
Hello mitchoreb: My name is Roger and I will be glad to help with your answer. You will need to raise the vevicle in order to see the sensor. Make sure to use safety stands when ubder the vehicle when raised up.Look in the area behind the oil filter.Just in front of the knock sensor.This will be just above the oil pan rail.The knock sensor is a round sensor with a round plug.The crank sensor should hove a oblong plug. You should have a picture along with this reply. Should you need any further help please just ask. Please rate the answer you received as this way we know you recived helpful information. Thank You for using FixYa.Roger
Posted on May 09, 2009
The crankshaft position sensor (POS) is located on the oil pan facing the gear teeth (cogs) of the signal plate. It detects the fluctuation of the engine revolution.
After replacement, ECM reprogramming is required.
This vehicle may be subject to voluntary recall, CAMPAIGN I.D. # R0606, that involves the crankshaft position sensor:
Quote: Nissan has determined that on some 2003 - 2004 Altima and Sentra vehicles with the 2.5 liter engine the operation of the crank angle sensor is significantly affected by variations in temperature that occur due to the unique location of the sensor in the engine. Under certain driving conditions, these variations in temperature can be large enough to cause a brief interruption in the signal output from the sensor. If the interruption in the signal from the sensor is so brief that the Electronic Control Module (ECM) logic does not have time to diagnose the condition, the engine may stop running without warning while the vehicle is driven at low speed.
Posted on Jun 29, 2010
They are not easy to get to. They are were the engine and transmission mates together. 2 bolts to remove. You cant reach them by hand. Takes a long extension and ratchet. This is the easy part. Once loose and out, you have to get access to the plug. The sensor is at the drivers side, upper part of the transmission. The plug is on the passengers side. Doing this on a lift sucks, on the ground really sucks. Be prepared to have scratches, cuts and blood running down your arm. BTW, Both bolts have to go back in, if not, be prepared to do it again.
Posted on Mar 09, 2016
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