Crankshaft position sensor replacement? old sensor snapped.

Hi,

You could have a bad sensor however, if you have not learned the CKP sensor then that will cause the type of issues you are getting. When replacing the sensor the PCM needs to learn the new sensor so it can locate the windows of the tone wheel.

You need a scan tool to do this but before we do that try to do what is called a TLC relearn. That means go to a safe location and accelerate up to 65 MPH and then decelerate down to under 40 MPH with no brake or accelerator input. Do this 4 times in a row and it will force a relearn procedure. This may cause the PCM to relearn the crank as well. If this doesn't work then we will need to have a scan tool and perform a crank relearn procedure. That should correct the concern. Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed. Thanks

I was trying to change out the crankshaft position sensor and the front snapped off. i tried to get it with a pair of needle nose pliers an it fell into the oil pan. what do i do now?

I'd ignore it and pop in a new sensor. That piece is going to land in the lower part of the pan where the oil pump pickup tube sits, and that has a screen on it to prevent those parts from being sucked up. The screen sits too close to the bottom of the pan for that sensor to become lodged under it and block oil flow. You can pick the piece out some day when you have to remove the pan to replace it or to reseal it.

The check engine code on my truck said I needed a crankshaft sensor. I have looked but could not locate the sensors location . So can you please help me in finding where it is at exactly? A picture of its location would be extremely helpful.

It is on the right rear of the block, behind the starter.

on a 4.7 its on the right side under the exhaust manifold of the rear cylinder no where near the starter which is on the left (drivers side)


My crankshaft position sensor broke off in the housing when trying to replace it. Can someone please tell me what is located directly behind the sensor? We have tried drilling a hole through the old sensor and using a screw to pull it out but was unsuccessful. We have tried to pry the old sensor out with another failure. I know that dropping the oil pan would be the proper thing to do in this situation. I need to know what is directly behind the crankshaft position sensor and also would I have to pull the motor to drop the oil pan? Detailed information would be greatly appreciated!

What is behind it is the crankshaft. You have the right idea with drilling the old one but if that does not work. you do not have much choice but to drop the pan. Make sure you force some carburetor cleaner and then WD40 into there to loosen the varnish up.

New reman long block was installed in the truck. The 2nd start of the motor resulted in 1391 code, although the engine ran great. Both cam and crank sensors were replaced and ECM was reset. Engine still ran great and again, on the 2nd start, the check engine light came on and returned the 1391 code. I am at a loss as to where to go next...any clues?

to return that quickly, it is an electrical issue. check all your wires for good connections.

was this problem there with the old motor??

Roy

It was never a problem prior to installing the new motor. Do you think it would be a grounding problem or an electrical feed issue?

re check all your connections and grounds.

do you have a scan tool, not as code reader??

Roy

Pfrobably an issue with the wiring somewhere that was disturbed when the harness was moved around for the engine change, assuming you used the exact same replacement engine.

I need to replace the crankshaft positioning sensor in my dakota, but I can't seem to find whereit is located. Please help if you can.

Check the image below

Engine Performance problem
1998 Dodge Dakota 6 cyl Two Wheel Drive Automatic

need an image of where does it goes?

REMOVAL The sensor is bolted to the top of the cylinder block near the rear of right cylinder head. The sensor is accessed by removing the right front fender liner.

I have the 98 Dakota 2 wheel drive , 5 speed, 2.5L 4 cylinder. My crankshaft position sensor is located at the top driver side of the front of the tranny . 2 bolts and a plug at the driver side top of engine firewall. Easy to change it out.

The distributor is on the passenger side of the engine, below where the sparkplug wires are attached.

I was told that sometimes you can take it off and see if it has metal shavings attached to it , that you can simply wipe it off and put it back on. The sensor is merely a magnet attached to a wire that feeds to the ECM

my check engine light come on and off. i check it out and #1,2,3,4,5, cyll. are misfiring. 6 mos ago my truck would not start i found my crank sensor was no good i replace it that when its started. i repace cap,rotor,spark plug and wires and pick up coil. did i install the crank sensor wrong or does it need to be replace or is their somthing eles wrong

Hi george hall. Welcome to the forum. Since the problem started with the new crank sensor, are you aware of the need to set the proper air gap? There are two ways to do this. Replacement sensors from the dealer use a thick paper spacer that is stuck onto the end of the sensor to set the gap. It just slides off when the engine is started. Some aftermarket replacement sensors have a thin plastic rib molded on the end. It wears away when the engine runs. When that type is removed and reinstalled, the remaining rib must be cut off and a paper spacer is used.

caradiodoc

I just replaced the crankshaft sensor and attempted to start the truck. It attempted to turn over and then stopped attempting. It turned into a no crank condition. What could cause this to happen?

If the starter stopped working, check to see if there is power to the smaller wire when the ignition switch is in the start position. If there is power, chances are the starter went bad. If there is no power, check the starter relay to see if there is power there and the relay is working.

how do i replace the crankshaft sensor and where is it located

Its on top of cylinder block rear of right cylinder head.It should have a bolt holding it in remove the bolt and then remove the crank shaft sensor.