Crankshaft position sensor?

Hi,

My father who is very mechanically equipped replaced the crankshaft sensors in my 2002 Deville this morning and now my vehicle will not turn over. Can you please tell me what exactly could cause this and what to do to fix it? Thanks in advance

Thanks for your response, we figured out it was faulty parts. We figured this out by putting the old ones in and it started right up. Thanks again.

I looking to replace the crankshaft sensors on my cadillac and I'm looking for a little guidance/instruction on how to proceed. Pictures would also be helpful. Thanks.

I have a PO335 error code. Where is the upper crankshaft position sensor located? How hard iis to replace?

I have a 2003 Deville. Both sensors (upper and lower) are above and to the front of the oil filter. They are located behind the front engine support. I replaced mine today and thank God I have small hands. It took about 2 hours to remove them. You also have to remove the plastic pan under the front of the car. Installing new sensors ($40 each) went much quicker and no more stalling after driving the car about 1/2 hour. Last night I took the family to a restaurant across town and it stalled twice on the way there. I read on another post that Cadillac dealers charge $300 to replace them. Also, you do not have to drain the oil. The connectors were a pain, until I figured out how to remove them. Be very careful not to break them.

How exactly did you manage to get the crank sensors off. I found a diagram of where thye are but I cant quite see them from under the car. Did you remove the front motor mount or just squeeze your hand in there. And once I do find them, How do I unclip them? Thanks for any help, Ian

Where is crankshaft position sensor located

How can get access to the crank shaft sensor in a 1997 cadillac deville. I already tried but is to hard to access to it. Can you please tell me the easy way?

1997 Cadillac Deville replace crank shaft sensor

how can get access to the crank shaft sensor in a 1997 cadillac deville. I already tried but is to hard to access to it. There ere no space enough to remove the sensor from the bottom of the car, and for the front is worse, do I have to remove any other part?I already remove the oil filter(bottom) but a car braket support is in my way. Can you please tell me the easy way? Or do you have any video.

Computer problem
1996 Cadillac Deville V8 Front Wheel Drive Automatic

Hello. I have ran into a very strange problem that I have never seen before. I have a 96 deville I am working on that is a no spark situation with no codes present and no cranking rpm on scantool. If I unplug either crankshaft sensor the car will have a long crank but will start and run. Both crank sensors are 1140 ohms. Wiring to them from module is good and not shorted. Cam sensor is also in spects. I have looked in the crank sensor holes with a mirror and reluctor looks to be ok. The module has been changed with a known good one. All six wires from pcm to module also are good No shorts to ground or voltage. Pcm is also substitured with a known good one I have the most recent update flashed to it. I did ac voltage checks at the module plug with car idling on each open sensor. Crankshaft sensor a reads 5.1 volts when car is running and sensor b around 7 using a fluke 87 meter. I had two more cranks sensors on hand and tried them. Same results. Seems like a crank sensor sync problem of some kind. I have disconnect cam sensor with both cranksensors plugged in and no cranking rpm or spark. Has anyone ran into this? Seems very odd. Almost like the reluctor is a problem but I don't see how when it will start with either crank sensor just not both. Hope someone can give me a direction.

Thanks for the reply. Yes it does generate a code for missing crank sensor 1 or 2 can't remember the code at the moment and displays service ignition system in message center. If I clear the codes they do not reappear until I create them. The history is that everyone has had their hands in it. Thats why I hung another pcm on it and flashed it. Ground strap is present. Power and ground to the plug good. No voltage drops. I had a 94 northstar in yesterday that was running so I wanted to see if I disconnected the 6 wire connector to the module if it would still have spark in base mode and that car did. This one don't. Can the reluctor become magnized and create havok? I don't know. Im usually pretty good at this stuff but this one seems to lead back to the reluctor. I would love to solve this. I don't like losing. Not to mention what if another comes in with the same problem. Thanks again for the reply. They were all very good ideas.