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Crankshaft position sensor broke

Tiny
CARS522
  • MEMBER
  • 2000 MAZDA PROTEGE
  • 1.6L
  • 4WD
  • AUTOMATIC
  • 116 MILES
My car stopped running because of the crankshaft position sensor, upon inspection I found that the bolting part of the sensor was broken off and no longer attached to the car. The issue I’m having is I cannot located where I will be bolting the new sensor into. I’m not sure if the old bolt is still lodged into the car.
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Wednesday, July 31st, 2019 AT 9:10 AM

7 Replies

Tiny
KASEKENNY
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Hi Cars522,

I attached the process on how to replace it. It shows the placement for the bolt. It is just next to the crankshaft pulley.

Let me know if you have any other questions. Thanks
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Wednesday, July 31st, 2019 AT 2:25 PM
Tiny
CARS522
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The entire sensor has to be attached to the car for the car to start again correct? By entire I mean the bolting part and the plug in part. Just double checking because I attached the plug in part and the car didn’t start.
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Wednesday, July 31st, 2019 AT 3:15 PM
Tiny
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Yes. You need to have it bolted in because if the air gap is too large it won’t pick up the tone wheel gaps which will cause a no start.
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Wednesday, July 31st, 2019 AT 3:41 PM
Tiny
CARS522
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Is this the correct place? Is it the smaller bolt where it should?
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Wednesday, July 31st, 2019 AT 5:00 PM
Tiny
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Yes. The one on the right looking at the picture. That looks correct. I would pull this out and make sure it has the ear of the old crank sensor that should still be there. That will confirm it. It looks like it is there so it appears correct.
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Wednesday, July 31st, 2019 AT 5:11 PM
Tiny
CARS522
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So I got it in there but still no start. Any other suggestions? The car is attempting to turn over but won’t.
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Wednesday, July 31st, 2019 AT 5:51 PM
Tiny
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Okay, couple things. First we need to scan it to see if there are codes. Second can you send me a recording of what it sounds like when trying to start?

If you don't have a scan tool to get codes, most parts stores can pull it but clearly the vehicle is not running so this may be a little harder.

Here is a guide that runs through the basic info that we are going to be going through:

https://www.2carpros.com/articles/engine-cranks-excessively-before-starting
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Thursday, August 1st, 2019 AT 7:13 PM

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