Old Jan 3, 2023 | 07:00 PM
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Ronman
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Default Re: What causes a Crankshaft Position Sensor to fail?

Originally Posted by dedwards0323
Would you also recommend doing that PM to the Camshaft Sensor located on top of the motor? My 2007 Coupe actually still has both of these original OEM sensors still in service. I'm convinced the primary failure mode is heat-related, but I also believe this failure mode is influenced by the time dependent exposure the sensor sees the heat. In my case, where I only drive the car sparingly and not as a daily driver, the exposure time these sensors see the heat from the engine is reduced. Anyway, just talking out loud so to speak. I still carry spares in the trunk just in case.
My camshaft sensor actually failed during the factory warranty, the car would have trouble cranking/starting but wouldn't leave you stranded (they had to order it). I have changed it once since since it is in front of the engine I don't think the heat really gets to it.

Even the Bosch CPS description on Rockauto mentions temperature more than once, https://www.rockauto.com/en/moreinfo...k=500351&jsn=3
 
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