Skip the auto shop - Our mechanics make house calls

Q: Crankshaft position sensor keeps burning out

asked by on

I'm currently on my 4th crank position sensor within 4-5 months on this vehicle. The latest one is starting to give me the same symptom as the last few: engine sputtering slightly while accelerating past 3000 RPM. The last couple, after failing completely, gave me the symptoms of the overdrive coming on and off, RPM surging, stuttering and jerky driving.The last time I put a diagnostic machine on it it said the problem was the crank sensor (I don't remember the specific code unfortunately), replaced it, but the trouble code wouldn't clear. Maybe it's the wire that leads to the sensor that is connected to the main harness? Whenever I've replaced the sensor, it doesn't appear burned. I have not used dielectric grease when replacing. Help?

My car has 117000 miles.
My car has an automatic transmission.

It’s been my experience that typically when I have run across a situation where a sensor keeps failing in the same way, it comes down to one of two situations. Either there is a problem with the wiring/connector for the sensor, or the sensors that I was using are low quality and failing prematurely. There could be a problem with the electronic control module, or the pickup on the crankshaft, but these two are the most common that I have run across. If you feel you need a hand in diagnosing and/or repairing the problem, contact a certified mechanic, like the mobile mechanics available at

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: A/C Blowing HOT air. 2001 Hyundai Santa Fe

Hello. If there is no pressure in the system, then that means that there is a leak in the system. If there was no refrigerant, then there is going to be air in the system. If that is the case,...

Q: Serpentine belt popped off engine while running

Hello there, many faults will cause the drive belt on your 2007 Dodge Durango to fall off. In many cases the belt comes off from either a seized pulley, or a pulley that is walking. If your harmonic balancer pulley...

Q: Camshank sensor

There has never been a fuse or circuit breaker in the crankshaft sensor on any vehicle that I have ever worked on. If you are having a problem with the crankshaft sensor or engine problems that you need help on...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.