Engine shuts off while driving or idling

Hi,

Does this only happen when the engine is warmed up to operating temperature? I ask because it may be a bad crankshaft position sensor. I say that because you indicated the tachometer jumps. If the sensor is going bad, it will affect the tachometer.

Take a look through this link and let me know if it seems to mirror what you experience with the stalling.

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

Let me know
Joe

Hello thanks for using 2CarPros, has the check engine light come on at all? There will probably be a diagnostic code stored in the engine computer. Due to the erratic rpm signal, this points to a possible problem with the crank shaft or cam shaft position sensors. Or a wiring issue where the wiring harness may be rubbing through touching metal, shorting out the sensor. The trick is finding out which signal is having an issue. when these sensors get hot they can fail as well.
https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

This article will help you understand it's function. If the check engine light has ever been on, you can have your local parts store scan the computer for diagnostic trouble codes. Hope this helps some.

Okay, the computer will need to be scanned for codes, this will give you direction in finding the problem. Your local parts store will scan it for free. Hope this helps some. Sorry for your frustration.