Q: Replaced crankshaft sensor and now car won't start. Even tried putting old one back and still won't start. No problem starting bef

asked by on

Was told my crankshaft sensor needed replacing. Car was running bad. Shop ran codes and came up with crankshaft sensor. I replaced it with a new one now car won't start. Even if I put old one back, car still won't start. No problem starting, before replacing sensor.

My car has 20000 miles.
My car has an automatic transmission.

I would recommend retracing your steps. If you disconnected the battery before replacing the sensor, this could be one cause of the vehicle not to start. A new crankshaft sensor should not have prevented the vehicle from starting. The cause of the no start issue is either related to a fuel or ignition issue that the vehicle has or something that happened during the replacement of the crank sensor. I would retrace your steps to make sure that everything is plugged in properly and if this does not work have the ignition and fuel systems tested. Consider YourMechanic as these services can be completed at your home or office.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Replaced crankshaft sensor and now car won't start. Even tried putting old one back and still won't start. No problem starting bef

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: Replaced front calipers and pads, rotor on right front, but passenger side rotor is still burning and smoking?

You will need to check the caliper slides are not binding and are lubed properly. If okay then with wheel off see if rotor is binding and then open the bleeder on the caliper to see if it releases the...

Q: Replaced battery 4 days ago. Car crabking but not starting because of anti theft. Had a locksmith reset it. Wont work again, why?

Hi Kyle. Thanks for the question. It's likely that your issue is a security code trapped in the ECU. The unfortunate thing about having a locksmith attempt key or security repairs is that 90% of the time, the ECU thinks...

Q: what should you change every year on your car

Besides an oil change you should have the air filter checked and replaced if needed. Also have tires rotated. Other than this you should follow the vehicles recomendations for higher mileages and have a complete check up on the suspension...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.