Skip the auto shop - Our mechanics make house calls

Q: Check engine light is illuminated and the car is not starting

asked by on

Car won't stay on will turn over but won't hold start battery is good starter is good fuel pump is good gives crank code and check engine light is on

My car has 99999 miles.
My car has an automatic transmission.

Hey there, thanks for writing in. In the future, please include the code number. There are several codes that this system can set.

If you have a crank sensor code, this will cause your car to not start. The most likely cause is a bad crank sensor or a wiring problem. It is possible that the toothed wheel that is attached to the crank has come a part for some reason, but this is exceedingly rare. If you replace the crank sensor, be sure to look inside the crank sensor mounting hole with it out to confirm the toothed gear is still intact. You may want to turn the motor by hand to get a good look at it from all positions.

The Check Engine Light is on to let you know there is a code in the PCM (powertrain control module). Scan data should be looked at to confirm the accuracy of the code. With a professional level scanner, we can see if there is a crank sensor signal. Testing from this point requires some expensive tools and experience.

If you require further assistance with this, I recommend having a certified technician, like one from YourMechanic, diagnose you car’s starting issue firsthand for an accurate repair.

Good luck!

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Bad Ignition/electrical issue - takes several cranks before it starts!

Hello there, you have a few different faults going on with your 2007 Chevrolet Impala. A vehicle should not have to crank long before it starts unless there is a fault. Given the codes you have listed there are a...

Q: Traction control

A lean fuel condition may be caused by a number of things. An intake air leak, a dirty or faulty mass air flow sensor, a faulty fuel injector, a faulty oxygen sensor, a faulty fuel pump are just a few...

Q: 2013 Chevrolet Equinox will not turn over.

Hello there, it's like the power steering and car not starting issues are related on your 2013 Chevrolet Equinox. Your vehicle is equipped with electronic assist power steering, if the battery voltage is low it can cause errors in the...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...