Skip the auto shop - Our mechanics make house calls

Q: When you start the vehicle it will turn but shuts off, why?

asked by on

It will turn but will not stay on, it shuts right off. We first had to get the battery changed. We ended up having to get a new alternator. We took it to advance auto to have it tested and the code read throttle body, and we got a new one and we still have the problem. We even tried resetting the computer and that didn't work. So what is causing it not to stay on?

My car has 178102 miles.
My car has an automatic transmission.

A: It could be a number of things, but I feel ...

It could be a number of things, but I feel the most likely cause is your key and immobilizer. If you have a spare key, try starting with the spare and see if that works. If it stays running, the original key is the problem.

You may need to re-program the key to your immobilizer unit. Refer to the factory service manual for details on how to re-program your key to the vehicle. Also, use a scanner to identify any diagnostic trouble codes that may be pointing towards the problem. Usually a faulty key chip will cause a code to show. If you want to have this checked, a certified technician from YourMechanic has the tools and knowledge to fully test and diagnose the vehicle's starting trouble.

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・Save up to 30%

Get a quote

What others are asking

Q: I'm having electrical problems, 1995 Buick Riviera

With so many electrical problems, I would start by checking the battery first. A poor or corroded connection here can cause a world of problems. Have the same technician hook jumper cables to the car and pull fault codes (if...

Q: compatible transmission from another vehicle to fit mine

Hello. It would appear that Jeep Wranglers are only equipped with 4 or 6 cylinder engines. Your Durango comes equipped with a much larger (and more powerful) v8, which means those engines will likely not work correctly in that vehicle....

Q: OBD-II codes P2195 and P0171 appear

P2195 and P0171 occur when the engine is running too rich (too much fuel relative to air charge) and the engine feedback system is unable to compensate. The "how can you fix this" depends on which component(s) in the system...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...