Skip the auto shop - Our mechanics make house calls

Q: Turns off while in drive

asked by on

My Tahoe, while in drive will turn off without warning. There are no error codes or check engine lights. The car is fully gassed up and battery is good. It has happened three times so far. Once while I was waiting at a light, once while I was driving around 20 mph on the street, and another while I was in park in my driveway warming up the car. I googled the symptoms a week ago and replaced the crankshaft position sensor but that hasn't worked. Hoping I can find an answer here.

My car has 160000 miles.
My car has an automatic transmission.

Hi there. The various conditions for your vehicle turning off and no check engine light is going to make diagnoses difficult. It could be, a fuel delivery issue such as, a faulty fuel pump or a faulty fuel pump relay. It could be, a faulty MAF (mass airflow) sensor or a faulty IAC (idle air control) valve. Proper diagnoses needs to be performed to avoid unnecessary repairs. I recommend having your vehicle’s engine intermittently turns off be diagnosed and repaired by a certified technician, such as one from YourMechanic.

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: Double back doors not opening

This can happen where the rear doors appear to be locked and will not open. The inner carpeted panel will need to be removed on the passenger barn door and the actuator rod which connects to the outer handle will...

Q: Engine making pinging sound

Hi there. This pinging sound that you are hearing is actually coming from your transmission upon acceleration. Acuras are known for encountering this problem around 100,000 miles. If your transmission has not yet been serviced I'd advise you to do...

Q: Rear differential yoke leaking

If the seal rides on the shaft of the yoke, the yoke would be removed anyway to replace the seal, so there would be no extra labor to install a new yoke were the yoke worn. If the play is...

Related articles

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...
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...
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.