Skip the auto shop - Our mechanics make house calls

Q: My check engine light came on after getting a jump start from AAA and when i got home i turned the car off and the light stays on

asked by on

I got a jump start from AAA and now my check engine light is on and when i got home i turned the car off and the car did a vrum vrum vrum noise with heavy grey smoke coming out the exhaust and turned off and the check engine sign was still on the dash even in the off position. Which was wierd thats not supposed to happen so i tried turning the car back on and it wouldn't turn on so i got another jump from AAA and they tested my battery and said it was shot so i got a brand new one and still the same problem is happening check engine light still on even after i turn the vehicle off n it does the vrum vrum vrum like its still running and blow smoke out the exhaust i hurried n turned it back on it came on and i took it to autozone for a free diagnostic code read and it came up with the ignition switch code so i got that replaced and still i have the same problem i took it back for another code reading and now its saying ignition switch and P2070 code. Can you please help me out. I'll pay

My car has 124000 miles.
My car has an automatic transmission.

A: Hello. From what you describe it would appe...

Hello. From what you describe it would appear that your vehicle is experiencing more than one issue. P2070 is the code indicating the intake manifold tuning valve is stuck open. This may be linked to your performance issue. Dark smoke from the tailipe can be caused by a few things. The most common cause is due to an excessively rich fuel condition. If the vehicle is running rich, any fuel that is unburned in the combustion chamber can ignite while it is traveling through the exhaust system, producing black smoke. As your vehicle has more than one issue, I would recommend having the vehicle looked at by a professional technician, as the drive-ability of the vehicle is likely being heavily affected.

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: Car electronics turn on but engine doesn't crank

This is the most common symptom of a faulty starter. If all of your electronics are working properly, this means that your battery is fully charged. I would recommend having your battery voltage checked with a digital multimeter to verify...

Q: Car not starting.

There are a few different scenarios that could contribute to your car not starting. The first piece of information that I would need to know is the condition of the battery. If the battery is unable to hold a charge...

Q: My 2011 Acadia is leaking engine oil. Above the drain plug is wet- it's dripping off the drain plug

Oil leaking above. the oil pan can be coming from a number of places depending on how far above the pan, the oil is leaking from. The oil pan gasket, timing cover gasket/seal, or even the oil pressure switch are...

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...
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...
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.