Skip the auto shop - Our mechanics make house calls

Q: Check engine light

asked by on

my check engine lights keeps coming on and off What do i need to do ?

My car has 88021 miles.
My car has an automatic transmission.

Hi There, Generally, the check engine light comes on when something fairly serious is going on with the vehicle. This can happen for many different reasons such as a faulty mass air flow sensor, a faulty O2 sensor, a bad catalytic converter, bad spark plugs or spark plug wires and many other reasons. Due to the wide range of possibilities for the check engine light to come on, the best and most efficient way to narrow down the scope of what may be causing this is to have the vehicle hooked up to a scanning tool to download any potential fault codes that may have registered in the computer. This will allow a mechanic to determine more specifically what to look for in diagnosing your vehicle. I would recommend having an expert from YourMechanic come to your location to take a look at your vehicle to determine what may be causing your check engine light to come on.

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
  1. Home
  2. Questions
  3. Check engine light

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: Won't shift out of park 2000 Chevrolet Silverado 2500

Some vehicles have hidden shift lock solenoids. These are particularly on the vehicles that have a column shifter. It is possible that the steering column trim will have to be removed in order to access it. I would recommend having...

Q: What should I know about the seat-mounted and roof-mounted air bags?

Your Altima is equipped with a number of different air bags – it goes well beyond the front driver and front passenger system. You also have seat-mounted air bags and roof-mounted air bags. Here’s what you should know about each:...

Q: Clicking sound when trying to start the car

It sounds like you will need to have the starter checked. You'll need to check if the click is coming from the starter solenoid on the starter or the relay in the power relay box in the engine compartment. Also,...

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...
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...