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

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: The transmission seems to go into neutral when I stop ,then I turn off the car then restart and I can go again until I stop

Hi there. If it starts working fine once you restart the car, then chances are it is not the transmission failing. Most of the time, this is caused by a valve sticking in the valve body. They tend to get...

Q: How do I set the automatic climate control

The automatic climate control automatically controls the system so that the desired temperature can be maintained. Setting the automatic climate control is very easy: 1. Press the AUTO button. 2. Use the temperature control dial to set the desired temperature....

Q: What are some reasons why the remote vehicle start won’t work?

The remote vehicle start feature allows you to turn on your vehicle using only your remote keyless entry (RKE) transmitter. However, the remote vehicle start will not work if any of these conditions are met: 1. The RKE transmitter is...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.