Q: Check engine light

asked by on June 12, 2017

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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

When do I replace my struts/shocks? They've never been replaced.

The suspension should be inspected at every regular service. You should only replace the struts and shocks if it's necessary. There is no set scheduled interval to replace them. They usually last 6 to 10 years in your case they...

I had both axles replaced and car still sqeaks alot what could the problem

Hello, thank you for writing in. The vehicle may be squeaking for a number of reasons. The best way to tell if it is the axles causing the sounds is to isolate the noise with a series of tests. You...

Can I swap a 97 4.3 with a 94 4.3?

Hi there. You can change the engine block, but the cylinder heads will not match up. The cylinder heads for a 94 was made for an intake with a throttle body and injection in the throttle body where the 97...

Related articles

A Buyer’s Guide to the 2011 Mercedes-Benz ML450 Hybrid
The The 2011 Mercedes-Benz ML450 Hybrid is Mercedes' first hybrid SUV. It can perform light off-roading tasks while still being able to tow a good amount of weight. It has excellent fuel economy and drives just like the Mercedes-Benz M-Class...
A Buyer’s Guide to the 2012 Chevrolet Tahoe Hybrid
Chevrolet Chevrolet has always had a good name when it comes to the vehicles they make, and that is doubly true for their SUVs. The 2012 Chevrolet Tahoe Hybrid has all of the great features that you would want from...
A Buyer’s Guide to the 2012 Chevrolet Silverado Hybrid
If If you’re looking for a half-ton pickup truck that also gets great gas mileage, look no further than the 2012 Chevrolet Silverado Hybrid. While it has the towing and carrying capacity you’d look for in any regular truck, it...