Why is does my check engine light come on and then go off?

Why is does my check engine light come on and then go off?



Your check engine light continuously runs tests and monitors the systems in your vehicle. This is to make sure they are operating properly. If one of those components stops working as it is designed to then it will cause an error. This causes your check engine light will come on. If your check engine light, then goes off it could be that it re-ran the test and the component passed this time. Many times, we see this when a component is starting to fail. We can scan and diagnose your vehicle even when the light is off. This is due to the information being stored in your vehicle’s computer even when the light is off. Give us a call and let us take care of you.


Happy Adventures,


Heather

Our specials can be found here - Specials - J & H Automotive, Inc

Ready to make an appointment … Appointments - J & H Automotive, Inc

Want to know more … About Us - J & H Automotive, Inc

Would you like to join our merry band of misfits? Careers - J & H Automotive, Inc

By jhautoinc • November 3, 2026
Winter is coming are you ready?
By jhautoinc • October 30, 2026
Cold weather can make existing diesel problems much easier to notice.
By jhautoinc • October 27, 2026
You press the brake pedal and suddenly your vehicle wants to move left or right.
By jhautoinc • October 23, 2026
When a medium-duty truck is part of your business, it is more than a vehicle.
By jhautoinc • October 20, 2026
Diesel engines are built to work.
By jhautoinc • October 16, 2026
Hybrids Still Need Oil Changes
By jhautoinc • October 13, 2026
How often should our vehicles be serviced?
By jhautoinc • October 9, 2026
Feeling sluggish?
By jhautoinc • October 6, 2026
You recently had your brakes replaced, so hearing them squeal can be frustrating.
By jhautoinc • October 2, 2026
Cooler weather is coming.