Question 1

What causes a check engine light to come on?

Accepted Answer

A common reason for a check engine light is a faulty oxygen sensor. Other frequent triggers include a loose gas cap, bad spark plugs, a malfunctioning catalytic converter, issues with the mass airflow sensor, or problems with the car's emissions or ignition system.

Question 2

Is it okay to drive with the check engine light on?

Accepted Answer

If the check engine light is steady, driving for a short period may be safe, but you should get it checked as soon as possible. A flashing check engine light indicates a more serious problem, and driving could cause further damage to the engine.

Question 3

What does a flashing check engine light mean?

Accepted Answer

A flashing check engine light signals a serious issue, often related to engine misfires, that could cause damage if not addressed immediately. You should stop driving and get your vehicle inspected as soon as possible. If you need assistance, contact Pep Boys local towing service to safely transport your car to a service center.

Question 4

What does a solid check engine light mean?

Accepted Answer

A solid check engine light means there's a problem with your vehicle, but it’s not urgent. However, ignoring it can lead to bigger, more expensive issues over time. Have your car diagnosed promptly to identify the cause.

Question 5

Can low oil cause a check engine light?

Accepted Answer

Low oil levels can cause a check engine light to come on, though it's more common for the oil pressure warning light to appear. If both lights are on, have the vehicle inspected immediately to prevent engine damage. Need an oil change? Get your car serviced at your local Pep Boys.

Question 6

What are the most common causes of a check engine light?

Accepted Answer

The most frequent causes of a check engine light include a faulty oxygen sensor (which can cut fuel efficiency by 40%), a loose gas cap, worn-out spark plugs causing engine misfires, a failing battery, or a malfunctioning catalytic converter. Pep Boys offers professional diagnostics and replacement services for each of these components to help restore your vehicle’s performance.

Check Engine Light Service