Why does my check engine light only come on sometimes?
In a perfect world, you’ll find that a check engine light on and off intermittently is being caused by a loose gas cap. But many times, a check engine light will be caused by something other than a loose gas cap. It can, for example, be caused by a faulty oxygen sensor.
Does the engine light stays on before starting?
The light is connected to your car’s engine control unit (ECU), and is the first indicator of issues with the engine’s electronic ‘brain’. If the engine management light stays on when you turn on the ignition, or if it comes on while you’re driving, it means there might be a problem under the bonnet.
What does it mean when your check engine light comes on?
The check engine light provides an idea — sometimes precise, sometimes vague — of what’s wrong with a car. However, it does not replace a skilled mechanic or routine maintenance. In other words, don’t wait until the check engine light comes on to get your car maintenance done.
How long does it take for the Check Engine light to reset?
How long does it take for the check engine light to reset? If you are sure you have fixed the problem, it takes around 10-30 successful cycles before the check engine light disappears. One process is one cold-start until the engine is warm.
Is the service engine light a Dirty Little Secret?
Money Saving Products I Use Search The Service Engine Light: Your Mechanic’s Dirty Little Secret Last updated: January 16, 2021 G.E. Miller214 Comments Troubleshoot the Check Engine Light]
Is it safe to drive with a check engine light?
It depends on the severity of the issue. If it’s a minor issue, such as a loose gas cap, it should be safe to drive. If you notice a difference in the performance of the vehicle, it could be an indication of a more serious problem and it’s best to err on the side of caution. Reduce your speed and take the vehicle to a mechanic as soon as possible.