Why does my service engine soon light come on and off?

Why does my service engine soon light come on and off?

Reason #1 – A Loose or Faulty Gas Cap – Yes, surprisingly this can cause the Check Engine or Service Engine Soon light to come on. Start by taking the gas cap off and putting it back on. You’ll then need to drive the vehicle a few times to get the Onboard Diagnostic (OBD) system to reset and turn the light off.

How urgent is the service engine soon light?

If the light is on solid, you most likely have an emissions issue, not necessarily urgent, but one it would be wise not to avoid. If the light is blinking, you have an urgent issue and must go immediately to a garage.

Can spark plugs cause service engine soon light?

The answer is – yes! Worn spark plugs can cause your vehicle’s check engine light to illuminate, indicating an issue. It may even be a flashing check engine light. This is because bad spark plugs can cause your engine to misfire, which will trigger the check engine light to turn on.

Can service engine soon light mean oil change?

A Service Engine Soon light will appear when your cars onboard diagnostic system (the ECM) detects a potential problem. Its purpose is to alert you of any minor issues before they become major concerns. Common causes include needing an oil change, or a new cabin filter or air filter.

How much does it cost to service an engine?

The dealer engine service, which you need every 30,000 miles, is the one that’s going to hit you deeply. Expect to pay an absolute minimum of $250 and up to $1,000, depending on the work that needs to be done. The problem is that the work has to be done by the dealer, which immediately increases the cost.

When does the service engine soon light come on?

If your Check engine light is ON, the easiest way to diagnose this problem is to always check your trouble code memory with an OBD2 scanner. The check engine light will not light up if there is a scheduled service as the service engine soon light. It does only occur when there is a problem with your engine.

What does service engine soon light mean on Chevy S10?

Your Chevy S10’s service engine soon light is there to let you know that some sort of problem has been detected with the vehicle. Any vehicles made in 1996 or newer use OBDII codes, which can easily be retrieved from a good code scanner. A flashing service engine soon light is telling you that something needs immediate attention.

What does the service vehicle soon ( SVS ) warning light mean?

It’s different than the “Service Engine Soon” light or check engine light. The Service Vehicle Soon (SVS) warning light is part of a computerized monitoring system that’s run by the body control module (BCM). The BCM keeps an eye on several systems non-engine systems throughout the vehicle’s body and chassis.

What should I do if I see a service vehicle soon light?

Check the headlights with the high beams on and off. Check the turn signals and the flashers. Ask someone to check the brake lights while you step on the pedal, or back up near a wall where you can see them reflected in your mirror. Do the same with the backup lights.