Q: Q: I have the service engine light on

asked by on

Service light is on, I've check the gas cap only, the car is running good I don't feel that anything is wrong with it

My car has 38900 miles.
My car has an automatic transmission.

The computer should be scanned to see why the Check Engine Light is on by a mechanic. The Check Engine Light is an indication that the computer has a fault in the systems that it monitors and has set a code to help diagnose the problem. The vehicle’s running condition may not be changed even though the system has a problem. A thorough pinpoint test for the codes received will narrow the problem down so it can be repaired. The gas cap could cause the light to be on and set a code. A test is needed to see if it is the cause or it is another problem.

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
  1. Home
  2. Questions
  3. Q: I have the service engine light on

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

Q: Heat blowing on driver side but not passenger

The most common cause is the temperature blend door actuator for the passenger side is bad and needs replaced.

Q: Why does my car still hesitate to start???

There are many causes of hard starting but illustrative ones are a faulty engine coolant temperature switch (sensor), malfunctioning idle air control (IAC) valve, vacuum and EGR leaks, inadequate fuel delivery or pressure (clogged fuel filter, dirty fuel injectors), and...

Q: Wrench light has come on numerous times 2008 Ford Explorer

Hi there - the "wrench light, which allegedly indicates a variety of problems with the drivetrain, is a huge source of frustration on the part of Ford owners such as yourself. It is not well understood, or trained for, by...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...