Q: It has a service engine soon light and i dont know what it means?

asked by on

My pontiac the cadilac converter was clogged up i took it to the shop and they fixed it now it has a service engine soon light what could it be?

My car has 270000 miles.
My car has an automatic transmission.

The service engine soon light inspection would be needed by a mechanic like one from YourMechanic to find out why the light came on. The light is only and indicator that the computer in the car has detected a problem and turns on the light to warn you there is a problem. The on board computer will store a code in memory that the mechanic can retrieve and diagnose the cause of the code. Since you had a clogged exhaust catalyst and it was fixed then a sensor like one of the exhaust O2 sensors may have been damaged from the bad catalyst and need replaced. I would recommend having the mechanic come to you and scan the computer and do the pinpoint test to find the cause of the light coming on then a quote can be given for the needed repairs.

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. It has a service engine soon light and i dont know what it means?

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: The master warning light as well as the low tire pressure light is on what does this mean?

The tire pressure light is an indication that there is a tire low on air or there is a failed sensor in one of the tires and should check to see if any tire is low on air first and...

Q: 2003 Toyota Camry radiator fans are not coming on when the car is started but one fan runs when the temp sensor is unplugged.

The radiator fans are controlled by the Electronic Control Unit via the fan relay. The fans are supposed to come on when the engine reaches a certain temperature, or when the AC pressure comes up. If the car is overheating...

Q: Do I really have an engine problem?

If the check engine light (CEL) has illuminated that does signify that there is an issue with the engine and/or a part of the "engine management system". You should get it checked out especially as it is possible that the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...