Skip the auto shop - Our mechanics make house calls

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?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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: Check engine light after throttle body but had no head gasket 1994 Dodge Ram

Hello. I would need to scan the computer for codes to see why the light is coming on. After a head gasket replacement it may just be that something was left loose or not properly connected. If you want to...

Q: Third gear gone.

My guess is that the third gear synchronizer ring teeth are worn or broken. Doing some research indicates this is a fairly common problem with PT Cruisers. The gear teeth could also be broken, or shift fork could be damaged....

Q: Car help

A few different components can cause the vehicle to have a heater and blower motor to not work right. This would most likely lead to a failing AC control unit, a mode door, blend door, blower motor, or low refrigerant....

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...