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

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: Car stalled at 35 mph, check engine light on

Hello. I strongly suggest that you have your 2013 Mini Cooper Countryman evaluated, and the onboard computer scanned by a technician. The Check Engine Light will be paired by one or more stored fault codes. It is very likely another...

Q: Regarding valve cover gaskets

The valve cover gaskets will be the same for the GS or GSI. As long as the engine is a 1.6 liter engine you will not have any problem.

Q: brakes

Hello, thank you for writing in. Your brake pads likely need to be replaced. That grinding you are hearing is most likely metal-on-metal friction due to a lack of brake pad material. You can inspect the brake pads to see...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...