go to auto zone or a shop of the sort. they have and sell readers there that will tell you the code and the problem.
After repairing the cause of the code, you clear the code with a scan tool.
What does the code po178 mean on a z71 tahoe 03
yes it can. if the check engine light shuts off by itself then chances are either the trouble code is a soft code. A hard code will keep the check engine light on until the problem is fixed and the check engine light is reset.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
When the check engine light comes on it should post a code. Use a code reader to see what the code is and ask again.
and what code does the check engine light say ? go by autozone they will check it for free and get the code.
Fix the cause of the code that turned the light on.
No, the check engine light comes on when the computer detects a malfunction and sets a code.No, the check engine light comes on when the computer detects a malfunction and sets a code.
Go to AutoZone and ask one of the fellas to come out and "check your check engine light code". They will be able to tell you what the problem code is, as well as re-set your check engine light.
Usual first sign is a check engine light with a code P0420.Usual first sign is a check engine light with a code P0420.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Use an automotive computer code-scanner to read the stored code. Then you'll know why the "check engine" light is on.