Question about 2000 GMC Sonoma Extended Cab

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My servie engine soon light is on and sometimes blinks. I took it to AutoZone to check for a code and their machine code reader thing would not come on. What does that mean? I also took it to a sevice place and it wouldn't come on there either.... Whats the problem?

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Even a loose fuel cap or distributor cap can bring up the light . Without codes it will be like shooting in the dark to identify why it is light up. Any fault , anywhere in the car can cause the engine light to come on.
Unless you face any problem in your car dont break your mind over that.

Posted on May 29, 2010

  • minor_inc May 29, 2010

    Would that make their machine not come on?

    INDIRA KUMAR May 29, 2010

    Yes it is possible



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fluid levels can be fine however does not mean pressures like Oil pressure is okay.. is it the check engine light or service engine soon light you did not specify... if it is the check engine light you will need to have a diagnostic code reader to search and read any stored emmission trouble codes... you can have a tech scan it for you or you can buy a realtively inexpensive code reader at any discount autoparts store like Kragens or Autozone... please rate my help, thanks

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