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abel ochoa
abel ochoa 8/6/2012
2002 GMC Yukon Denali Base 8 Cyl 6.0L - Engine
gettin to a stop light my truck some times turn off,and turning the wheels to right and lefth about to turn off
1 Answer
  • CVO
    CVO 8/6/2012
    The check engine light doesn't have to be ON to store a fault code.

    Check the vehicle for fault codes to see if there are any sensors were involved to the malfunction of the engine.

    1.Local auto parts stores such as Autozone ( not in California) or Advance Auto parts will scan and retrieve any diagnostic trouble codes ( dtc ) stored in the powertrain control module for free of charge..

    2. has the code reader for less than $20.00 dollars.

    3.Re-post the dtc's in here " answer question " for further assistance.

    Note: we need the dtc's to identify the sensor, there are a dozen different sensors to operate the car.

    Visit this site and see all the different sensors.

    Navigate to this site and see the code reader

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