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sd 8/4/2012
2004 Chevrolet Express 2500 LS 8Cyl6.0L - Engine
check engine light on, starts and dies when cold and ac is on.runs good when warmed up and excellerateing. ac not very c
1 Answer
  • CVO
    CVO 8/4/2012
    First, scan the vehicle for fault codes.

    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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