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code reader

  1. OEM Issues
    Everyone i have a 2004 trailblazer and have been getting the thermo senser code P0128... i replaced the temp gauge but now its not reading at all. my truck isnt running hot or anything.. but every now and then the thermostat gauge hand will jump from lowest to highest and then back down to...
  2. General
    Hello everyone, I have decided that I am going to purchase a scanning/diagnostic tool and need some guidance. I would like to be able to read as deep as possible into codes and also be able to do diagnostics such as fuel economy, etc. while running my TB. After discussing with a mechanic...
  3. General
    Hi Everyone, I have been digging thru the forum, and i cant find anything about my problem. Maybe it is because I don't know what to search under. I have an '04 Trailblazer with a SES light on. I took it to Auto Zone to have the code read, and they guy told me he couldnt read it. The machine...
  4. OEM Issues
    I have an 03 LT 4WD with 104k. Fixed a few things over time and would like to save trips to Autozone and buy a code reader. There are tons of them on ebay. I'm not sure what would be a good one or a bad one. Also not sure if i want one that can modify my TB. Any suggestions?
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