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  1. 09 cobalt help

    Problems and Service
    I have 09 cobalt ls, When clearing the code and here and there on a cold start will stall out or bog down shut off but sometimes will catch itself. Had a cracked flex pipe, fixed it then realized my downstream o2 sensor wires were ripped, I replaced the o2 sensor and it still does it, it also...
  2. 16.1 Mpg and Decreasing..need Advice!!

    All about MPG
    I have a 2009 Cobalt LT. I noticed a couple months ago how I had to put gas in my car more and more frequently. It was time for an oil change so I figured that was the cause. Now it went from around 28.9 mpg to 16.1 and its dropping by the week! Ive changed the air filter and keep my tires...
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