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  1. Can Cooling issues Cause a Lean Condition?

    Powertrain & Driveline
    2011 xterra with 140k on 'er. I noticed heating issues with the HVAC system (blowing cold when idle) and that the engine was running a warmer than usual, especially during a long drive (~4 hours each way) over the weekend. It wasn't close to overheating or anything, just a bit hotter than usual...
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