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weird noise

  1. Weird engine noise during warm up

    Engine and Drivetrain
    I just bought a new 2011 patriot - latitude 2.4L 4x4 and when I start my engine it sounds weird for the first few minutes. It is louder like i can hear the pistons going up and down or something. Once it warms up a bit though it sounds fine like any other engine being on. Has anyone else...
  2. Air-conditioner making weird noise

    Jeep Patriot General Discussion
    Just noticed this today. When ever I started my car my air-conditioner started make a sort of high pitched noise and it sounded like a lil motor revving almost. I tried revving my engine to see if it increased the noise but it did nothing i turned it on and off and that didnt do anything then...