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Rattle only when ac on and car in gear

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  • #894466

    Hello,

    My 2007 Toyota Camry with a 4 cly engine has a rattle (more like a knocking sound) only when the AC is on and the car is in gear. AC off, no rattle. AC on but car in park, no rattle. Everything is working and no check engine light. If anyone could offer suggestions, I’d appreciate it.

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  • #894467
    Nightflyr *Richard Kirshy
    Participant

      Low RPM and under load …
      Might look at the AC clutch, belt tensioner ( if so equipped )
      Might also check the Freon level in your system.

      #894468

      Thank you very much. I will check those items.

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