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air conditioning noise

  1. Problems and Troubleshooting
    Hi all, 2000 Insight M/T, about 150k miles. Whenever I turn on the A/C, most noticeably when the engine is cold, the engine makes a loud what sounds like a knocking sound or some type of grumbling. It was hard to describe so I took a video of it, you can clearly hear it. The engine shakes a...
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