Question about 1991 Toyota MR2

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Knocking noise from AC compressor

At about 3000 RPM I hear a knocking noise from my 1991 MR2's AC compressor. This happens if the engine RPM is increasing or decreasing.

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I would replace the compressor, if it seizes up, the belt will keep turning over the pully and burn then snap

Posted on Jan 31, 2009

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