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Searching for your parts in the DENSO part catalog is easy. Simply select the type of part you are looking for along with the year/make/model of your U.S. or Canadian vehicle. For vehicles in Latin America, please go here.

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        Search for cross reference part numbers for other manufacturers of the parts you're looking for.

        Cross Reference information is provided as a guide only. Please refer to the "Applications" lookup tabs for more detail. Materials and designs will differ among brands, so plugs are not exactly alike. Always check with your OE service manual for proper installation and settings.

        Troubleshooting Charts – Abnormal Noise

        Symptom

        Condition

        Possible Cause

        Remedy

        Compressor noisy.
        Noise from inside compressor.
        • Bearing worn or damaged.
        • Defective cylinder and/or shaft.
        Disassemble and replace
        defective parts.
        Magnetic clutch noisy.
        Rattling noise when magnetic clutch is not engaged.
        Bearing worn or damaged.
        Replace bearing.
        Noise from piping.
        Piping not secured.
        Piping vibrating. Pulsating noise resonates into body.
        Secure piping.
        Noise from condenser.
        Condenser vibration prominent.
        Condenser mounting stay resonating with body.
        Secure by inserting rubber between stay and body.
        Noise produced by bracket.
        Rattles when touched, continuous rattling heard when operating.
        • Bracket cracked or broken.
        • Mounting bolts loose.
        • Replace.
        • Retighten bolts.
        Idler pulley noisy.
        • Clattering noise produced.
        • Rattles when touched.
        • Bearing broken.
        • Bracket cracked or loose.
        • Replace.
        • Replace or retighten.
        Noisy crankshaft pulley.
        Rattles.
        Improperly installed.
        Replace or retighten.
        Belt noisy
        • Belt deflection excessive
        • Belt side surface worn
        • Belt worn
        • Belt worn
        • Belt center misaligned
        • Worn belt causing belt slipping on pulleys and tensioner
        • Adjust tension
        • Align center
        • Replace belt
        Noisy belt tensioner
        Squealing belt and/or rumbling noise
        Tensioner bearing or tensioner spring weak
        Replace belt and tensioner