Cat Converter Heat Shield Rattle

I get in and tap the throttle three times then once more.

Cat converter heat shield rattle. I ve used this technique on more than one vehicle with great success. It is reminiscent of a heat shield rattle only much louder. The regular changing o. Catalytic converter heat shield rattle is a pretty common occurrence that is caused by the heat shield becoming loose.

I raised the driver s side slightly and with a broom handle traced the sound to the catalytic converter. There are three parts to a catalytic converter. Dealership told me the rattle was from a loose heat shield on the catalytic converter. Converter heat shield rattle is indeed annoying but is remedied with a few basic materials.

2009 honda crv was rattling and noisy while idling. P0430 cat efficiency. Often one or more of the bolts that hold it in place has broken loosened or become overly corroded. This is a thin stainless stamped piece that is bolted on top of the catalytic converter to insulate the frame from the heat eminating from the exhaust stream.

Step 1 spray the converter s heat shield bolts with penetrating oil about an hour before you go to work on them.