The production third generation Quest was unveiled for the 2004 model year at the 2003 North American International Auto Show.

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How do I replace the catalytic converter?

Do I need to remove the alternator in order to remove the catalytic converter?

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What makes you think you need a new catalytic converter?


I was told by AAA when my van broke down on me. They did a diagnostic, two of the three converters went bad. I bought the replacements, just can't seem to figure out how to get to the bolts. I can't find any info on 2004 Nissan Quest. No internet, books, nothing.


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1 Answer

Three options I would recommend.

1) Go to for an online step-by-step repair guide.

2) Go to Auto parts store, ask for Chilton or Haynes repair guide for your vehicle.

3) Worst case scenario. Buy the new part, look and see where bolts are located on the new one and take the old one off.

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Calvin Seabury will be eternally grateful.
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