How to find o2 sensor on grand marquis

Asked by Apr 10, 2017 at 03:43 PM about the 2005 Mercury Grand Marquis GS

Question type: Maintenance & Repair

1 Answer

274,395

they are screwed into your exhaust. You need a special O2 sensor tool to remove. two upstream or before the catalytic convertor and two downstream or after the cat.

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