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

2 Answers

298,925

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.

Getting engine light and had it checked. Telling me o2 sensor on second band second sensor. 1999mercury marquis

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