Grand Marquis V8-4.6L VIN V Flex Fuel (2006)
16. Install the LH exhaust flange nuts.
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Tighten to 40 Nm (30 ft. lbs.).
17. Tighten the LH exhaust bolts.
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Tighten to 40 Nm (30 ft. lbs.).
18. Connect the LH HO2S sensor connector.
19. Connect the LH catalyst monitor connector.