Mark LT 2WD V8-5.4L VIN 5 (2007)
Removal and Installation
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Disconnect the LH front and rear heated oxygen sensor (HO2S) electrical connectors.
3. Using the special tool, remove the 2 LH HO2S.
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To install, tighten to 46 Nm (34 ft. lbs.).
4. Remove the 4 exhaust manifold-to-catalytic converter nuts.
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To install, tighten to 40 Nm (30 ft. lbs.).
5. Remove the 2 bolts and disconnect the exhaust support bracket from the crossmember.
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To install, tighten to 25 Nm (18 ft. lbs.).
6. Remove the LH dual converter Y-pipe assembly aside.
7. NOTE: Install new exhaust manifold nuts.
