Mariner 2WD V6-3.0L VIN 1 (2006)
2. NOTE: If installing a new converter, remove the heated oxygen sensor (HO2S) and the catalyst monitor sensor for installation in the new
converter.
Using the special tool, disconnect the LH HO2S and the LH catalyst monitor sensor electrical connectors.
3. CAUTION: Do not allow the exhaust Y-pipe to hang from the flexible end. Support the exhaust Y-pipe.
Remove the 4 exhaust Y-pipe nuts and position the exhaust Y-pipe aside.
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Discard the gasket.
4. Rotate the accessory drive belt tensioner clockwise, and position the drive belt aside.
5. Remove the A/C compressor nut and the 2 A/C compressor bolts, and position the A/C compressor aside.
6. Remove and discard the 6 LH exhaust manifold nuts.
7. Remove the LH catalytic converter from the vehicle.
8. Remove and discard the exhaust manifold gasket.
Installation
1. CAUTION: If the warpage is greater than 0.76 mm (0.03 inch) install a new catalytic converter.
Inspect the catalytic converter for warpage across the manifold flange area.
2. Position a new LH exhaust manifold gasket.
3. CAUTION: Failure to tighten the catalytic converter nuts to specification before installing the converter bracket bolts will cause the converter to
develop an exhaust leak.
CAUTION: Failure to tighten the catalytic converter nuts to specification a second time will cause the converter to develop an exhaust leak.
NOTE: Make sure to tighten the nuts in the sequence in 2 stages.
Position the LH catalytic converter and tighten the 6 exhaust manifold nuts in the sequence shown.
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Stage 1: Tighten to 25 Nm (18 ft. lbs.).
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Stage 2: Tighten to 25 Nm (18 ft. lbs.).
4. Position the A/C compressor and install the 2 A/C compressor bolts and the A/C compressor nut.
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Tighten to 25 Nm (18 ft. lbs.).
5. Rotate the accessory drive belt tensioner clockwise and install the belt.
6. Position the exhaust Y-pipe gasket.
7. Position the exhaust Y-pipe and install the 4 exhaust Y-pipe nuts.
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Tighten the nuts to 47 Nm (35 ft. lbs.).
