K Yukon/Denali 4WD V8-6.5L DSL Turbo VIN S (1999)
Exhaust Resonator: Service and Repair
REMOVAL PROCEDURE
1. Raise and suitably support the vehicle. Refer to General Information.
2. Remove the nuts from the Y-pipe flat flange.
3. Remove the nuts, studs, and flange seals from the Y-pipe and the exhaust manifold.
4. Remove the take down and the resonator assembly.
INSTALLATION PROCEDURE
NOTICE: Refer to Fastener Notice in Service Precautions.
1. Install the new flange seals, the new studs and the new nuts connecting the Y-pipe, catalytic converter assembly to the exhaust manifold.
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Tighten the studs to 22 Nm (16 ft. lbs.).
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Tighten the nuts to 64 Nm (47 ft. lbs.).
2. Position the Y-pipe and the resonator assembly to the flat flange.
NOTICE: Refer to Fastener Notice in Service Precautions.
3. Install the nuts to the flat flange studs.
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Tighten the nuts to 64 Nm (47 ft. lbs.).
4. Check for clearance and alignment.
5. Lower the vehicle.
