K 3500 Truck 4WD V8-6.5L DSL Turbo VIN S (1999)
11. Remove the upper intake manifold (L65 shown) gasket from the lower intake manifold gasket.
12. Remove the upper intake manifold (L56) gasket from the lower intake manifold gasket.
13. Remove the EGR valve sealing gasket (L56 only) from the lower intake manifold.
INSTALLATION PROCEDURE
Important: When servicing the upper intake manifold, always replace the upper intake gasket fold gasket for the L56, always replace the sealing
gasket between the upper and lower intake manifolds. Failure to replace this sealing gasket will cause a driveability problem. The L56 and L65
upper intake manifold gaskets are not interchangeable.
1. Apply a small amount of silicone sealer to the turbocharger inlet and the upper intake manifold.
2. Install the air hose and clamps on the turbocharger.
