ENGINE MECHANICAL - 4.6L V8 -2000 Cadillac Seville SLS
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Disconnect negative battery cable. Relieve fuel system pressure. See FUEL
RELEASE. Remove 2 nuts from intake manifold sight shield. Remove sight shield from engine. Disconnect coil module connectors. Disconnect PCV valve and fresh air tube from camshaft
cover. Disconnect fuel regulator vacuum tube. Disconnect fuel inlet and return quick-connect fittings at fuel rail. Disconnect fuel rail bracket retaining nut at rear lift bracket.
Remove 2 push nuts securing engine coolant heater wire, and position aside (if equipped). Carefully position aside generator coolant pipe/surge tank pipe from fuel rail studs. Disconnect
electrical connectors from fuel injectors.
Remove bolts attaching fuel rail onto intake manifold. Lift entire fuel rail and injector assembly from intake manifold. Loosen plenum duct clamp at rear of intake manifold. Remove bolts
attaching intake manifold onto cylinder heads. Using an upward lifting motion at front of manifold, remove intake manifold.
CAUTION: If throttle body was removed, Do not reuse old "O" ring seal. Do not apply silicone lubricant to "O" ring seal.
Gaskets are secured onto intake manifold with a snap lock. If plastic
housing or rubber seals are not damaged, reuse gaskets.
If throttle body was removed, position NEW throttle body "O" ring seal (coated with petroleum jelly) onto throttle body. Install intake manifold. Tighten intake manifold bolts to specification in several
phases (start with inner bolts and work outward). See TORQUE SPECIFICATIONS. To complete installation, reverse removal procedure.
Friday, February 10th, 2012 AT 12:07 AM