Lower Intake Manifold: Removal
- Remove the upper intake manifold. For additional information, refer to UPPER INTAKE MANIFOLD .
- Disconnect the fuel hose spring lock couplings. For additional information, refer to FUEL SYSTEM-GENERAL INFORMATION .
- Disconnect the engine water bypass hose.
- Disconnect the water temperature indicator sender electrical connector.
- Disconnect the upper radiator hose, the heater water inlet hose and the heated positive crankcase ventilation (PCV) water heated fitting inlet hose.
- Remove the four bolts and the generator upper support bracket.
- Disconnect the eight fuel injectors.
- Disconnect the fuel injector pressure regulator vacuum hose and position out of the way.
- Disconnect the wire harness pin-type retainer.
- Remove the bolts and lower intake manifold.
- Discard the bolts.
- Remove the bolts and the radio ignition interference capacitors.
- Remove and inspect the gaskets, and install new gaskets if necessary.
- Clean the sealing surfaces.
CAUTION:
Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges which make leak paths. Use a plastic scraping tool to remove all traces of old sealant.