MULTI-PORT FUEL INJECTION DISASSEMBLY AND REASSEMBLY SERVICE MANUAL NUMBER 23
Page 5C-14 90-861326--1 MARCH 1999
4. Remove twelve plenum mounting fasteners and lift straight up from intake manifold.
Turn plenum slightly and rest on intake manifold as shown. Disconnect drain line at
plenum and remove plenum.
72797
a
c
b
a-Plenum
b-Intake Manifold
c-Drain Line
IMPORTANT: Place a clean shop towel over each of the eight intake manifold open-
ings to prevent foreign material from entering the engine.
CLEANING AND INSPECTION
IMPORTANT: Use care when removing gasket material from intake manifold and
plenum. Failure to do so could result in damage to the intake manifold and plenum.
1. Carefully remove all gasket material from intake manifold and plenum.
2. Clean plenum in solvent and dry with compressed air.
3. Inspect mating surfaces for damage that could affect gasket sealing.
4. Inspect plenum for cracks in casting.
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