Page 412
REPAIR INSTRUCTIONS, PART 2
EGR Valve Removal and Installation
REMOVAL PROCEDURE
Soot coating of the EGR valve heat shield
surfaces in the vicinity of the valve shaft is to be
expected. The sealing method used is similar to a
piston ring, and therefore, a small amount of soot
leakage will always be present.
1. Remove the one-piece EGR gas cool tube
following the instructions covered earlier in
this section.
2. Disconnect the oil supply and oil return lines
at the EGR valve (Figure 499).
3. Disconnect the electrical lead from the
terminal on the valve.
499
Figure 499 — EGR Valve, Installed
4. Loosen and remove the clamp from the gas
hot tube at the EGR valve. Remove and
discard the seal in the tube flange.
5. Remove the four nuts retaining the EGR
valve assembly to the exhaust manifold and
remove the valve assembly (Figure 500).
Remove and discard the metal gasket from
the manifold.
1. EGR Valve
2. Electrical Connection
3. Oil Return Line
4. Mounting Studs/Nuts
5. EGR Hot Tube
5-111.bk Page 412 Monday, July 10, 2006 2:26 PM
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