Page 408
REPAIR INSTRUCTIONS, PART 2
EGR Cooler Removal and
Installation
REMOVAL PROCEDURE
1. Drain the cooling system in preparation for
removal of the EGR cooler. A petcock is
located at the lower rear corner of the cooler
to drain coolant retained in the cooler
(Figure 492).
492
Figure 492 — EGR Cooler, Installed
2. Loosen and remove the hot tube clamp at
the EGR cooler gas inlet port (Figure 493).
493
Figure 493 — Hot Tube-to-Cooler Connection
3. Loosen and remove the cool tube coupling
hose clamp at the EGR cooler gas outlet
port (Figure 494).
494
Figure 494 — Cool Tube-to-Cooler Connection
Early-production engines have a flange-style
outlet port which requires a coupling adapter in
combination with the one-piece cool tube. If so
equipped, the coupling adapter can be removed
as an assembly with the cooler.
1. EGR Gas Hot Tube
2. EGR Gas Cool Tube
Coupling Hose
3. Coolant Supply Pipe
4. Coolant Return Hose
5. EGR Cooler (Note that
the petcock for the
coolant drain is at the
lower left corner of the
cooler.)
1. EGR Gas Hot Tube 2. EGR Cooler
1. EGR Cooler 2. EGR Gas Cool Tube
Coupling Hose
5-111.bk Page 408 Monday, July 10, 2006 2:26 PM
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