DIAGNOSTIC MANUAL
1. New Aftertreatment Fuel Injector
(AFI) gasket
2. Early production AFI gasket
Figure 2
AFI Gasket
Step
Action
Decision
13
CAUTION
Do not remove the nozzle injector from the
doser housing. Spray pattern test is no longer a
visual check for Aftertreatment Fuel Injector (AFI)
replacement.
Perform Aftertreatment Fuel Injector (AFI) visual inspection. Remove
AFI (see Engine Service Manual) and check for the following:
Visual Checks:
•
Correct AFI gasket is installed (Figure 2)
•
AFI and bore unrestricted and free of carbon buildup
•
AFI tip free of cracks and other damage
Did AFI pass all visual checks?
Yes: Install AFI, and go to
step 14.
No: Correct failed visual
check(s). After repairs are
complete, install AFI and go
to step 14.
31
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