Volvo EPA2007 D13F Reference Manual page 162

156 BASIC SERVICE
Note: The coolant lines do not have to be disconnected nor coolant drained for AFI
cleaning.
5. Remove and discard the aftertreatment fuel injector mounting bolts and spacers,
and then remove the injector from the diffuser pipe attached to the turbocharger outlet.
6. Cover the opening in the diffuser pipe to prevent dirt and cleaning fluid from
entering the exhaust system.
7. Remove and discard the high-temperature gasket and steel plate gasket from the
bottom of the injector.
8. Carefully turn the AFI body and spray the injector tip with carburetor cleaning
solution. Brush the injector tip with a stiff bristled nylon toothbrush. Repeat two
or three times.
CAUTION
Do NOT kink the fuel and coolant lines when cleaning the injector. Kinking the
lines may result in leakage.
CAUTION
Only carburetor cleaner should be used for cleaning the injector. Other cleaners,
such as brake cleaner products, do not work and may contain chlorine that could
damage the catalyst if they enter the exhaust system.
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