K Yukon/Denali 4WD V8-6.5L DSL Turbo VIN S (1999)
used to break loose the element nut.
6. Remove the filler by lifting it straight up and out of the filter assembly. It is not necessary to drain fuel from the filter assembly to change the filter
element since the fuel will remain in the filter assembly's cavity.
INSTALLATION PROCEDURE
IMPORTANT: Make sure the mating surface between the element assembly and the filter assembly is clean before installation.
1. Install the new filter by aligning the widest key slot located under the element assembly cap with the widest key in the header assembly.
2. Push the element, in a downward direction until the mating surfaces make contact.
NOTE: Refer to Fastener Notice in Cautions and Notices.
3. Install the element nut.
Tighten
Tighten the element nut securely by hand.
4. Bleed the air from the fuel manager/filter. Refer to Fuel Feed and Fuel Return Pipe Purge Procedure.