Milwaukee-eight equipped vehicles - loss of power or high engine braking.
Harley-Davidson technical service bulletin 1HD-X3H4B-12 for 2017-2018 Harley-Davidson Flhtcu, 2017-2018 Harley-Davidson FLHX and 2017-2018 Harley-Davidson Flhtk and others.
- Bulletin number
- 1HD-X3H4B-12
- Component
- Power train
- Summary
- SERVICE BULLETIN M1450: MILWAUKEE-EIGHT EQUIPPED VEHICLES - LOSS OF POWER OR HIGH ENGINE BRAKING. Purpose: 2017 and 2018 model motorcycles equipped with a Milwaukee-Eight engine can experience a condition known as sumping during extended periods at high rpm or under heavy engine load. This bulletin provides the diagnostic procedure for determining if sumping is occurring.
Owners of these vehicles have filed 55 complaints in the transmission category.
Vehicles covered
- Harley-Davidson Flhtcu 2017-2018 20172018
- Harley-Davidson FLHX 2017-2018 20172018
- Harley-Davidson Flhtk 2017-2018 20172018
- Harley-Davidson FLHR 2017-2018 20172018
- Harley-Davidson Flhtcutg 2017-2018 20172018
- Harley-Davidson Fltrx 2017-2018 20172018
- Harley-Davidson Flhxs 2017-2018 20172018
- Harley-Davidson Fltrxs 2017-2018 20172018
- Harley-Davidson Flstf 2017 2017
- Harley-Davidson FLHP 2017-2018 20172018
- Harley-Davidson Flhxse 2017-2018 20172018
- Harley-Davidson Flhtkse 2017-2018 20172018
- Harley-Davidson Flstn 2017 2017
- Harley-Davidson Flhtp 2017-2018 20172018
- Harley-Davidson FLRT 2017-2018 20172018
- Harley-Davidson Flhtkl 2017-2018 20172018
- Harley-Davidson Fltruse 2017-2018 20172018
- Harley-Davidson Flhtcul 2017-2018 20172018
- Harley-Davidson FLSL 2018 2018
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