Fuel injection system: fuel railRecall 21V-971 · Mci vehicles
Motor Coach Industries recall 21V-971 covers 1,125 Mci vehicles for a fuel injection system: fuel rail problem, reported to NHTSA on December 15, 2021. The manufacturer's latest report (2023 Q4) shows 91% of affected vehicles repaired.
Source: NHTSA recall 21V971000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
Motor Coach Industries (MCI) is recalling certain 2019-2022 D4000 ISTV, D4500, 2021 D4000, D4520, 2020-2021 D4505, D4005, 2020-2022 D45CRTLE, and 2019-2021 J4500 vehicles equipped with certain Cummins X12 diesel engines. The fuel tubes between the fuel rail and the injectors for cylinders four, five, and six may fatigue and crack, which can result in a high pressure fuel leak.
The risk
A high pressure fuel leak in the presence of an ignition source can increase the risk of a fire.
The fix
On engines with 75 miles or less, Cummins dealers will install vibration isolators to the fuel tubes. Engines with more than 75 miles will receive new fuel tubes with vibration isolators. Repairs will be performed free of charge. Owner notification letters were mailed March 11, 2022. Owners may contact MCI customer service at 1-800-241-2947. MCI's number for this recall is R21-028.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
How fast cars are being fixed
91%repaired
Share of affected vehicles repaired in each quarterly report the manufacturer filed with NHTSA.