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October 19, 2020 NHTSA CAMPAIGN NUMBER: 20V645000
Vacuum Pump Failure Due to Heat Exposure
If loss of vacuum occurs, power brake assist may become inoperable, increasing the risk of a crash.
NHTSA Campaign Number: 20V645
Manufacturer Mitsubishi Motors North America, Inc.
Components SERVICE BRAKES, HYDRAULIC
Potential Number of Units Affected 4,332
Summary
Mitsubishi Fuso Truck of America, Inc. (MFTA) is recalling certain 2019-2021 FEC7T, FECZT, and FEC9T vehicles. The brake booster vacuum pump assembly may be affected by heat radiating off the exhaust manifold during normal engine operation. This heat can cause the diaphragm in the pump to crack, resulting in loss of vacuum in the vacuum pump.
Remedy
Dealers will replace the vacuum pump and install exhaust heat shields, free of charge. Interim notification letters were mailed to owners on June 28, 2021. Owners may contact MFTA customer service at 1-877-711-0707.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
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