Lack Of Heat On Driver Side Vents When Operating In Ambient Temperatures Below -20°C (4°F) – 2017-2018 Ford F-Super Duty
NHTSA ID Number: 10144918 Manufacturer Communication Number: TSB 18-2253 Summary Some 2017-2018 F-Super Duty vehicles equipped with a 6.7L engine built on or before 8-Jul-2018 may exhibit a lack of heat coming from the driver side vents when operating the vehicle in ambient temperatures below -20Å?C (4Å?F). This condition may be due to deposits from the … Read more