This bulletin applies to 2014-2018 Chevy Silverado vehicles equipped with a 4.3L, 5.3L or 6.2L engine. The customer may comment on an SES light on. The technician may find DTC P0300 set and/or a rough running engine concern.
Some 2012-2018 Mazda3 vehicles equipped with an automatic transmission may exhibit a squeak noise from the right front driveshaft at the transaxle. This concern is likely to occur when driving at speeds 37 – 50 mph with the ATF at normal operating temperature.