TECHNICAL SERVICE BULLETIN: SUPPLEMENTAL VACUUM PUMP INSPECTION AND REPAIR (SC204) - This bulletin provides the procedure to inspect and replace the rotor and vane in the supplemental brake vacuum pump on some 2018MY Stinger (CK) vehicles produced from September 21, 2017 through April 24, 2018. When the engine has not reached the normal operating temperature, particularly right after being turned on after being parked overnight, repeatedly and quickly applying the brakes can damage the rotor in the supplemental brake vacuum pump.
