nick here again . have been using tow/haul feature and that mostly cures low rpm vibration . 15000 kms on truck now maybe my trans is a slow learner . tow haul feature raises motor rpm by 200 rpm with a down shift vibration goes away . motor is CLEARLY LUGGING . it seems the motor doesn<t have...
has anyone talk to their ford service dept. regarding a low speed drivetrain vibration . This problem seems to occur when i am coasting from highway speed [50/60] mph to 30/40 mph . The trans is staying in9th or 10th gear and motor turning 1250 rpm and there is a noticable vibration that can be...