|
sounds to me like a slipping stator one way clutch in the torque convertor. the multiplication of torque only happens in the convertor if the clutch holds the stator stationary and redirects the vortex oil flow back to the turbine. if the clutch slips, it allows the oil to basically swirl back to the impeller and no multiplication happens.
after the truck gets up to about 70-80 kph ( or mph equiv) it drives normal ish? if it does then it will most likely need to have the convertor replaced. flushing out the oil may help, but once the clutch has slipped for a while it damages the stator shaft surface, and the sprags loose grip, and continue to slip until destruction.
good luck.
|