Auto Tranny Torque converter lock at 60km/h

[Nightrod111 Member Find all posts View Profile Close Nightrod111]

hi
When i drive on a flat surface my torque converter locks cuts in and out at 60km/h. It also seems to be hunting alot.

At 70km/h and above it locks and stays locked unless i have a decent incline.

are any of you experiencing the same thing? Is this normal ?

[Symo Advanced Member Find all posts View Profile Close Symo]

Yep, because the torque load in 5th at that speed is too great so it breaks.

You could shift to S4 and it will stay locked longer.

Don't worry about it, just ignore it and let it soet itself out.

[Kev7762 Senior Member Find all posts View Profile Close Kev7762]

Agree, normal behaviour. The tranny is just sorting itself out, however as Symo suggests letting it hunt is not good either so in some situations (going up hill for instance) you may need to slip into S mode and force it to stick in the lower gear, remember though when you shift to S4 you are dropping down a gear as well as out of lockup so there will be a larger increase in revs than just dropping out of lockup.

[madmax1982 Junior Member Find all posts View Profile Close madmax1982]

Same here even with the four speed auto, in 3 stays locked from 40km/h but in D keeps hunting, then after 70km/h stays locked