Hi all, I'm looking for your opinions on my auto gearbox's odd behaviour!
My car is a 99 ME7 P1 V70 T5 with a four speed AW50-42 gearbox.
It changes up and down through all of the gears smoothly and shows no signs of flaring or slipping between the gear changes whether it's hot or cold.
The problem seems to be when the torque converter locks up when I reach speeds of 50mph and above. If I'm travelling at any speed above 50mph (which I often do!) and I lift off the accelerator completely, the torque converter then disengages and the engine rpm's drop slightly - normal. However there is a delay of about 2 seconds when I reapply the throttle while the torque converter sorts itself out and locks up again, during this time the engine rpm's rise slightly like it's slipping? It does this even if I reapply the tiniest amount of throttle too.
Just to confuse me further, if I accelerate from say 30mph, when I get to 50 it locks up perfectly with no delay, it's only when I lift off and reapply the throttle.
It's been like this for about a year/10k miles now and hasn't got any worse in that time, it's just recently started to annoy me!
The ATF fluid level is spot on, is dark red in colour and doesn't smell burnt.
I've had 15 litres of Dexron 3 fluid sat in my garage for over 6 months with the intention of changing it, but I don't want to make this problem worse by introducing fresh clean ATF into the equation!
Any thoughts or suggestions will be gratefully received thanks.
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