G
Guest
Guest
Morning. Can anyone tell me why my automatic gearbox oil temp light comes on when I'm towing? well, I know why it comes on, because the oil is too hot, but why?
I've only had the vehicle (1991 HDJ80 1HD-T) for about 2 months. And when I first got it I changed the auto oil and cleaned the filter as it was not changing gear quite right, the oil in the box was very old and dirty. Anyway, new oil in and it changes gear a lot better now. But, when I'm towing something heavy (like 2 or 3 tonnes) the AT oil temp light comes on, if I slow down to about 20-30 mph it goes out. I've not had the time to look, but there must be a separate auto box oil cooler, and I guess this'll be the problem. Or it could be the auto box pump not pumping fast enough. Or.... Any ideas?
Cheers,
Matt Savage in Derbyshire, still could but no chance of snow
I've only had the vehicle (1991 HDJ80 1HD-T) for about 2 months. And when I first got it I changed the auto oil and cleaned the filter as it was not changing gear quite right, the oil in the box was very old and dirty. Anyway, new oil in and it changes gear a lot better now. But, when I'm towing something heavy (like 2 or 3 tonnes) the AT oil temp light comes on, if I slow down to about 20-30 mph it goes out. I've not had the time to look, but there must be a separate auto box oil cooler, and I guess this'll be the problem. Or it could be the auto box pump not pumping fast enough. Or.... Any ideas?
Cheers,
Matt Savage in Derbyshire, still could but no chance of snow