Topcat2Vin
Regular Member
- Joined
- Jul 5, 2023
- Points
- 16
Hi, looking advise on an auto gearbox.
It's a GM 4 speed I think. It was changing gesr badly so I got ATF and filter changed about 4 months ago. When drained, there was not a lot of ATF in the box. After service it was changing rough but after a few weeks ran better for a while. Recently when in D it does not changing 2nd to 3rd some of the time and on way down it doesn't change 3rd to 2nd so runs at low revs and judders. I checked ATF level and this is fine.
If I put the gearbox in 'gear 3' it's fine.
Any ideas what issue is? Do I need to service gearbox again with new filter?
Thanks
It's a GM 4 speed I think. It was changing gesr badly so I got ATF and filter changed about 4 months ago. When drained, there was not a lot of ATF in the box. After service it was changing rough but after a few weeks ran better for a while. Recently when in D it does not changing 2nd to 3rd some of the time and on way down it doesn't change 3rd to 2nd so runs at low revs and judders. I checked ATF level and this is fine.
If I put the gearbox in 'gear 3' it's fine.
Any ideas what issue is? Do I need to service gearbox again with new filter?
Thanks