My wife's car, a 2007 Cadillac STS AWD (5L40-E, 5 speed trans) has 185,000 miles on it and has started shifting hard/shuddering a bit between 3rd and 4th gear.
I was thinking of putting in some SeaFoam Trans Tune running it for awhile then putting in some fresh Dex 6 in but here is the problem. The car has no dipstick and I can't even find where to fill it let alone drain it.
Any ideas what is wrong and what I should do with this thing?
I was thinking of putting in some SeaFoam Trans Tune running it for awhile then putting in some fresh Dex 6 in but here is the problem. The car has no dipstick and I can't even find where to fill it let alone drain it.
Any ideas what is wrong and what I should do with this thing?