You remove it and change the clutch packs.
my 1990 mercury marquis transmission is slipping in overdrive what do i need to look for and how can i fix it
you junk your car
drop the tranny pan and change the filter and after you put it back together add a bottle of Lucas transmission fix.
P1811 is transmission component slipping. Seek professional help immediately or you will do serious damage to the transmission if you continue to drive it.
if it has a clutch, the clutch needs replaced. if it's an automatic, it needs to be overhauled by a dealership or competent transmission shop.
you must change out the tourqe converter or hydrolic kit on trans.
why is my manual transmission slipping on my 1999 chev cavalier
Sadly, you will need a rebuild or a new/used tranny. You can try the Lucas Transmission oil, it claims to stop slipping, but did not work in my 97 Malibu. I ended up trading it off, too expensive to fix.
If it is slipping in those gears then it is time for a rebuild. no EASY FIX
If the transmission is slipping there is a serious internal issue (90 % probability)It is possible that it is a control issue but not very.Have a qualified person scan the computer system to see what the problem is.Have a qualified person disassemble and repair the transmission.
Check your transmission fluid levels. Look around for leaks...you'll see a reddish fluid around the drive axle on your transmission or around the radiator.
try changing the tranny fluid and put a new filter in and add a bottle of Lucas transmission fix and pray.