transmission goes bad

greatiliad · Post by **greatiliad** » Thu Sep 28, 2006 2:55 pm

The car move, but can not accelate
in all shift
I guess the transmission fluid leak

lanowoo · Post by **lanowoo** » Thu Sep 28, 2006 3:29 pm

now is yours manual or automatic?? i forget lol but if it is auto, check if there are any hoses or vacume lines ( don't deal wiht auto trannys very much)that are loose and yeah check to see if there is any fluid in there, or could the shift selector bunch could be loose or disconnected and if it is manual, see if you have any clutch play, and is it grabbing the gears ? tell me model, make, tranny, caliber lol

greatiliad · Post by **greatiliad** » Fri Sep 29, 2006 12:51 am

lanos 1.6 AT
a little bit confused
is there any vancume hose connect to transmission??

greatiliad · Post by **greatiliad** » Fri Sep 29, 2006 3:54 pm

I test it today, there is no leak and the fluid is enough.
when I use front gear, it loss power, the car move, but very slow
when I use reverse gear, the car kind of move and can accelerate, but after that, when I push brake, the engine will stall

It looks like something wrong in the solenoid or oil system.

Is any one have some experience to deal with this?

probably, I will change the transmission filter first, to see if I can save my car.
otherwise, I may lost it.

lanowoo · Post by **lanowoo** » Fri Sep 29, 2006 4:23 pm

I am sorry for confusing you lol, i don't know about the daewoo automatic tranny but most trannys are hydromatics and some are all electronic operated, i don't know about the daewoo one though, sorry. It does seem that your transmission is going out, the gears are usually worn down or broken, you can usually tell if a automatic is going out because the reverse is the first to go (was there alot of increased time between shifts, or high rpm to move the car ) , seeing its the closest to the torqe converter on some cars. The torque/flywheel may get in a bind by the seals in the tranny that are warped, and that when you step on the brakes, it could, make the tranny shift enuf to do a dead lock up and make the engine die with it, but i would first look into seeing if the torque converter is broken or defective, cause unless it has difficulties staying in park and running then i would defitely check your torque converter since it is the cheapest thing on the tranny to fix.

GsiTurbo · Post by **GsiTurbo** » Fri Sep 29, 2006 6:25 pm

When was the last time you have changed the filter? If its clogged, there will not be enough pressure in the system to power the car. Perhaps you should start with having the gearbox flushed and filter replaced. Also, you may require to change the gasket in the valve body of the gbox.

Tom

greatiliad · Post by **greatiliad** » Fri Sep 29, 2006 6:39 pm

the transmission for lanos 1.6l is GM 4T40-E, which is a very popular one , widely used for chevy, pontiac and many other GM cars.

I suspect the TCC Solenoid and Transmission Filter now

base on the manual,
If the car loss power, the check sequence is 1)fluid level (check), 2) shift Solenoid(I don't think so) 3) TCC solenoid(I suspect) 4) torque convert(If the car can reverse,I don't think so)

if the engine stall, the manual says to check the TCC system.

So, I suspect the TCC solenoid

for reguler thinking, I should replace the transmission filter first, usually, which causes most problems