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Re: transmission doesnt shift in forward
We have seen some gaskets breaking inside the valve body. They get brittle and crack between ports causing shifting issues. Check your fluid level also. Should be in crosshatch area when hot. Check it while car is running in PARK position.
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Fuse # 20 or 21 gets power through ignition. This fuse controls PRNDL indicator, speedometer, tach, & will cause transmission to not shift gears correctly. Ours took off in 3rd gear when put in Overdrive & only ran in 3rd gear. If we tried to manually shift thru gears (auto trans), it had 1st, 3rd, reverse. No 2nd or over drive. Replaced ignition. Fixed problem. Root problem was Electric motor that engaged 4 wheel low side was bad. Every time we used 4 Low side it threw power surge through ignition & blew ignition out. Good Luck.
Trans shifts into gear harshly, car feels sluggish off the line,
No 1st, 4th or TCC lockup available, Manual 2nd, 3rd and Reverse are
only available gears, CEL is on: Transmission is either in limp-home
mode or has lost electrical power. If there are lots of error codes in
the PCM, check the under-hood fuse that powers the transmission, and if
it pops again, look for a short in that circuit like an O2 sensor
harness touching exhaust. Otherwise, check PCM codes for a particular
fault in the transmission causing the PCM to put it in limp-home mode.
No 1st or 4th available; trans shifts 2nd to 3rd by itself in D or OD and locks the converter : ShiftA solenoid failed. Easy fix in the pan. Or a wiring problem from PCM to trans.. or PCM.
Car goes into gear but feels very sluggish like the brakes are dragging,
but it will roll easily (starts out in 4th gear), you manually shift to
2 to get it moving, once it's moving you put it back in OD and the car
shifts 3rd to 4th on its own and locks the converter at the appropriate
time: ShiftB solenoid failed: Easy fix in the pan. Or a wiring problem
from PCM to trans.. or PCM.
Good luck and keep me posted, there are other things but these things mentioned seam like what you described.
yes this is a defective trans, u either have a worn out direct clutch or a hydraulic leak inside the trans, u can try changing the fluid and filter it may help, if not you will need to replace the trans.
Your trans is stuck in safe mode, you are only using 2nd gear, this means it is not shifting but staying at a gear so you will not damage the trans. This is an electrical setting , however usually comes from the computer receiving bad information , rough shift, however it can be reset. Remove the positive battery cable for 30 minutes then see if it shifts, also check your fluid level, it can go into safe mode from low fluid if you made a turn and the trans slipped from low fluid . If your trans goes back into safe mode again have it checked, most important, do not drive over 45 mph or allow your rpms to raise over 3 , I have seen many motor problems that spawned from this type of trans problem, if not corrected.
Here is some possible reasons why your transmission is having those problems .
* The gear shift linkage is binding
* There is an internal problem in the transmission
* The throttle cable is broken or disconnected
* The vacuum modulator on the transmission is faulty or the vacuum line is damaged
* The electronic transmission control circuit may be faulty
Have you tried taking the car in for maintenance? Usually on most (older) auto transmissions there is a hose coming off of the exhaust manifold or carburetor area that provides the pressure for the transmission fluid. If that hose doesn't have a good seal, your shifting may be difficult and the transmission may not stay in the gear you want it to.