This is an indication that the forward clutch pack has failed in the transmission or that the clutch pack has low hydraulic pressure from an internal fluid leak or a defective check ball. Pull the pan off the bottom of the transmission, if it is really full of dark sludge you will need to replace/repair the transmission.
SOURCE: My Transmission does not move either forward or reverse...
the transmission cable might have been broken/cut.
if it is using fluid. the cap could be worn out and fluid is insufficient, change them and refill fluid.
SOURCE: my transmission slips in reverse but is fine in
time for transmisson filter and fluid, most likely losing rear clutch pack it's pucker up time.
SOURCE: Isuzu bighorn automatic transmission slips after heating
Change your gearbox oil, and clean out the oil strainer.
Should help.
( On some models, you have to remove the gearbox oil pan to clean the strainer )
SOURCE: Isuzu bighorn 1994 manual, slips out of 4th and
check gearbox oil level as dry syncro rings can also cause your box to jump out of gear ,detent springs are only for giving u the feel of positive gear engagement.
SOURCE: 1992 grand prix transmission slip in reverse
Slow, slipping or no reverse: “lo-reverse” clutches are worn out,
fluid leak in the reverse apply circuit. It is
possible to remedy a fluid problem by removing the checkball from its
cage in the case in the trans may help (must remove
valvebody), or adding a high-viscosity additive such as Lucas
Transmission additive or other seal restorer product. May also have worn
boost valve (can replace in the pan).
Thank you for using fixya and good luck
http://howtobyme.blogspot.com/2011/11/automatic-transmission-will-not-go-into.html
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Automatic transmission shift lever
issues?-------
http://technoanswers.blogspot.com/2012/01/automatic-transmission-shift-lever-hard.html
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AUTOMATIC TRANSMISSION FLUID LEVEL? --
http://schematicsdiagram.blogspot.com/2011/07/how-to-check-automatic-transmission.html
--------------
AUTOMATIC TRANSMISSION FLUID AND
FILTER?
http://schematicsdiagram.blogspot.com/2011/07/how-to-change-automatic-transmission.html
-----------
Transmission fault light on
car dash?
http://schematicsdiagram.blogspot.com/2011/12/transmission-fault-light-on-car-dash.html
--------
Transmission shifting
problem?
http://schematicsdiagram.blogspot.com/2012/01/transmission-shifting-problem-on-toyota.html
--------
Transmission Slips out of 2nd gear?
http://repairhelpcenter.blogspot.in/2012/02/transmission-slips-out-of-2nd-gear.html
-----------
OD light flashing and transmission fluid
leaking?
http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html
----------
Why Transmission fluid leaks near radiator?
http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html
----------
Transmission fluid leaking?
http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html
-------------
****** wont go in reverse?
http://technoanswers.blogspot.in/2012/02/dodge-neon-wont-go-in-reverse.html
-------------
Automatic transmission will not go into
reverse?
http://technoanswers.blogspot.in/2012/02/dodge-automatic-transmission-will-not.html
----------
Transmission is making buzzing noise?
http://technoanswers.blogspot.in/2012/02/transmission-is-making-buzzing-noise.html
-----------
This
will help.
Thanks.
http://howtobyme.blogspot.com/2011/11/automatic-transmission-will-not-go-into.html
---------
Automatic transmission shift lever issues?-------
http://technoanswers.blogspot.com/2012/01/automatic-transmission-shift-lever-hard.html
-----------
AUTOMATIC TRANSMISSION FLUID LEVEL? --
http://schematicsdiagram.blogspot.com/2011/07/how-to-check-automatic-transmission.html
--------------
AUTOMATIC TRANSMISSION FLUID AND FILTER?
http://schematicsdiagram.blogspot.com/2011/07/how-to-change-automatic-transmission.html
-----------
Transmission fault light on car dash?
http://schematicsdiagram.blogspot.com/2011/12/transmission-fault-light-on-car-dash.html
--------
Transmission shifting problem?
http://schematicsdiagram.blogspot.com/2012/01/transmission-shifting-problem-on-toyota.html
--------
Transmission Slips out of 2nd gear?
http://repairhelpcenter.blogspot.in/2012/02/transmission-slips-out-of-2nd-gear.html
-----------
OD light flashing and transmission fluid leaking?
http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html
----------
Why Transmission fluid leaks near radiator?
http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html
----------
transmission fluid leaking?
http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html
-------------
****** wont go in reverse?
http://technoanswers.blogspot.in/2012/02/dodge-neon-wont-go-in-reverse.html
-------------
Automatic transmission will not go into reverse?
http://technoanswers.blogspot.in/2012/02/dodge-automatic-transmission-will-not.html
----------
Transmission is making buzzing noise?
http://technoanswers.blogspot.in/2012/02/transmission-is-making-buzzing-noise.html
-----------
This will help.
Thanks.
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