Auto Parts: Wont Shift into 4th gear, land rover discovery, overdrive switch


Question
QUESTION: I own a 1996 Land Rover Discovery 1, it will not shift into fourth gear. the car will get up to about 50 and will almost jolt or attempt to shift but it feels like something tells it to stay in third. many people have told me that it was just an overdrive switch but it turns out it wasn't. the check engine light is on along with the anti-lock light (if that has anything to do with it). I've heard many things that people say what it could be, like the cam sensor or the speed sensor or even the computer. Also sometimes when you first start the car and put it into drive it will just stay in what seems to be neutral unless you play with the differential stick or rev the engine up to 2000 RPM's.(whether this is a separate problem from the transmission or not i don't know) PLEASE HELP!


ANSWER: Hi Chris,

Sounds like your trans is giving you multiple issues. The shift problem is NOT related to the delayed engagement of the trans. delayed engagement will be caused by either dirty fluid, lack of proper amount of fluid or possibly a weak front pump. The shifting issue sounds like it is a bad 2-4 ban actuator or bad clutches/steels in the fourth gear drum clutch-pack.

Multiple problems should indicate that the trans is ready to give-up and is in need of being rebuilt or replaced.

Looking for a reputable service technician? My advice on finding a good technician is: Steer clear of the dealership and 'chain' stores like Firestone, Sears, Pep Boys, Monro Muffler/Brake, Midas, etc. as they usually only employ ONE ASE Certified Tech just so they can say they do and chances are, that guy is the asst. manager or manager and is not in the store to diagnose/repair vehicles anyway. Find a service location in the link below or get some names out of the yellow-pages and do a drive-by. Garages that employ ASE Certified Technicians will be marked with the 'Blue-Seal' insignia. If unsure about whether a place employs Certified Techs, just ask to see their credentials. ALL ASE Certified Technicians will be PROUD to show and display their certificate(s).

Thanks for the question, I hope this information was helpful to you.
Fred
Knucklebusters Used Auto & Truck Parts, Inc.
www.knucklebusters.us
570-453-0910
"Re-use is the best form of recycling" Help us recycle by purchasing used parts from us!
Looking for an ASE Certified shop near you? ASE Certified Technicians are the BEST of the BEST!
Click here: http://www.ase.com/bluesealsearch/locator.php

---------- FOLLOW-UP ----------

QUESTION: Where is the reservoir for the transfer case gear oil? And where is the 2-4 ban actuator?

Answer
Hi Chris,

Reservoir for T-case fluid? There is no reservoir, the T-case holds all the fluid needed for operation as well as lubrication. It is a sumpless system.

The 2-4 ban actuator is mounted to the side of the transmission. Removal without specialty tools is impossible and adjustment is likewise, impossible without proper knowledge.

Take it to a reputable transmission repair facility in your area.

Looking for a reputable service technician? My advice on finding a good technician is: Steer clear of the dealership and 'chain' stores like Firestone, Sears, Pep Boys, Monro Muffler/Brake, Midas, etc. as they usually only employ ONE ASE Certified Tech just so they can say they do and chances are, that guy is the asst. manager or manager and is not in the store to diagnose/repair vehicles anyway. Find a service location in the link below or get some names out of the yellow-pages and do a drive-by. Garages that employ ASE Certified Technicians will be marked with the 'Blue-Seal' insignia. If unsure about whether a place employs Certified Techs, just ask to see their credentials. ALL ASE Certified Technicians will be PROUD to show and display their certificate(s).

Thanks for the question, I hope this information was helpful to you.
Fred
Knucklebusters Used Auto & Truck Parts, Inc.
www.knucklebusters.us
570-453-0910
"Re-use is the best form of recycling" Help us recycle by purchasing used parts from us!
Looking for an ASE Certified shop near you? ASE Certified Technicians are the BEST of the BEST!
Click here: http://www.ase.com/bluesealsearch/locator.php