Having problems with your 1995 Subaru Legacy ?

Rear cluch not working - 1995 Subaru Legacy

Posted / edited by AnonymousUser on : 23-10-2017

Answers :

Depends on what model and components you have:

{ ...
ENGINE TORQUE DISTRIBUTION – DIRECTING THE FLOW \015\012OF POWER
\015\012\011\011\015\012\011\011In an all-wheel-drive vehicle, engine power can be\015\012 directed to all four wheels. Subaru Symmetrical AWD differs slightly \015\012from model to model in how it directs power to the wheels, depending on \015\012its transmission.

\015\012\011\011MODELS \015\012WITH FIVE-SPEED MANUAL TRANSMISSION – CONTINUOUS ALL-WHEEL DRIVE:\015\012 A viscous-type locking center differential and limited-slip rear \015\012differential help distribute torque – normally configured at a 50/50 \015\012split front to rear. If wheel speed differs between front and rear \015\012axles, the center and/or rear differentials lock up to help distribute \015\012power to the wheels with the most traction.

\015\012\011\011MODELS \015\012WITH FOUR-SPEED AUTOMATIC TRANSMISSIONS – ACTIVE ALL-WHEEL DRIVE:\015\012 An electronically controlled variable transfer clutch and limited-slip \015\012rear differential distribute power to where traction is needed. Sensors \015\012monitor parameters such as wheel slippage, throttle position, and \015\012braking to help determine torque distribution and direct it to the \015\012wheels with optimum traction.

\015\012\011\011MODELS \015\012WITH FIVE-SPEED AUTOMATIC TRANSMISSION – VARIABLE TORQUE DISTRIBUTION \015\012ALL-WHEEL DRIVE: As with Active All-Wheel Drive, an \015\012electronically controlled variable transfer clutch distributes power, \015\012but through a planetary-type center differential and a viscous-type \015\012limited-slip rear differential. Torque distribution is normally \015\012configured at a performance-oriented rear-wheel-biased 45/55 split front\015\012 to rear. Sensors monitor the same parameters as for Active All-Wheel \015\012Drive.

\015\012\011\011WRX STI, \015\012WITH SIX-SPEED MANUAL TRANSMISSION – DRIVER CONTROLLED CENTER \015\012DIFFERENTIAL (DCCD) ALL-WHEEL DRIVE: The STI uses an \015\012electronically managed multi-plate transfer clutch and a mechanical \015\012limited-slip differential in conjunction with a planetary-gear-type \015\012center differential to control power distribution between the front and \015\012rear wheels. Featuring manual and three automatic modes, DCCD is \015\012normally configured at a 41/59 split front to rear. Sensors monitor \015\012parameters such as wheel slippage, steering angle, throttle position, \015\012and braking to help determine torque distribution and direct it to the \015\012wheels with optimum traction. DCCD also features a limited-slip helical \015\012front and Torsen® rear differential. ... }

And what are the symptoms? How do you know the coupling to the rear is not working?
Thanks for the useful summary Kirk. My 1998 Legacy Lancaster (Japanese version of the Outback) is the 5 speed auto - I've jacked up front and rear wheels on one side and confirmed there is no drive to the rear in any gear including reverse. The driveshaft, rear diff and wheels are all connected OK, just no connection via the transfer case to the transmission. Just the occasional thump on hard acceleration when it feels like the rear wheels briefly kick in.
Repair Help & Product Troubleshooting for 1995 Subaru Legacy

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