Thought it was informative and includes a bunch of troubleshooting ideas for various issues.
It's a 182 pages long so too much to post here, but here's a sample:
Vehicle: All Technical Service Bulletins
Technical Service Bulletin # 11-51-97 Date: 971205
AWD & Full-Time 4WD Diagnostic Testing Precautions
NUMBER: 11-51-97
DATE: 12-05-97
APPLICABILITY:
All Subaru Full-Time AWD Models
SUBJECT:
Diagnostic Service Cautions
Service Bulletin # 11-50-97, concerning State emission testing of Full-Time 4WD and AWD models, includes a Warning Statement that testing of
subject vehicles must never be performed on single two-wheel dynamometer nor should the diagnostic service FWD fuse be installed in the engine
compartment. Attempting to do so will result in uncontrolled vehicle movement and may cause an accident or injuries to persons nearby.
Should you encounter a need to perform diagnostic service on a Full-Time 4WD or AWD model such as transfer clutch pressure test or service
requiring the front wheels raised on rollers (brake tester, chassis dynamometer, etc.) and usage of the diagnostic FWD fuse, please ensure proper
vehicle tie-down procedures and operate the vehicle at extremely low speed (5-10 mph).
!CAUTION!
The above diagnostic service cautions are to preclude uncontrolled vehicle movement and/or injuries to persons nearby.
If you have any questions, please contact the Subaru Technical Helpline for assistance.
Technical Service Bulletin # SHU0593 Date: 930501
Modified 4EAT Pump Gasket
A modified 4EAT pump gasket is now available through normal parts channels. The new Part Number is 31339AA121 and can be easily identified
because the new gasket material is a coated steel type of gasket. This gasket was incorporated in production since November 1992 starting with the
following transmission numbers:
SVX: TRANS # 513102 AND AFTER
LEGACY: TRANS # 527022 AND AFTER
IMPREZA: ALL TRANSMISSIONS
NOTE:
When installing the new type pump gasket on vehicles before the production change you must remove the oil guide plate because it will interfere
with the installation of the modified gasket. (See the illustration.)
1992MY Legacy 4EAT ATK-50 VIN Range Clarification
4-Door Sedans Station Wagons
SIA: N*600001 through N*616806 SIA: N*900001 through N*924131
FHI: N*600001 through N*605769 FHI: N*900001 through N*904476
All 1991-1992MY RHD postal vehicles regardless of VIN.
All 1993MY RHD Postal vehicles had filter kits installed during production.1993 Subaru Legacy Sedan 4WD F4-2212cc 2.2L SOHC Turbo Copyright © 2008, ALLDATA 9.80 Page 2
Legacy Zexel Air Conditioning
If you receive a Customer complaint of a slight "chirp" or "squeak" when the compressor is engaged and also during A/C cycling", do not replace the
compressor. Verify proper belt tension and A/C system operation using the applicable service manual. If the A/C system is not used for a period of
time, the compressor and clutch assembly may require a break-in procedure to be performed. This procedure can be found in Service Bulletin 10-57-90,
Dated 05-29-90, titled "A/C Compressor Inspections". As the customer uses the A/C or defrost modes. the chirp" or "squeak" will diminish. Also, the
red clutch dust (rust like substance) is normal and will accumulate during normal usage. Do not replace the compressor or clutch for these conditions.
Legacy Compressor Belt Tension
Use a belt tension gauge approved for use on serpentine type belts.
Calsonic recommends 144-166 lbs. for a new belt. Zexel recommends 145-165 lbs. for a new belt.
Anti-Lock Brakes For Legacy
We have received calls on the Technical Service Helpline concerning the hydraulic unit bleeding procedure for a "Bosch" type hydraulic unit. This
information plus corrected information for the Nippon system can be found in the "ABS" Supplement Manual MSA5T9023D or in the 1992 Legacy
Service Manual. The Bosch type hydraulic unit does not have plugs for bleeding the air from the solenoid valves like the Nippon unit has. In order to
bleed air from solenoid valves you must loosen the brake line to one solenoid valve at a time while energizing the hydraulic unit. Also, use Service
Bulletin 06-24-91 Dated 08-15-91, "Secondary Side Bleeding of ABS Hydraulic control Unit: to engage the hydraulic unit ground terminals 1 and 2
and power terminals 11 and 12 of connector F9.
NOTE:
DO NOT RUN THE HYDRAULIC UNIT FOR MORE THAN FIVE SECONDS OR THE UNIT MAY BECOME PERMANENTLY
DAMAGED.
93MY Legacy "SRS" Airbag Light Stays on
If you encounter a Legacy with the "airbag" light on all the time, make sure you check the double-lock connectors AB2 and AB7 behind the airbag
module in the steering wheel. If the connectors are not double locked the supplemental restraint system control in the console may not show any codes
but the light will stay "on".
Legacy All Wheel Drive Fuel Gauge
We have received several Technical Service Helpline calls about the location and part number of the delay amplifier. The delay amplifier is not used in
a U.S.A. specification Subaru Legacy.
Legacy Knock Sensor Testing
When using a digital volt/ohm tester to test the knock sensor, output keep the following information in mind: most DVM's will not read 1/260,000 ohms
or 560 k ohms specification but, they will display .560 m ohms or .560 million ohms which is the same as 560 k ohms.
92MYSVX Auxiliary Air Valve Disconnection
If you receive a customer complaint of engine will not idle and stalls-out, check the hose from the throttle body to the auxiliary air valve for
disconnection at the air valve nipple. If this vacuum hose comes off other symptoms, such as black smoke from exhaust when engine is started and the
check engine light is on and no codes are found in the ECU memory may occur. Install a hose clamp at the air valve connection to prevent the hose
from becoming disconnected. All 93my SVX models will be equipped with a hose clamp at the air valve hose connection to ensure a secure connection.
Alternate ECVT Pulley Alignment Formula
Use the completed alternate formula as an example when performing the mathematical formula to find the secondary pulley shim thickness. Attach this
example with Service Bulletin 16-34-89, Dated 07-05-89 for future reference.
Alternate Formula for Pulley AlignmentTechnical Service Bulletin # 01-143-96 Date: 961223
Service Manual - Sealants and Adhesives Updates1993 Subaru Legacy Sedan 4WD F4-2212cc 2.2L SOHC Turbo Copyright © 2008, ALLDATA 9.80 Page 3
NUMBER 01-143-96
DATE: 12/23/96
APPLICABILITY
ALL MODELS
SUBJECT
RECOMMENDED SEALANTS AND ADHESIVES
Please use this information to update the Genuine Subani Service Manuals section 1-3, General Information, "Sealants and Adhesives". All products
listed in this bulletin are trademarks of the 3M, CEMENDINE, DOW-CORNING, THREEBOND, STAR CALK, ESSEX, SIKA and
LOCTITE/PERMATEX Corporations.
SEALANTS
Note:
The 3M T-3 Silicone product # 08670 is "Oxene based" which is odor free and will not affect vehicle sensors I.E., oxygen sensor, etc.Technical
Service Bulletin # 0114597 Date: 970606
Tie Down Procedures To Prevent Engine Damage
NUMBER: 01-145-97
DATE: 06-06-97
APPLICABILITY: ALL SUBARU VEHICLES
SUBJECT:
TIE DOWN PROCEDURES TO PREVENT ENGINE DAMAGE
When any Subaru vehicle is tied down, it is required that the transmission be left in neutral with the emergency brake firmly applied. The vehicle is to
be kept in neutral during transportation.
Please ensure all necessary personnel are informed of this important information.
