INTRODUCTION
Use this article to quickly find specifications related to servicing and on-vehicle adjustments. This is a quick-reference article to use when you are familiar with an adjustment procedure and only need a specification.
CAPACITIES
| Application | Qts. (L) |
|---|
| Baja |
| A/T (Dexron III) | 9.8-10.1 (9.3-9.6) |
| A/T Differential (GL-5) | 1.3 (1.2) |
| AWD Rear Differential (GL-5) | 0.8 (0.8) |
| Cooling System |
| A/T | 7.1 (6.7) |
| M/T | 7.2 (6.8) |
| Crankcase | 4.2 (4.0) |
| M/T (GL-5) | 3.7 (3.5) |
| Power Steering (Dexron III) | 0.7 (0.7) |
| Forester |
| A/T (Dexron III) | 9.8 (9.3) |
| A/T Differential (GL-5) | 1.3 (1.2) |
| AWD Rear Differential (GL-5) | 0.8 (0.8) |
| Cooling System | 7.3 (6.9) |
| Crankcase | 4.2 (4.0) |
| M/T (GL-5) | 3.7 (3.5) |
| Impreza & Outback Sport |
| A/T (Dexron III) |
| 2.0L | 10.0 (9.5) |
| 2.5L | 10.0 (9.5) |
| A/T Differential (GL-5) | 1.3 (1.2) |
| AWD Rear Differential (GL-5) | 0.8 (0.8) |
| Cooling System |
| Automatic 2.0L | 8.0 (7.6) |
| Manual 2.0L | 8.1 (7.7) |
| Automatic 2.5L | 7.3 (6.9) |
| Manual 2.5L | 7.4 (7.0) |
| Crankcase |
| 2.0L | 4.8 (4.5) |
| 2.5L | 4.2 (4.0) |
| M/T (GL-5) | 3.7 (3.5) |
| Power Steering | 0.7 (0.7) |
| Legacy |
| A/T (Dexron III) | 9.8-10.1 (9.3-9.6) |
| A/T Differential (GL-5) | 1.2-1.4 (1.1-1.3) |
| AWD Rear Differential (GL-5) | 0.8 (0.8) |
| Cooling System |
| A/T | 7.1 (6.7) |
| M/T | 7.2 (6.8) |
| Crankcase | 4.2 (4.0) |
| M/T (GL-5) | 3.7 (3.5) |
| Power Steering (Dexron III) | 0.7 (0.7) |
| Outback |
| A/T (Dexron III) | 9.8-10.1 (9.3-9.6) |
| A/T Differential (GL-5) | 1.2-1.4 (1.1-1.3) |
| AWD Rear Differential (GL-5) | 0.8 (0.8) |
| Cooling System |
| 2.5L 4-Cyl. | 7.1 (6.7) |
| 3.0L 6-Cyl. | 8.4 (7.9) |
| Crankcase |
| 2.5L 4-Cyl. | 4.2 (4.0) |
| 3.0L 6-Cyl. | 5.9 (5.6) |
| Power Steering (Dexron III) | 0.7 (0.7) |
Service Intervals
| Component | Interval (Miles) |
|---|
| Air Filter | (1) 30,000 |
| Automatic Transmission Fluid | (2) (12) 30,000 |
| Brake Fluid | (3) 30,000 |
| Brake Shoe Linings & Drums | (4) 30,000 |
| Camshaft Timing Belt |
| 2.0L & 2.5L | 30,000 |
| 3.0L | (5) |
| Clutch | (6) 15,000 |
| Coolant (Radiator) | 30,000 |
| Disc Brake Pads & Discs, Front & Rear Axle Boots & Shaft Joint Portions | (4) 15,000 |
| Drive Belt(s) | (6) 30,000 |
| Front & Rear Wheel Bearing Lubrication | (6) 60,000 |
| Fuel Filter | (4) (7) (11) 30,000 |
| Inspect Brake Lines & Check Operation Of Parking & Service Brake System | (6) 15,000 |
| Oil & Filter | (8) 7,500 |
| Rotate & Inspect Tires | (9) 7,500 |
| Spark Plugs |
| 2.0L & 2.5L | 30,000 |
| 3.0L | 60,000 |
| Steering & Suspension | (4) 15,000 |
| Supplemental Restraint System | (6) Every 10 Years |
| Transmission & Differential (Front & Rear) Fluid | (2) 30,000 |
| Valve Clearance | (10) |
| (1) When the vehicle is used in extremely dusty conditions, the air cleaner element should be replaced more often. (2) When the vehicle is frequently operated under severe driving conditions, replacement should be performed every 15,000 miles (24,000 km). (3) When the vehicle is used in high humidity or mountainous areas, change the brake fluid every 15,000 miles (24,000 km) or 15 months, whichever occurs first. (4) When the vehicle is used under severe driving conditions, inspection should be performed every 7,500 miles (12,000 km) or 7 1/2 months, whichever occurs first. (5) Periodic inspection and replacement of the camshaft drive chains on the 3.0L models is not required. (6) Inspect. (7) When the vehicle is used in extremely cold or hot weather areas, contamination of the filter may occur and filter replacement should be performed more often. (8) When the vehicle is used under severe driving conditions, the engine oil and filter should be changed every 3,750 miles (6,000 km) or three months. (9) A tire should be replaced when the tread wear indicator appears as a solid band across the tread; this occurs when the remaining tread has worn to 0.063 inches (1.6 mm) or less. (10) N/A. (11) This inspection is not required to maintain emission warranty eligibility and it does not affect the manufacturers obligations under EPAs in use compliance program. (12) The ATF filter is a maintenance free part. The ATF filter needs replacement only when it has physical damage or if the ATF has leaked. |
| (1) | When the vehicle is used in extremely dusty conditions, the air cleaner element should be replaced more often. |
| (2) | When the vehicle is frequently operated under severe driving conditions, replacement should be performed every 15,000 miles (24,000 km). |
| (3) | When the vehicle is used in high humidity or mountainous areas, change the brake fluid every 15,000 miles (24,000 km) or 15 months, whichever occurs first. |
| (4) | When the vehicle is used under severe driving conditions, inspection should be performed every 7,500 miles (12,000 km) or 7 1/2 months, whichever occurs first. |
| (5) | Periodic inspection and replacement of the camshaft drive chains on the 3.0L models is not required. |
| (7) | When the vehicle is used in extremely cold or hot weather areas, contamination of the filter may occur and filter replacement should be performed more often. |
| (8) | When the vehicle is used under severe driving conditions, the engine oil and filter should be changed every 3,750 miles (6,000 km) or three months. |
| (9) | A tire should be replaced when the tread wear indicator appears as a solid band across the tread; this occurs when the remaining tread has worn to 0.063 inches (1.6 mm) or less. |
| (11) | This inspection is not required to maintain emission warranty eligibility and it does not affect the manufacturers obligations under EPAs in use compliance program. |
| (12) | The ATF filter is a maintenance free part. The ATF filter needs replacement only when it has physical damage or if the ATF has leaked. |
INSPECTION & REPLACEMENT INTERVALS
Drive Belt Adjustment
| Application (1) | Deflection - In. (mm) |
|---|
| New Belt |
| A/C | .30-.34 (7.5-8.5) |
| Alternator & P/S | .28-.35 (7.0-9.0) |
| Reused Belt |
| A/C | .35-.39 (9.0-10.0) |
| Alternator & P/S | .35-.43 (9.0-11.0) |
| (1) For Outback 3.0L, replace if automatic tensioner indicator is not within service limit range. (Scheme 1) |
| (1) | For Outback 3.0L, replace if automatic tensioner indicator is not within service limit range. (Scheme 1) |
Scheme 1
ENGINE COMPRESSION
| Application | Specification |
|---|
| Compression Pressure (1) |
| 2.0L (2) | 142-171 psi (10.0-12.0 kg/cm 2 ) |
| 2.5L (2) | 156-185 psi (11.0-13.0 kg/cm 2 ) |
| 3.0L (2) | 185-213 psi (13.0-15.0 kg/cm 2 ) |
| (1) Maximum variation between cylinders is 7 psi (.5 kg/cm 2 ). (2) Engine cranking at 350 RPM with throttle open fully. |
| (1) | Maximum variation between cylinders is 7 psi (.5 kg/cm 2 ). |
| (2) | Engine cranking at 350 RPM with throttle open fully. |
COMPRESSION SPECIFICATIONS
VALVE CLEARANCE
Note. Inspection and adjustment of valve clearance should be performed while engine is cold.
| Application | In. (mm) |
|---|
| 2.0L & 2.5L |
| Intake | 0.007-0.009 (0.18-0.22) |
| Exhaust | 0.010-0.011 (0.23-0.27) |
| 3.0L |
| Intake | 0.006-0.010 (0.14-0.23) |
| Exhaust | 0.008-0.012 (0.20-0.30) |
IGNITION COIL
Note. Ignition coil resistance is not measurable on Impreza 2.0L or Outback 3.0L. If vehicle does not start or ignition system failure is suspect, see BASIC DIAGNOSTIC PROCEDURES article.
| Application | (1) Primary | (2) Secondary |
|---|
| 2.5L | 0.73 Ohms ± 10% | 12.8 k/Ohms ± 15% |
| (1) Checked between ignition coil and ignitor assembly connector terminals No. 1 and No. 2 and terminals No. 2 and No. 4. (Scheme 2) (2) Check between ignition coil secondary terminals A and B, and terminals C and D. (Scheme 3) |
| (1) | Checked between ignition coil and ignitor assembly connector terminals No. 1 and No. 2 and terminals No. 2 and No. 4. (Scheme 2) |
| (2) | Check between ignition coil secondary terminals A and B, and terminals C and D. (Scheme 3) |
Scheme 2
Scheme 3
HIGH TENSION WIRE RESISTANCE
Note. Impreza 2.0L and Outback 3.0L use coil-on-plug system. No plug wires are used.
| Application | Ohms |
|---|
| No. 1 Spark Plug Cable | 5.6-10.6 |
| No. 2 Spark Plug Cable | 7.3-13.7 |
| No. 3 Spark Plug Cable | 5.9-11.1 |
| No. 4 Spark Plug Cable | 7.3-13.7 |
HIGH TENSION WIRE RESISTANCE - 2.5L
SPARK PLUGS
| Application | Champion | NGK |
|---|
| 2.0L | N/A | PFR6G |
| 2.5L | RC10YC4 | BKR5E-11 Or BKR6E-11 |
| 3.0L | N/A | PLFR6A-11 |
| Application | Gap - In. (mm) | (1) Torque - Ft. Lbs. (N.m) |
|---|
| 2.0L | 0.028-0.031 (0.7-0.8) | 15 (21) |
| 2.5L & 3.0L | 0.039-0.043 (1.0-1.1) | 15 (21) |
| (1) Torque should only be applied to new spark plugs without oil on the threads. In case threads are lubricated, torque should be reduced by approximately 1/3 of specified torque in order to avoid over stressing. |
| (1) | Torque should only be applied to new spark plugs without oil on the threads. In case threads are lubricated, torque should be reduced by approximately 1/3 of specified torque in order to avoid over stressing. |
SPARK PLUG SPECIFICATIONS
Firing Order
| Application | Firing Order |
|---|
| 2.0L & 2.5L | 1, 3, 2, 4 |
| 3.0L | 1, 6, 3, 2, 5, 4 |
Scheme 4
Scheme 4: 4-Cylinder Engine Configuration & Firing Order
Scheme 5
Scheme 5: 6-Cylinder Engine Configuration & Firing Order
Scheme 6
Scheme 6: Timing Marks (2.5L)
Timing Marks (2.0L & 3.0L)
Timing marks for 2.0L and 3.0L are not available from manufacturer.
IGNITION TIMING
| Application | (1) Auto. Trans. | (1) Man. Trans. |
|---|
| 2.0L | 12 @ 700 RPM | 12 @ 750 RPM |
| 2.5L | 15 @ 700 RPM | 10 @ 650 RPM |
| 3.0L (2) | 10 @ 600 RPM | (3) |
| (1) To improve stability, timing is controlled while engine is idling. Timing range is plus or minus 8 degrees (3 degrees on 2.0L). (2) Timing must be checked using a scan tool. (3) Manual transmission is not available with 3.0L engine. |
| (1) | To improve stability, timing is controlled while engine is idling. Timing range is plus or minus 8 degrees (3 degrees on 2.0L). |
| (2) | Timing must be checked using a scan tool. |
| (3) | Manual transmission is not available with 3.0L engine. |
IGNITION TIMING (DEGREES BTDC @ IDLE)
FUEL PUMP
| Application | Vacuum Line Connected psi (kg/cm 2 ) | Vacuum Line Disconnected psi (kg/cm 2 ) |
|---|
| All Models | (1) 30-34 (206-235) | (1) 41-46 (284-314) |
| (1) Fuel pressure readings will be 1-3 psi (0.1-0.2 kg/cm 2 ) higher at high altitudes. |
| (1) | Fuel pressure readings will be 1-3 psi (0.1-0.2 kg/cm 2 ) higher at high altitudes. |
INJECTOR RESISTANCE
| Application | Ohms |
|---|
| All Models | N/A |
INJECTOR RESISTANCE SPECIFICATIONS
IDLE SPEED
| Application | RPM |
|---|
| 2.0L |
| With A/C Off | 750 ± 100 |
| With A/C On |
| A/T | 825 ± 150 |
| M/T | 800 ± 150 |
| 2.5L |
| With A/C Off |
| A/T | 700 ± 100 |
| M/T | 650 ± 100 |
| With A/C On | 850 ± 100 |
| 3.0L |
| With A/C Off | 600 ± 50 |
| With A/C On | 700 ± 50 |
IDLE SPEED SPECIFICATIONS
FAST IDLE SPEED
Note. Fast idle speed is PCM controlled. Adjustment is not required.
THROTTLE POSITION (TP) SENSOR
Note. See ON-VEHICLE ADJUSTMENTS article for Throttle Position (TP) sensor adjustment procedure.
