INTRODUCTION
Use this article to quickly find specifications related to servicing and on-vehicle adjustments. This article provides a quick-reference when you are familiar with an adjustment procedure and only need a specification.
| Application | Amp Hr. Rating |
|---|
| ES250 | 48 |
| LS400 | 64 |
FLUID CAPACITIES - ES250
| Application | Qts. (L) |
|---|
| Automatic Transaxle (Dexron-II) |
| Dry Fill | 6.2 (5.9) |
| Drain & Refill | 2.6 (2.5) |
| Automatic Transaxle Differential (Dexron-II) | 1.4 (1.3) |
| Crankcase (Includes Filter) | 4.1 (3.9) |
| Cooling System (Includes Heater) | 10 (9.5) |
| Manual Transaxle (SAE 80W-90/API GL-4 or GL-5) | 4.4 (4.2) |
FLUID CAPACITIES - LS400
| Application | Qts. (L) |
|---|
| Automatic Transmission (T-II ATF or Equivalent) |
| Dry Fill | 7.6 (7.2) |
| Drain & Refill | 2.0 (1.9) |
| Cooling System (Includes Heater) | 11.2 (10.6) |
| Crankcase (Includes Filter) | 5.3 (5.0) |
| Differential (SAE 80W-90/API GL-5) | 1.4 (1.3) |
REPLACEMENT INTERVALS
| Component | Miles |
|---|
| Air Filter | 30,000 |
| Cam Timing Belt | 60,000 |
| Coolant | 45,000 |
| Fuel Filter | 30,000 |
| Oil & Filter | (1) 7500 |
| Spark Plugs | 60,000 |
| (1) Every 3750 miles for severe service. |
| (1) | Every 3750 miles for severe service. |
DRIVE BELT ADJUSTMENT - ES250
| Application | (1) Lbs. (kg) |
|---|
| Alternator | (2) 95-135 (43-61) |
| Power Steering | (2) 60-100 (27-45) |
| (1) Using Borroughs Tension Gauge. (2) For belt that has been used on running engine for 5 minutes or more. |
| (1) | Using Borroughs Tension Gauge. |
| (2) | For belt that has been used on running engine for 5 minutes or more. |
DRIVE BELT ADJUSTMENT - ES250
DRIVE BELT ADJUSTMENT - LS400
| Application | Lbs. (kg) |
|---|
| Alternator | Automatic |
DRIVE BELT ADJUSTMENT - LS400
ENGINE COMPRESSION
| Application | Specification |
|---|
| Compression Ratio |
| ES250 | 9.0:1 |
| LS400 | 10.0:1 |
| Compression Pressure | 178 psi (12.5 kg/cm 2 ) |
| Minimum Compression Pressure | 142 psi (10 kg/cm 2 ) |
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm 2 ) |
COMPRESSION SPECIFICATIONS
VALVE CLEARANCE SPECIFICATIONS - ES250
| Application | (1) In. (mm) |
|---|
| Intake | .005-.009 (.13-.23) |
| Exhaust | .011-.015 (.28-.38) |
| (1) Adjust valves with engine cold. |
| (1) | Adjust valves with engine cold. |
VALVE CLEARANCE SPECIFICATIONS - ES250
VALVE CLEARANCE SPECIFICATIONS - LS400
| Application | (1) In. (mm) |
|---|
| Intake | .006-.010 (.15-.25) |
| Exhaust | .010-.014 (.25-.36) |
| (1) Adjust valves with engine cold. |
| (1) | Adjust valves with engine cold. |
VALVE CLEARANCE SPECIFICATIONS - LS400
VALVE ARRANGEMENT
- Intake Manifold Side - All intake.
- Exhaust Manifold Side - All exhaust.
IGNITION COIL RESISTANCE
| Application | Primary | Secondary |
|---|
| ES250 & LS400 (1) | .41-.50 | 10,200-13,800 |
| (1) LS400 has 2 ignition coils. |
| (1) | LS400 has 2 ignition coils. |
IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)
DISTRIBUTOR PICK-UP COIL AIR GAP - ES250
| Application | In. (mm) |
|---|
| ES250 | .008 (.2) |
DISTRIBUTOR PICK-UP COIL AIR GAP - ES250
DISTRIBUTOR PICK-UP COIL RESISTANCE - ES250
| Application | Ohms |
|---|
| ES250 | 140-180 |
DISTRIBUTOR PICK-UP COIL RESISTANCE - ES250
CAM SENSOR & SPEED SENSOR RESISTANCE - LS400
| Application | Ohms |
|---|
| No. 1 & No. 2 Cam Sensors | 950-1250 |
| Engine Speed Sensor | 950-1250 |
CAM SENSOR & SPEED SENSOR RESISTANCE - LS400
HIGH TENSION WIRE RESISTANCE
| Application | Ohms |
|---|
| ES250 & LS400 | 25,000 Maximum |
HIGH TENSION WIRE RESISTANCE
SPARK PLUGS
| Application | NGK |
|---|
| ES250 & LS400 | BCPR6EP-11 |
| Application | Gap In. (mm) | Torque Ft. Lbs. (N.m) |
|---|
| ES250 & LS400 | .043 (1.1) | 13 (17) |
SPARK PLUG SPECIFICATIONS
Firing Order & Timing Marks - ES250. Scheme 1
Scheme 1: Firing Order & Timing Marks - ES250
Firing Order & Timing Marks - LS400. Scheme 2
Scheme 2: Firing Order & Timing Marks - LS400
IGNITION TIMING
| Application | Automatic Transmission | Manual Transmission |
|---|
| ES250 | (1) 10 @ 650-750 | (1) 10 @ 650-750 |
| LS400 | (1) 10 @ 650-750 | N/A |
| (1) With jumper wire installed between TE1 and E1 timing check terminals. |
| (1) | With jumper wire installed between TE1 and E1 timing check terminals. |
IGNITION TIMING (Degrees BTDC @ RPM)
FUEL PUMP
Note. Fuel pump performance measures fuel pressure and volume availability, not regulated fuel pressure.
| Application | Pressure psi (kg/cm 2 ) | Min. Vol. in 30 sec. Pts. (L) |
|---|
| ES250 & LS400 | 38-44 (2.7-3.1) | (1) |
| (1) Information not available from manufacturer |
| (1) | Information not available from manufacturer |
REGULATED FUEL PRESSURE
| Application | At Idle w/Vacuum psi (kg/cm 2 ) | At Idle w/o Vacuum psi (kg/cm 2 ) |
|---|
| ES250 | 33-37 (2.3-2.6) | 38-44 (2.7-3.1) |
| LS400 | 28-34 (2.0-2.4) | 38-44 (2.7-3.1) |
INJECTOR RESISTANCE
| Application | Ohms |
|---|
| ES250 | 13.8 |
| LS400 | 13.4-14.2 |
INJECTOR RESISTANCE SPECIFICATIONS - Ohms @ 68°F (20°C)
IDLE SPEED & MIXTURE
| Application | Idle RPM | CO Level |
|---|
| ES250 |
| Automatic Transmission | 650-750 | (1) |
| Manual Transmission | 650-750 | (1) |
| LS400 | 650-750 | (1) |
| (1) Information not available from manufacturer |
| (1) | Information not available from manufacturer |
FAST IDLE SPEED
Note. Fast idle speed on ES250 & LS400 models is controlled by ECU by way of IAC.
THROTTLE POSITION SENSOR
| Clearance Between Lever & Stop Screw | Ohmmeter Reading At Terminal IDL & E1 or E2 |
|---|
| ES250 |
| .012" (.30 mm) | Continuity |
| .028" (.71 mm) | No Continuity |
| LS400 |
| .016" (.40 mm) | Continuity |
| .034" (.86 mm) | No Continuity |
THROTTLE POSITION SENSOR ADJUSTMENTS
