ENGINE COMPRESSION
Check engine compression with engine at normal operating temperature at specified cranking speed, all spark plugs removed and throttle wide open.
| Application | Specification |
|---|
| Compression Ratio | 9.5:1 |
| Compression Pressure | 178 psi (12.5 kg/cm 2 ) |
| Minimum Compression Pressure | 128 psi (9.0 kg/cm 2 ) |
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm 2 ) |
COMPRESSION SPECIFICATIONS
VALVE CLEARANCE
| Application | (1) In. (mm) |
|---|
| Intake | .006-.010 (.15-.25) |
| Exhaust | .010-.014 (.25-.35) |
| (1) Adjust valve clearance with engine cold. |
| (1) | Adjust valve clearance with engine cold. |
VALVE CLEARANCE SPECIFICATIONS
IGNITION COIL
| Application | Primary | Secondary |
|---|
| Cold (1) | (2) | 9700-16,700 |
| Hot (3) | (2) | 12,400-19,600 |
| (1) Cold is with temperature of 14-122°F (-10-50°C). (2) Primary ignition coil resistance cannot be measured. (3) Hot is with temperature of 122-212°F (50-100°C). |
| (1) | Cold is with temperature of 14-122°F (-10-50°C). |
| (2) | Primary ignition coil resistance cannot be measured. |
| (3) | Hot is with temperature of 122-212°F (50-100°C). |
IGNITION COIL RESISTANCE - Ohms
DISTRIBUTOR SENSORS
| Application | In. (mm) |
|---|
| 2.7L | (1) |
| (1) Distributorless Ignition System (DIS) is used. |
| (1) | Distributorless Ignition System (DIS) is used. |
DISTRIBUTOR PICK-UP COIL AIR GAP
| Application | Ohms |
|---|
| Cold (1) | 835-1400 |
| Hot (2) | 1060-1645 |
| (1) Cold is with temperature of 14-122°F (-10-50°C). (2) Hot is with temperature of 122-212°F (50-100°C). |
| (1) | Cold is with temperature of 14-122°F (-10-50°C). |
| (2) | Hot is with temperature of 122-212°F (50-100°C). |
CAMSHAFT POSITION SENSOR RESISTANCE
| Application | Ohms |
|---|
| Cold (1) | 1630-2740 |
| Hot (2) | 2065-3225 |
| (1) Cold is with temperature of 14-122°F (-10-50°C). (2) Hot is with temperature of 122-212°F (50-100°C). |
| (1) | Cold is with temperature of 14-122°F (-10-50°C). |
| (2) | Hot is with temperature of 122-212°F (50-100°C). |
CRANKSHAFT POSITION SENSOR RESISTANCE
HIGH TENSION WIRE RESISTANCE
| Application | Maximum Ohms |
|---|
| 2.7L | 25,000 Per Wire |
HIGH TENSION WIRE RESISTANCE
SPARK PLUGS
| Application | NGK No. | Nippondenso No. |
|---|
| 2.7L | BKR5EYA | K16R-U |
| Application Type | Gap In. (mm) | Torque Ft. Lbs. (N.m) |
|---|
| 2.7L | .031 (.80) | 15 (20) |
SPARK PLUG SPECIFICATIONS
FIRING ORDER
| Application | Firing Order |
|---|
| 2.7L (1) | (2) (3) |
| (1) Cylinder No. 1 is located at timing belt or timing chain end of engine. Cylinder No. 4 is located at flywheel end of engine. (2) System uses a Distributorless Ignition System (DIS) with 2 ignition coils. Cylinders No. 1 and 4 use the same ignition coil. Cylinders No. 2 and 3 use the same ignition coil. (3) Firing order is not available from manufacturer at time of publication. |
| (1) | Cylinder No. 1 is located at timing belt or timing chain end of engine. Cylinder No. 4 is located at flywheel end of engine. |
| (2) | System uses a Distributorless Ignition System (DIS) with 2 ignition coils. Cylinders No. 1 and 4 use the same ignition coil. Cylinders No. 2 and 3 use the same ignition coil. |
| (3) | Firing order is not available from manufacturer at time of publication. |
IGNITION TIMING
| Application Type | (2) Base Timing | (3) ECM Controlled Timing |
|---|
| 2.7L | 3-7 | 7-18 |
| (1) Check with engine at normal operating temperature, transmission/transaxle in Neutral, parking brake applied, electric cooling fan off (if equipped) and A/C and all accessories off. (2) With Jumper Wire (SST 09843-18020) installed between terminals TE1 and E1 on data link connector No. 1. (3) With jumper wire removed from data link connector No. 1. |
| (1) | Check with engine at normal operating temperature, transmission/transaxle in Neutral, parking brake applied, electric cooling fan off (if equipped) and A/C and all accessories off. |
| (2) | With Jumper Wire (SST 09843-18020) installed between terminals TE1 and E1 on data link connector No. 1. |
| (3) | With jumper wire removed from data link connector No. 1. |
IGNITION TIMING (Degrees BTDC @ Idle) (1)
FUEL PUMP
Note. Fuel pump performance measures fuel pressure, not regulated fuel pressure.
| Application | Pressure - psi (kg/cm 2 ) |
|---|
| 2.7L | (1) 38-44 (2.7-3.1) |
| (1) Check fuel pressure with engine off and using scan tool connected to data link connector No. 3 with ignition on to activate fuel pump or by connecting battery voltage to terminals on electric fuel pump. |
| (1) | Check fuel pressure with engine off and using scan tool connected to data link connector No. 3 with ignition on to activate fuel pump or by connecting battery voltage to terminals on electric fuel pump. |
| Application | Specification |
|---|
| At Idle With Vacuum | 31-37 psi (2.2-2.6 kg/cm 2 ) |
| At Idle Without Vacuum | 38-44 psi (2.7-3.1 kg/cm 2 ) |
| Application | Ohms |
|---|
| 2.7L | .2-3.0 |
FUEL PUMP RESISTANCE - Ohms @ 68°F (20°C)
FUEL INJECTOR RESISTANCE
| Application | Ohms |
|---|
| 2.7L | 12.0-16.0 |
FUEL INJECTOR RESISTANCE - Ohms @ 68°F (20°C)
IDLE SPEED
| Application | RPM |
|---|
| 2.7L | 650-750 |
| (1) Check with engine at normal operating temperature, transmission/transaxle in Neutral, parking brake applied, air cleaner and all vacuum hoses installed, ignition timing properly set, electric cooling fan off (if equipped) and A/C and all accessories off. |
| (1) | Check with engine at normal operating temperature, transmission/transaxle in Neutral, parking brake applied, air cleaner and all vacuum hoses installed, ignition timing properly set, electric cooling fan off (if equipped) and A/C and all accessories off. |
IDLE SPEED SPECIFICATIONS (1)
THROTTLE OPENER
| Application | RPM |
|---|
| 2.7L | 1200-1500 |
| (1) Check with throttle opener vacuum hose disconnected and plugged, engine at normal operating temperature and electric cooling fan turned off (if equipped). |
| (1) | Check with throttle opener vacuum hose disconnected and plugged, engine at normal operating temperature and electric cooling fan turned off (if equipped). |
THROTTLE OPENER SPECIFICATIONS (1)
FUEL CUT
| Application | Fuel Return RPM |
|---|
| A/T | 1500 |
| M/T | 1400 |
| (1) Check with engine at normal operating temperature and A/C off. |
| (1) | Check with engine at normal operating temperature and A/C off. |
FUEL CUT SPECIFICATIONS (1)
THROTTLE POSITION (TP) SENSOR
| Application Type | Clearance In. (mm) | Terminals Tested | Ohmmeter Reading |
|---|
| 2.7L (1) | Fully Closed | VTA & E2 | 200-5700 |
| " | Fully Open | VTA & E2 | 2000-10,200 |
| " | " | VC & E2 | 2500-5900 |
| (1) Apply vacuum to throttle opener before checking TP sensor. |
| (1) | Apply vacuum to throttle opener before checking TP sensor. |
TP SENSOR RESISTANCE SPECIFICATIONS
