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 | 8.9:1 |
| Compression Pressure | (1) |
| Minimum Compression Pressure | 100 psi (690 kPa) |
| Maximum Variation Between Cylinders | 25 Percent |
| (1) Information not available at time of publication. |
| (1) | Information not available at time of publication. |
COMPRESSION SPECIFICATIONS
VALVE CLEARANCE
Engine is equipped with hydraulic lifters. No adjustments are required.
IGNITION COIL
| Application | Primary | Secondary |
|---|
| 3.8L | .45-.65 | 7000-15,800 |
IGNITION COIL RESISTANCE - Ohms @ 70-80°F (21-27°C)
HIGH TENSION WIRE RESISTANCE
| Application | Ohms |
|---|
| Cylinder No. 1 | 18,500 |
| Cylinder No. 2 | 15,500 |
| Cylinder No. 3 | 20,400 |
| Cylinder No. 4 | 21,200 |
| Cylinder No. 5 | 27,700 |
| Cylinder No. 6 | 26,700 |
| Ignition Coil Wire | 11,100 |
| (1) Maximum wire resistance is listed according to high tension wire application. For cylinder identification, see FIRING ORDER . |
| (1) | Maximum wire resistance is listed according to high tension wire application. For cylinder identification, see FIRING ORDER . |
HIGH TENSION WIRE RESISTANCE (1)
SPARK PLUGS (TYPE)
| Application | Champion No. |
|---|
| 3.8L | RN14PMP5 |
| (1) Check spark plug application on underhood vehicle emission control label. If application differs from application listed, use application on underhood vehicle emission control label. |
| (1) | Check spark plug application on underhood vehicle emission control label. If application differs from application listed, use application on underhood vehicle emission control label. |
IGNITION TIMING
Note. Ignition timing is controlled by Powertrain Control Module (PCM). Ignition timing is non-adjustable. DO NOT attempt to adjust ignition timing.
FUEL PUMP
| Application | Pressure psi (kPa) | Min. Vol. In One Minute Pts. (L) |
|---|
| Caravan & Voyager | (1) 49 (338) | (2) |
| (1) Manufacturer lists fuel pressure with engine off, ignition on and using scan tool to activate fuel pump. (2) Information not available at time of publication. |
| (1) | Manufacturer lists fuel pressure with engine off, ignition on and using scan tool to activate fuel pump. |
| (2) | Information not available at time of publication. |
INJECTOR RESISTANCE
| Application | Ohms @ 68°F (20°C) |
|---|
| 3.8L | 10-16 |
IDLE SPEED & MIXTURE
Note. Idle speed and mixture are controlled by Powertrain Control Module (PCM). No adjustment is required.
| Application | RPM |
|---|
| 3.8L | (1) |
| (1) Idle speed is nonadjustable. |
| (1) | Idle speed is nonadjustable. |
IDLE SPEED SPECIFICATIONS
THROTTLE BODY MINIMUM AIRFLOW IDLE SPEED
| Application | RPM |
|---|
| 1000 Miles Or Less | (1) 525-875 |
| More Than 1000 Miles | (1) 575-875 |
| (1) Spec listed with Air Metering Fitting (6457) installed. |
| (1) | Spec listed with Air Metering Fitting (6457) installed. |
THROTTLE BODY MINIMUM AIRFLOW IDLE SPEED SPECIFICATIONS
