Engine Compression
Ensure battery is fully charged. Warm engine to normal operating temperature. Disconnect wire at ignition coil to prevent engine from starting. Check engine compression with all spark plugs removed and throttle wide open.
COMPRESSION SPECIFICATIONS
| Application | Specification | ||
|---|---|---|---|
| Compression Ratio | |||
| FWD Van | |||
| Caravan 2.4L | 9.4:1 | ||
| Voyager 2.4L | 9.4:1 | ||
| Normal Compression Pressure | |||
| FWD Van | |||
| Caravan 2.4L | 170-225 psi (1172-1551 kPa) | ||
| Voyager 2.4L | 170-225 psi (1172-1551 kPa) | ||
| Minimum Compression Pressure | |||
| FWD Van | |||
| Caravan 2.4L | 100 psi (690 kPa) | ||
| Maximum Variation Between Cylinders | |||
| FWD Van | |||
| Caravan 2.4L | 25 Percent | ||
| Voyager 2.4L | 25 Percent | ||