Engine Compression
Check compression pressure with engine at normal operating temperature, all spark plugs removed, throttle and choke valves wide open and engine at cranking speed.
NOTE:
Specifications for compression pressure and cylinder pressure variation is not available from manufacturer.
COMPRESSION SPECIFICATIONS
| Application | Compression Ratio |
|---|---|
| 4.0L | 8. 8:1 |
| 4.2L | 9. 2:1 |