Engine Compression
Check engine compression with engine at normal operating temperature, all spark plugs removed and throttle wide open.
COMPRESSION SPECIFICATIONS
| Application | Specification | |
|---|---|---|
| Compression Ratio | ||
| 3.0L (VIN H) | 8.9:1 | |
| 3.5L (VIN M) | 9.5:1 | |
| Compression Pressure | ||
| 3.0L (VIN H) | 171 psi (12.0 kg/cm2 ) | |
| 3.5L (VIN M) | 185 psi (13.0 kg/cm2 ) | |
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm2 ) | |