Engine Compression
Check engine compression with engine at normal operating temperature, all spark plugs removed and throttle wide open.
COMPRESSION SPECIFICATIONS
| Application | Specification | |
|---|---|---|
| 2.5L | 9.1:1 | |
| 4.0L | 8.7:1 | |
| Compression Pressure | ||
| Normal | 120-150 psi (827-1034 kPa) | |
| Minimum | 100 psi (689 kPa) | |
| Maximum Variation Between Cylinders | 30 psi (207 kPa) | |