Engine Compression
WARNING: This page is about a different car, the 1994 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Check engine compression with engine at normal operating temperature, all spark plugs removed and throttle wide open.
COMPRESSION SPECIFICATIONS
| Application | Specification | |
|---|---|---|
| 2.5L | 9.2:1 | |
| 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) | |