Engine Compression
WARNING: This page is about a different car, the 2002 Jeep Wrangler, 2002 Jeep Liberty, and 2002 Jeep Grand 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 | psi (kg/cm2 ) | |||||
|---|---|---|---|---|---|---|
| Normal Compression Pressure | ||||||
| 2.4L | (1) | |||||
| 2.5L & 4.0L | 120-150 (8.3-10.5) | |||||
| 3.7L | (2) | |||||
| 4.7L | 140-180 (9.8-12.7) | |||||
| Maximum Variation Between Cylinders | ||||||
| 2.4L | 25 (1.6) | |||||
| 2.5L & 4.0L | 30 (2.1) | |||||
| 3.7L | (2) | |||||
| 4.7L | (2) | |||||
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