Engine Compression
Check engine compression at normal operating temperature with all spark plugs removed. To prevent damage to catalytic converter, make tests quickly and only when necessary.
NOTE:
Compression pressure is not specified by manufacturer.
COMPRESSION RATIO
| Application | Specification | |
|---|---|---|
| 900 Series | ||
| 2.0L | 9.2:1 | |
| 2.3L | 10.5:1 | |
| 9000 Series | 9.25:1 | |