Engine Compression
Check engine compression with engine at normal operating temperature at specified cranking speed, all spark plugs removed and throttle wide open. The DME master relay and/or fuel pump relay MUST be pulled out for compression test. See ADJUSTMENTS article for additional information.
COMPRESSION SPECIFICATIONS
| Application | Specification | ||||
|---|---|---|---|---|---|
| Compression Ratio (1) | |||||
| 4-Cylinder | 10.0:1 | ||||
| 6-Cylinder | |||||
| 2.3L & 3.2L | 10.5:1 | ||||
| 2.8L | 10.2:1 | ||||
| V8 | 10.0:1 | ||||
| Compression Pressure | |||||
| All Models | 142-156 psi (10-11 kg/cm2 ) | ||||
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