Mechanical Inspection: Compression
Check engine mechanical condition with a compression gauge, vacuum gauge, or an engine analyzer. See engine analyzer manual for specific instructions.
WARNING:
DO NOT
use ignition switch during compression tests on fuel injected vehicles. Use a remote starter to crank engine. Fuel injectors on many models are triggered by ignition switch during cranking mode, which can create a fire hazard or contaminate the engine's oiling system.
COMPRESSION SPECIFICATIONS
| Application (1) | psi (kg/cm2 ) | ||||
|---|---|---|---|---|---|
| Compression Pressure | |||||
| 3.0L (VIN H) | |||||
| Diamante | 196 (13.8) | ||||
| 3.0L (VIN J) | 185 (13.0) | ||||
| 3.0L (VIN K) | 156 (10.9) | ||||
| Maximum Variation Between Cylinders | 14 (1.0) | ||||
|
|||||