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 | psi (kg/cm2 ) | |
|---|---|---|
| Compression Pressure | ||
| 2.4L (VIN W) | 171 (12.0) | |
| 3.0L (VIN S) | 171 (12.0 ) | |
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm2 ) | |