Mechanical Inspection: Compression
WARNING: This page is about a different variant/trim than selected.
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 ) | ||||
|---|---|---|---|---|---|
| Normal Compression Pressure | (1) * | ||||
| Minimum Compression Pressure | 100 (7.0) | ||||
| Maximum Variation Between Cylinders | (2) * | ||||
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