Mechanical Inspection: Compression
WARNING: This page is about a different car, the 1997 Plymouth Neon and 1997 Dodge Neon. However, it is still accessible from the selected car via links, so may be relevant.
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 | 170-225 (11.9-15.8) |
| Minimum Compression Pressure | 100 (7.0) |
| Maximum Variation Between Cylinders | 25% |