Mechanical Inspection: Compression
WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. However, it is still accessible from the selected car via links, so may be relevant.
Check engine mechanical condition using a compression gauge, vacuum gauge, or an engine analyzer capable of performing a relative compression test. See engine analyzer instruction manual for availability and description of relative compression feature.
Check engine compression with engine at normal operating temperature and specified cranking speed, all spark plugs removed, and throttle wide open.
COMPRESSION SPECIFICATIONS
| Application | Specification | ||
|---|---|---|---|
| Compression Ratio | 8.85:1 | ||
| Minimum Compression Pressure | (1) 178 psi (1227 kPa) at 250 RPM | ||
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