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Home >> Volvo >> 1997 >> S90 AW30-43 >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Controls - Basic Testing) >> Preliminary Inspection & Adjustments >> Mechanical Inspection >> Compression
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Mechanical Inspection: Compression

WARNING: This page is about a different car, the 1996 Volvo 960. 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 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 engine oiling system.
COMPRESSION SPECIFICATIONS

Application Specification
Compression Pressure (Minimum) 184 psi (13 kg/cm2 )