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Home >> Jeep >> 1994 >> Grand Cherokee Laredo, 4.0 S, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 40 (Engine Controls - Specifications - 5.9L Diesel) >> Mechanical Checks >> Engine Compression

Engine Compression

WARNING: This page is about a different car, the 1994 Dodge Pickup and 1994 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Check engine compression with engine at normal operating temperature at specified cranking speed and throttle wide open.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 17.5:1
Minimum Compression Pressure (1)
Maximum Compression Variation Between Cylinders (2)
(1) Minimum compression pressure is not available from manufacturer at time of publication.
(2) Maximum compression variation between cylinders is not available from manufacturer at time of publication.