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Home >> Jeep >> 1994 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> External Pages >> Different car >> Section 72 (Engine Controls - Specifications - 3.8L) >> Mechanical Checks >> Engine Compression

Engine Compression

WARNING: This page is about a different car, the 1994 Plymouth Voyager, 1994 Plymouth Grand Voyager, 1994 Dodge Grand Caravan, 1994 Dodge Caravan, and 1994 Chrysler Town & Country. 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, all spark plugs removed and throttle wide open.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 8.9:1
Minimum Compression Pressure 100 psi (690 kPa) at 130 RPM
Maximum Compression Variation Between Cylinders 25 Percent