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Home >> Ford >> 2017 >> Police Interceptor Utility 3.7L Eng VIN R >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine System - General Information >> Diagnosis And Testing >> Engine >> Compression Test >> Compression Pressure Limit Chart
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Compression Pressure Limit Chart

GFD121666Courtesy of FORD MOTOR COMPANY

If one or more cylinders reads low, squirt approximately one tablespoon of engine oil meeting Ford specification on top of the pistons in the low-reading cylinders. Repeat the compression pressure check on these cylinders.

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