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Home >> Ford >> 2003 >> Thunderbird >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine System-General Information >> Diagnosis And Testing >> Engine >> Compression Test - Compression Gauge Check >> Compression Test - Test Results >> Compression Pressure Limit Chart

Compression Pressure Limit Chart

Fig 1: Compression Pressure Limit Chart
G01527821Courtesy of FORD MOTOR CO.

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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