ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Compression Check|Specifications|Page 2153 > < Vehicle - Towing Behind RVs Guidelines|Page 2147
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Compression Check: Specifications

Compression pressures are considered within specification if they are at least 350 psi and the lowest reading cylinder is within 50 psi of the highest.

NOTE:  Variations exceeding specifications indicate an improperly seated valve or worn/broken piston rings.
 

Compression Check|Specifications|Page 2153 > < Vehicle - Towing Behind RVs Guidelines|Page 2147