B4000 V6-4.0L SOHC (2005)
Compression Check: Specifications
Compression Test - Results
The indicated compression pressures are considered within specification if the lowest reading cylinder is at least 75 percent of the highest reading. The
following Compression Pressure Limit Chart shows acceptable pressure ranges. Use the highest compression reading obtained from the compression test
and verify that the lowest compression reading is within the range shown in the chart. See the Compression Pressure Limit Chart.
Compressor Pressure Limit Chart Part 1
Compressor Pressure Limit Chart Part 2
Compressor Pressure Limit Chart
If one or more cylinders reads low, squirt approximately one tablespoon of clean 10W40 engine oil on top of the piston(s) in the low-reading cylinder(s).
Repeat the compression pressure check on these cylinders.
