Murano FWD V6-3.5L (VQ35) (2004)
Compression Check: Testing and Inspection
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure.
3. Disconnect fuel pump fuse to avoid fuel injection during measurement.
4. Remove engine cover.
5. Remove ignition coil and spark plug from each cylinder.
6. Connect engine tachometer (not required in use of CONSULT II).
7. Install compression tester with adapter onto spark plug hole.
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Use compression gauge whose picking up end inserted to spark plug hole is smaller then 20 mm (0.79 inch) in diameter. Otherwise, it may be
caught by cylinder head during removal.
8. With accelerator pedal fully depressed, turn ignition switch to "START".or cranking. When the gauge pointer stabilizes, read the compression
pressure and engine rpm. Perform these steps to check each cylinder.