Nissan Rogue Service Manual: Compression pressure
CHECKING COMPRESSION PRESSURE
- Warm up the engine to full operating temperature.
- Release the fuel pressure. Refer to EC-144, "Work Procedure".
- Remove the ignition coil and spark plug from each cylinder. Refer
to EM-36, "Removal and Installation"
and EM-17, "Removal and Installation".
- Connect engine tachometer (not required in use of CONSULT).
- Disconnect the fuel injector harness connector to avoid any
residual fuel injection during the measurement.
- Install the compression tester with the adapter into the spark
plug hole.

- Use compression tester whose end (a) (rubber portion) is smaller
than 20 mm (0.79 in) in diameter. Otherwise, it may be caught by
cylinder head during removal.

- With the accelerator pedal fully depressed, turn the ignition switch to
the “START” position to crank over
the engine. When the gauge pointer stabilizes, read the compression pressure
and engine rpm. Perform
these steps to check each cylinder.

CAUTION:
Always use a fully charged battery to obtain specified engine cranking speed.
- If the engine speed is out of specified rpm range, check the
battery. Check engine speed again with a fully
charged battery.
- If compression pressure is below minimum value, check valve
clearances and parts associated with combustion
chamber (valve, valve seat, piston, piston ring, cylinder bore, cylinder
head, cylinder head gasket).
After the checking, measure compression pressure again.
- If some cylinders have low compression pressure, pour small amount
of engine oil into the spark plug hole of
the cylinder to re-check it for compression.
- If the added engine oil improves the compression, the piston rings
may be worn or damaged. Check the piston
rings and replace if necessary.
- If the compression pressure remains at low level despite the
addition of engine oil, the valves may be malfunctioning.
Check the valves for damage. Replace the valve or valve seat accordingly.
- If two adjacent cylinders have respectively low compression pressure and
their compression remains low
even after the addition of engine oil, the head gasket is leaking. In such a
case, replace the cylinder head
gasket.
- Install spark plug, ignition coil and harness connectors. Refer to
EM-17, "Removal and Installation".
Camshaft valve clearance
Perform this inspection as follows after removal, installation, or
replacement of the camshaft or any valve
parts, or if there are any unusual engine conditions due t ...
Other materials:
C1735 ignition signal
DTC Logic
NOTE:
The Signal Tech II Tool [- (J-50190)] can be used to perform the following
functions. Refer to the Signal Tech II
User Guide for additional information.
Activate and display TPMS sensor IDs
Display tire pressure reported by the TPMS sensor
Read TPMS DTC ...
Wiring diagram
ENGINE CONTROL SYSTEM
Wiring Diagram
...
Range
Principle
The range indicates the distance that can still be
covered with the current full tank of fuel.
General information
The estimated range available with the remaining
fuel is permanently displayed in the instrument
cluster.
With a low remaining range, a Check Control
message is briefly displ ...
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