Subaru Crosstrek manuals

Subaru Crosstrek Service Manual: Compression Inspection

MECHANICAL(H4DO) > Compression

INSPECTION

CAUTION:

After warming-up, engine becomes very hot. Be careful not to burn yourself during measurement.

1. Turn the ignition switch to OFF.

2. After warming-up the engine, turn the ignition switch to OFF.

3. Make sure that the battery is fully charged.

4. Check the starter motor for satisfactory performance and operation.

5. Remove the fuse of fuel pump from main fuse box.

6. Start the engine and run it until it stalls.

7. After the engine stalls, crank it for five more seconds.

8. Turn the ignition switch to OFF.

9. Remove all spark plugs. Spark Plug > REMOVAL">

10. Install the compression gauge to the spark plug hole.

NOTE:

When using a screw-in type compression gauge, the screw should be less than 25 mm (0.98 in) long.

11. Connect the battery ground terminal. NOTE">

12. Turn the ignition switch to ON.

13. Depress the accelerator pedal to full throttle.

14. Crank the engine by starter motor and read the value when the needle of the compression gauge becomes stable.

NOTE:

Perform at least two measurements per cylinder, and make sure that the values are correct.

If the compression pressure is out of standard, check or adjust the pistons, valves and cylinders.

Compression pressure (at 200 — 300 r/min):

Standard

1,050 — 1,400 kPa (11 — 14 kg/cm2, 152 — 203 psi)

Difference between cylinders

100 kPa (1 kg/cm2, 14 psi) or less

15. After inspection, install the related parts in the reverse order of removal.

Installation
MECHANICAL(H4DO) > V-beltINSTALLATION1. V-BELTInstall in the reverse order of removal.CAUTION:• When reusing the V-belt, wipe off dust and water with cloth.• Do not use the V-belt if th ...

Connecting rod Specification
MECHANICAL(H4DO) > Connecting RodSPECIFICATIONRefer to “Cylinder Block” for removal and installation procedures of connecting rod. Cylinder Block > REMOVAL"> Cylinder Block ...

Other materials:

Airbag warning light illumination pattern Inspection
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS) > Airbag Warning Light Illumination PatternINSPECTIONTurn the ignition switch to ON, and confirm that the airbag warning light remains on for approx. 6 seconds then turns off afterwards.(1)Airbag warning light(2)Approx. 6 seconds(3)Ignition switch ON ...

Tripped sensor identification
The security indicator light flashes when the alarm system has been triggered. Also, the number of flashes indicates the location of unauthorized intrusion or the severity of impact on the vehicle. When the ignition switch is turned to the "ON" position, the indicator light will light for ...

Dtc p0685 ecm/pcm power relay control circuit/open
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0685 ECM/PCM POWER RELAY CONTROL CIRCUIT/OPENDTC DETECTING CONDITION:Detected when two consecutive driving cycles with fault occur.CAUTION:After servicing or replacing faulty parts, perform Clear Memory Mode ...

© 2016-2025 Copyright www.sucross.com