PROCEDURE
INSPECT ENGINE COOLANT
INSPECT ENGINE OIL
INSPECT BATTERY
INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY
Remove the air cleaner cap sub-assembly.
Remove the air filter element sub-assembly.
Visually check that the air cleaner filter element sub-assembly is not excessively damaged or oily. If necessary, replace the air cleaner filter element sub-assembly.
Tech Tips
If there is any foreign matter or clogs in the air cleaner filter element sub-assembly, clean it with compressed air.
If any foreign matter or clogs remain even after cleaning the air cleaner filter element sub-assembly with compressed air, replace it.
Install the air cleaner filter element sub-assembly.
Install the air cleaner cap sub-assembly.
INSPECT V-RIBBED BELT
INSPECT ENGINE SPEED
Note
Turn all the electrical systems and the A/C off.
Inspect the engine idle speed with the cooling fan off.
When checking the idle speed, the transaxle should be in neutral.
Warm up and stop the engine.
When using the GTS:
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Data List / Engine Speed.
| Tester Display |
|---|
| Engine Speed |
Inspect the engine idle speed.
| Standard Idle Speed |
|---|
| 720 to 820 rpm |
Fully depress the accelerator pedal.
Inspect the maximum engine speed.
| Maximum Speed |
|---|
| 5150 to 5250 rpm |
Turn the ignition switch off.
Disconnect the GTS from the DLC3.
When not using the GTS:
Using SST, connect a tachometer probe to terminal 9 (TAC) of the DLC3.
Note
Be sure to connect the tachometer to the correct terminal. Connecting the wrong terminals can cause damage.
Turn the ignition switch to ON.
Start the engine.
Inspect the engine idle speed.
| Standard Idle Speed |
|---|
| 720 to 820 rpm |
Fully depress the accelerator pedal.
Inspect the maximum engine speed.
| Maximum Speed |
|---|
| 5150 to 5250 rpm |
Turn the ignition switch off.
Disconnect the tachometer probe from terminal 9 (TAC) of the DLC3.
INSPECT COMPRESSION
Warm up and stop the engine.
Disconnect the 4 connectors from the 4 injector assemblies.
Remove the 4 glow plug assemblies.
Note
In order to avoid shorting the circuit of the wire harness connected to the glow plug No. 1 connector, wind vinyl tape around the wire harness terminal portion.
Remove the bolt and separate the No. 3 engine cover bracket.
Connect the cable to the negative (-) battery terminal.
Crank the engine to remove foreign matter before measuring the compression.
| *a | SST (Attachment) |
Install the SST (attachment) into the glow plug assembly hole.
| *a | SST (Compression Gauge) |
Connect a SST (compression gauge) to the SST (attachment).
While cranking the engine, measure the compression pressure.
| Compression Pressure |
|---|
| 2300 kPa (23.5 kgf/cm2, 334 psi) |
| Minimum Pressure |
|---|
| 2050 kPa (20.9 kgf/cm2, 297psi) |
| Difference Between Each Cylinder |
|---|
| 500 kPa (5.1 kgf/cm2, 73 psi) or less |
Note
Use a fully-charged battery so that the engine speed can be increased to 250 rpm or more.
Inspect the other cylinders in the same way.
Measure the compression pressure in as short a time as possible.
If the cylinder compression is low, pour a small amount of engine oil into the cylinder through the glow plug assembly hole, and then inspect it again.
Tech Tips
If adding oil increases the compression, the piston rings and/or cylinder bore may be worn or damaged.
If the compression pressure stays low, a valve may be stuck or seated improperly, or there may be leaks in the cylinder head gasket.
Remove the SST (compression gauge and attachment).
Install the No. 3 engine cover bracket with the bolt.
Install the 4 glow plug assemblies.
Connect the 4 connectors to the 4 injector assemblies.