If the there is lack of power, excessive oil consumption or poor
fuel economy, measure the compression pressure.
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1. |
Make sure the oil in the crankcase is of the correct viscosity
and at the correct level and that the battery is correctly charged.
Operate the vehicle until the engine is at normal operating temperature.
Turn the ignition switch to the OFF position.
|
2. |
Remove the engine cover.
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3. |
Disconnect the injector extension connector (A) and the ignition
coil connectors (B).

|
4. |
Remove the ignition coils (A).

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5. |
Remove the spark plugs.
Using a 16mm plug wrench, remove the 4 spark plugs.
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6. |
Check the cylinder compression pressure.
(1) |
Insert a compression gauge into the spark plug hole.

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(2) |
Set the throttle plate in the wide-open position.
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(3) |
While cranking the engine, measure the compression pressure.
Always use a fully charged battery to obtain engine
speed of 250rpm or more.
|
|
(4) |
Repeat step 1) through 3) for each cylinder.
This measurement must be done in as short time
as possible.
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Compression pressure
Standard : 1225.83kPa (12.5kg/cm², 177.79psi)
(200~250 rpm)
Minimum : 1078.73kPa (11.0kg/cm², 156.46psi)
Difference between each cylinder :
98kPa (1.0kg/cm², 14psi) or less
|
|
(5) |
If the cylinder compression in one or more cylinders is
low, pour a small amount of engine oil into the cylinder through
the spark plug hole and repeat step 1) through 3) for cylinders
with low compression.
A. |
If adding oil helps the compression, it is likely
that the piston rings and/or cylinder bore are worn
or damaged.
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B. |
If pressure stays low, a valve may be sticking
or seating is improper, or there may be leakage past
the gasket.
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|
|
7. |
Install the spark plugs.
Tightening torque :
14.7 ~ 24.5 N.m (1.5 ~ 2.5 kgf.m, 10.8 ~ 18.0 lb-ft)
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|
8. |
Install the ignition coil.
Tightening torque :
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
|
|
9. |
Connect the injector extension connector and the ignition coil
connectors.
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10. |
Install the engine cover.
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Tool Name / Number
Illustration
Description
Crankshaft front oil seal installer
09455-21200
Valve stem oil seal installer
0 ...
Symptom
Suspect area
Remedy
Engine misfire with abnormal internal lower engine
noises.
Loose or improperly installed engine flywheel.
Repair or repl ...
See also:
Trouble Symptom Charts
Trouble Symptom 1
Trouble Symptom 2
Trouble symptom
Probable cause
Remedy
The set vehicle speed varies greatly upward or
downward
"Su ...
Front Driveshaft Component
1. Driveshaft (LH)
2. Circlip
3. Driveshaft (RH)
...
Additional safety precautions
Never let passengers ride in the cargo area or on top of a foldeddown back
seat. All occupants should sit upright, fully back in their seats with their
seat belts on and their feet on the flo ...