Hyundai Creta: General Information / Compression test
| Compession Pressure Inspection |
| • |
If the there is lack of power, excessive oil consumption or
poor fuel economy, measure the compression pressure.
|
|
| 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.
|
| 3. |
Remove the ignition coil.
(Refer to Engine Electrical System - "Ignition Coil")
|
| 4. |
Remove the spark plugs.
Using a 16mm plug wrench, remove the 4 spark plugs.
(Refer to Engine Electrical System - "Spark Plug")
|
| 5. |
Check the cylinder compression pressure.
| (1) |
Insert a compression gauge into the spark plug hole.
|
| (2) |
Set the throttle plate in the wide-open position.
|
| (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.
|
|
|
Compression pressure
Standard : 1225.83 kPa (12.5 kg/cm², 177.79 psi) (200~250
rpm)
Minimum : 1078.73 kPa (11.0 kg/cm², 156.46 psi)
Difference between each cylinder :
98 kPa (1.0 kg/cm², 14 psi) 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.
| •
|
If adding oil helps the compression, it is likely that
the piston rings and/or cylinder bore are worn or damaged.
|
| •
|
If pressure stays low, a valve may be sticking or seating
is improper, or there may be leakage past the gasket.
|
|
|
| 6. |
Install the spark plugs.
(Refer to Engine Electrical System - "Spark Plug")
|
| 7. |
Install the ignition coil.
(Refer to Engine Electrical System - "Ignition Coi")
|
| 8. |
Install the engine cover.
|
Special Service Tools
Tool Name / Number
Illustration
Description
Crankshaft front oil seal installer
09455-21200
...
Troubleshooting
Symptom
Suspect area
Remedy
Engine misfire with abnormal internal lower engine noises.
Loose or improp ...
Other information:
Hyundai Creta GS 2014-2025 Owners Manual: Vehicle identification number (VIN)
The vehicle identification number
(VIN) is the number used in registering
your car and in all legal matters
pertaining to its ownership, etc.
The number is punched on the floor
under the front right seat. To check
the number, pull out the slit part of
carpet.
The VIN is also on a p ...
Hyundai Creta GS 2014-2025 Service Manual: Description and operation
Description
Ignition timing is controlled by the electronic control ignition timing system.
The standard reference ignition timing data for the engine operating conditions
are pre-pro grammed in the memory of the ECM (Engine Control Module).
The engine operating conditio ...
Special service tools
Troubleshooting