Compression Pressure Check
- Warm up the engine to normal operating temperature.
- Disconnect the spark plug cables. And remove the spark plugs and fuel pump relay.
- Crank the engine to remove any foreign material in the cylinders.
- Put compression pressure gauge into spark plug hole.
- Check compression pressure at each cylinder.
Specification : 1323 kPa (13.5 kg/cm2% , 192 psi)
- Is compression pressure for each cylinder displayed within specifications?
YES
- Go to "TIMING MARK CHECK " procedure.
NO
- Add a small amount of oil through the spark plug hole, and repeat above steps.
If the addition of oil causes the compression to rise, the cause is a worn or damaged piston ring or cylinder inner surface.
- If the compression remains the same, the cause is a burnt or defective valve seat, or pressure is leaking from the gasket.
Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.