Tucson AWD L4-2.4L (2010)
E. If the cylinder compression in 1 or more cylinders is low, pour a small amount of engine oil into the cylinder through the spark plug hole and
repeat steps (a) through (c) 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. Reinstall spark plugs.
7. Install ignition coils.
8. Connect the injector connectors and ignition coil connectors.
