Grand Vitara 2WD V6-2.7L (2006)
Compression Check: Testing and Inspection
Compression Check
Check compression pressure on all 6 cylinders as follows:
1) Warm up engine.
2) Stop engine after warming up.
3) Remove surge tank cover and disconnect ignition coil harness couplers.
4) Remove all ignition coils (1) and spark plugs (2).
5) Disconnect fuel injector wire harness at connector.
6) Install special tool (Compression gauge) into spark plug hole.
7) Disengage clutch (to lighten starting load on engine) for M/T vehicle, and depress accelerator pedal all the way to make throttle fully open.
8) Crank engine with fully charged battery, and read the highest pressure on compression gauge.
