Engine: Testing and Inspection
Engine Vacuum CheckThe engine vacuum that develops in the intake line is a good indicator of the condition of the engine.
Using SUZUKI Scan Tool
1) Warm up engine to normal operating temperature.
2) After warming up, place select lever to "P" range, and set parking brake and block drive wheels.
3) Stop engine and turn off all electric switches.
4) Connect SUZUKI scan tool to DLC (1) with ignition switch turned off.
Special Tool
(A): SUZUKI scan tool (SUZUKI-SDT)
5) Run engine at specified idle speed, and then select "Manifold Absolute Pressure" under "Data List" mode on scan tool.
Manifold absolute pressure should be lower than specification.
Manifold absolute pressure specification (at sea level)
42 kPa (0.42 kgf/cm2, 6.09 psi, 0.42 bar) or less at specified idle speed
Not using SUZUKI scan tool
1) Warm up engine to normal operating temperature.
2) After warming up, place select lever to "P" range, and set parking brake and block drive wheels.
3) Stop engine and turn off all electric switches.
4) Remove PCV hose (1) from breather pipe (2).
5) Connect special tool (Vacuum gauge) to PCV hose.
Special Tool
(A): 09915-67311
6) Close breather pipe using tape (3) or the like.
7) Run engine at specified idle speed and read vacuum gauge. Vacuum should be higher than specification.
Vacuum specification (at sea level)
-59 kPa (-0.60 kgf/cm2, -8.56 psi, -0.59 bar) or more at specified idle speed
8) Disconnect special tool (Vacuum gauge) from breather pipe.
9) Open breather pipe and connect PCV hose to breather pipe.