Engine Vacuum Check
Engine Vacuum CheckThe engine vacuum that develops in the intake line is a good indicator of the condition of the engine. The vacuum checking procedure is as follows:
1. Warm up engine to normal operating temperature and make sure that engine idle speed is within specification.
NOTE: After warming up engine, place transmission gear shift [ever in "Neutral" (shift selector lever to "P" range for A/T model), and set parking brake and block drive wheels.
2. Stop engine and disconnect vacuum hose (2) from intake manifold (1).
3. Connect special tools (vacuum gauge and hose joint) to vacuum hose and intake manifold.
Special tool
(A): 09915-67310
(B): 09918-08210
SUZUKI GENUINE PARTS
(C): Hose 09343-03087
(D): 3-way joint 09367-04002
4. Start engine and run engine at specified idle speed, and read vacuum gauge. Vacuum should be within specification.
Vacuum specification (at sea level) 52.6 - 65.8 kPa (40 - 50 cm Hg, 15.7 - 19.7 inch Hg) at specified idle speed
5. After checking, remove vacuum gauge and hose joint.
6. Connect vacuum hose to intake manifold.