Engine: Testing and Inspection

ENGINE VACUUM CHECK
The 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 lever 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 from fuel pressure regulator.
3. Connect special tools (vacuum gauge and hose joint) to vacuum hose of intake manifold side.

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: 52.6 - 65.8 kPa (sea level) (15.7 - 19.7 inch Hg) at 800 r/min

5. After checking, remove vacuum gauge and hose joint.
6. Connect vacuum hose to fuel pressure regulator.