- Idle speed is controlled by an idle speed control valve. Ensure engine is at normal operating temperature, valve clearance is correct and all electrical accessories are off.
- Connect dwell/tachometer to engine. Ensure idle speed is within specification. See «IDLE SPEED & CO LEVEL SPECIFICATIONS»(ref-10047-S22945984012000110700000) table. If idle speed and CO level are not within specification, check idle speed control valve or intake manifold for air leaks.
| Application | Idle RPM | (1) CO Level % |
|---|
| 4-Cylinder | 810-890 | .5-.7 |
| 6-Cylinder | 660-740 | .2-1.2 |
| V8 | 750-850 | .2-1.2 |
| (1) Measured at exhaust manifold. See IDLE MIXTURE & CO LEVEL for additional information. |
| (1) | Measured at exhaust manifold. See IDLE MIXTURE & CO LEVEL for additional information. |
IDLE SPEED & CO LEVEL SPECIFICATIONS
