Idle Speed & Mixture
NOTE:
For curb idle adjusting procedures, see ADJUSTMENTS
article.
IDLE RPM
| Engine | Idle RPM | ||
|---|---|---|---|
| 4.9L | |||
| Automatic Transmission | 650-700 | ||
| Manual Transmission | 675-725 | ||
| 5.0L | |||
| Automatic Transmission | 675-725 | ||
| Manual Transmission | 700-750 | ||
| 5.8L | |||
| Automatic Transmission | |||
| C6 | 780-830 | ||
| E4OD | 730-780 | ||
| Manual Transmission | 730-780 | ||
| 7.5L | |||
| Automatic Transmission | 650-700 | ||
| Manual Transmission | 650-675 | ||
NOTE:
No idle mixture adjustments are possible. If engine performance is unsatisfactory, see TESTS W/CODES
article.