Curb Idle Speed
4-1401. Place transmission into Neutral or Park.
2. Install a suitable tachometer onto engine as per manufacturer's instructions.
3. Start and allow engine to reach normal operating temperature.
4. Place A/C-Heat selector switch to OFF position, if equipped.
5. Check curb idle speed. If curb idle speed obtained is not as specified, turn curb idle speed adjusting screw until specified speed is obtained. See image with applicable components.
Fig. 7 Curb Idle speed adjust. 4-140 w/TSP kicker, VOTM & Idle tracking switch:
W/TSP kicker, VOTM & Idle tracking switch.
Fig. 8 Curb Idle speed adjust. 4-140 w/VOTM & Idle tracking switch:
W/VOTM & Idle tracking switch
Fig. 9 Curb Idle speed adjust. 4-140 w/TSP & Idle tracking switch:
W/TSP & Idle tracking switch
Fig. 10 Curb Idle speed adjust. 4-140 w/Idle tracking switch:
W/Idle tracking switch
Fig. 11 Curb Idle speed adjust. 4-140 w/VOTM:
W/VOTM