Injection Pump Timing
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1997 GMC Yukon, 1997 GMC Suburban, 1997 GMC Pickup, 1997 GMC Cab & Chassis, and 1997 GMC C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Diesel injection pump timing can be checked using scan tool. See DIESEL INJECTION PUMP TIMING (DEGREES BTDC @ RPM) table. For diesel injection pump timing adjustment procedures, see the ADJUSTMENTS - 6.5L DIESEL
article.
DIESEL INJECTION PUMP TIMING
| Application | Man. Trans. | Auto. Trans. |
|---|---|---|
| 6.5L | 3.5 @ Idle | 3.5 @ Idle |