Injection Pump Timing
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 1998 GMC Suburban, 1998 GMC Pickup, 1998 GMC Cab & Chassis, 1998 GMC C3500 HD, and 1998 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
Diesel injection pump timing can be checked using scan tool. See DIESEL INJECTION PUMP TIMING table. See ADJUSTMENTS article for adjustment procedure.
DIESEL INJECTION PUMP TIMING
| Application | RPM | Degrees BTDC |
|---|---|---|
| 6.5L | Idle | 3.5 |