Section 120 (Engine Controls - Basic Testing - 6.5L Diesel): Summary
WARNING: This page does not describe the selected car, but rather 20 other vehicles, including the 1994 GMC Yukon, 1994 GMC Vandura Special, 1994 GMC Vandura, 1994 GMC Suburban, and 1994 GMC Rally Camper Special. However, it is still accessible from the selected car via links, so may be relevant.
If faults were not found while performing BASIC DIAGNOSTIC PROCEDURES, proceed to appropriate G - 6.5L TESTS W/ CODES article in the ENGINE PERFORMANCE section below. If no hard codes are found in self-diagnostics, or vehicle does not have a self-diagnostic system, proceed to TESTS W/O CODES - 6.5L DIESEL article in the ENGINE PERFORMANCE section for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.
- TESTS W/CODES - 6.5L DIESEL (for "C" & "K" Series)
- TESTS W/CODES - 6.5L DIESEL (for "G" & "P" Series)