Section 7 (Engine Controls - Tests W/O Codes): Introduction

WARNING: This page does not describe the selected car, but rather 35 other vehicles, including the 1992 Pontiac Trans Sport, 1992 Oldsmobile Silhouette, 1992 Oldsmobile Bravada, 1992 GMC Yukon, and 1992 GMC Vandura Special. However, it is still accessible from the selected car via links, so may be relevant.

Before diagnosing symptoms or intermittent faults, perform steps in BASIC TESTING article and appropriate G - TESTS W/ CODES article. Use this article to diagnose driveability problems if a hard fault code is not present or if vehicle is not equipped with a self-diagnostic system.

Symptom checks are intended to direct the technician to malfunctioning component(s) for further diagnosis. A symptom should lead to either specific component or system testing or an adjustment specification. Use intermittent test procedures to locate driveability problems which DO NOT occur when the vehicle is being tested.

NOTE: For specific testing procedures, see I - SYS/COMP TESTS article. For specifications, see ADJUSTMENTS or SPECIFICATIONS article.