Section 35 (Engine Controls - Trouble Shooting - No Codes - EEC-V - Gasoline & NGV): Introduction

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2002 Mercury Sable, 2002 Mercury Mountaineer, 2002 Mercury Grand Marquis, 2002 Mercury Cougar, and 2002 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: This article covers gasoline, flex-fuel and NGV vehicles with EEC-V systems only. For Bi-Fuel (CNG and GASOLINE, or LPG and GASOLINE) vehicles with EEC-V systems, go to TROUBLE SHOOTING - NO CODES - EEC-V - BI-FUEL article.

NOTE: Some driveability problems may have been corrected by manufacturer with a revised Powertrain Control Module (PCM). Check with manufacturer for latest PCM application.

Before diagnosing symptoms or intermittent faults, perform basic diagnostic procedures in appropriate BASIC DIAGNOSTIC PROCEDURES article and perform QUICK TEST in SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV article. Use this article to diagnose driveability problems existing when a Diagnostic Trouble Code (DTC) is not present.

Symptom checks can direct the technician to malfunctioning component(s) for further diagnosis. A symptom should lead to a specific component or system test and/or adjustment.

NOTE: For specific system or component testing procedures, see appropriate SYSTEM & COMPONENT TESTING article. For specifications, see appropriate ON-VEHICLE ADJUSTMENTS or SERVICE & ADJUSTMENT SPECIFICATIONS article.