Section 741 (Engine Controls - Introduction - CNG, Flex-Fuel & Gasoline): Preface: Notes

WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.

This article provides a step-by-step approach for diagnosing driveability, emission and powertrain control system symptoms. Before beginning diagnosis, it may be helpful to reference any Technical Service Bulletins (TSBs) information when this is available.

NOTE: For 6.0L diesel, go to INTRODUCTION - DIESEL . For BI-Fuel, go to INTRODUCTION - BI-FUEL CNG or INTRODUCTION - BI-FUEL LPG .

This article is used in conjunction with the Body, Chassis, Electrical, Powertrain articles, and the Wiring Diagram articles. Additional articles are used to provide additional diagnostics when directed by this article. Additional articles are also used for component removal and replacement information. Refer to the Wiring Diagram articles for vehicle specific wiring information and component, connector and splice location.

The following is a description of the information contained in each of the ENGINE PERFORMANCE articles.