8.0L V10 Engine: Troubleshooting: Introduction

Engine diagnosis is helpful in determining the causes of malfunctions not detected and remedied by routine maintenance. These malfunctions may be classified as either mechanical (e.g., a strange noise), or performance (e.g., engine idles rough and stalls). For possible causes and corrections of malfunctions, see PERFORMANCE TEST . For engine performance and diagnostic information, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.