Exhaust Gas RECIRCULATION

WARNING: This page is about a different car, the 2003 Cadillac Seville and 2003 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Use protective gloves, or allow exhaust system to cool, before servicing exhaust system components.

NOTE: Manufacturer does not provide testing procedures for many individual systems and components. For EGR system testing not listed, perform related DTC testing procedure. See DIAGNOSTIC TROUBLE CODE DEFINITIONS in SELF-DIAGNOSTICS - 4.6L DEVILLE & SEVILLE article.

NOTE: For EGR system diagnosis, see INSPECTION/MAINTENANCE SYSTEM CHECK under DRIVE CYCLES in SELF-DIAGNOSTICS - 4.6L DEVILLE & SEVILLE article.