LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 1998 >> Monte Carlo LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Controls - Tests W/Codes - 3.8L) >> Diagnostic Trouble Codes >> DTC P0404 - EGR Valve Pintle Stuck Closed >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different variant/trim than selected.

Check for excessive deposits on EGR valve pintle or seat. Check for poor connection at PCM or EGR valve harness connectors.