LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 26 (Engine Controls Self-Diagnostics - 5.0L & 5.7L) >> Diagnostic Tests >> DTC P1404: EGR Valve Closed Pintle Position >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2001 GMC Savana, 2001 Chevrolet RV Cutaway, 2001 Chevrolet Cutaway, and 2001 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

This diagnostic will detect EGR pintle position not returning to learned closed position due to foreign material lodged in pintle seating area, or due to a defective EGR valve. PCM will command EGR valve fully open to attempt to clear valve of any foreign material, although vehicle must be at cruising speed for this to occur. If third attempt to clear valve is unsuccessful, DTC P1404 will set.

An intermittent may be caused by a poor connection, rubbed through wire insulation, a broken wire inside insulation. Thoroughly inspect any circuitry that is suspected of causing intermittent complaint.

scientia non olet · About LEMON Manuals