chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Electronic Vacuum Regulator Valve - Service|Page 2634 > < Electronic Vacuum Regulator Valve - Service
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FIGURE B - EGR Vacuum Diagnostic Control - Second Type Valves

Figures A and B show both first and second type EVRV's. The EGR vacuum diagnostic control switch shown in Figures A and B is
serviced separately. Should the diagnostics procedure lead to the replacement of this switch, P/N 25519370 should be ordered.

FIGURE B - EGR Vacuum Diagnostic Control - Second Type Valves

The filter for second type valves (Figure B) will also be serviced by P/N 25520267 beginning approximately November, 1983.

Electronic Vacuum Regulator Valve - Service|Page 2634 > < Electronic Vacuum Regulator Valve - Service