I FUEL EXHAUST CARBURETION 4 I 3 670B MODULE VALVE Emission Control System A l R Valves Con t 86 CK2 3 292 22049548 1 113 00 VALVE AIR INJ ENG CHK 86 CK2 3 350M W FED 14087001 1 16 00 VALVE DECELERATION 86 CK2 3 350M W CALIF 17072851 1 35 50 VALVE AIR INJ CONT 86 CK2 3 350M W FED 17085042 1 65 75 VALVE AIR INJ CONT LOWER 86 CK2 3 350M W FED 17085834 1 66 25 VALVE AIR INJ CONT UPPER 86 CK2 3 350M 454W W CALIF 22048214 2 N L VALVE AIR INJ ENG CHK 86 CK2 3 350M 454W W FED 22049549 LH 85 75 VALVE AIR INJ ENG CHK 86 CK2 3 350M W FED 22049549 1 85 75 VALVE AIR INJ ENG CHK 86 CK2 3 454 W FED 17085833 LH 66 25 VALVE AIR INJ CONT 86 CK2 3 454 W CALIF 17086028 1 33 75 VALVE AIR INJ CONT 86 CK2 3 454 W FED 22049548 2 113 00 VALVE AIR INJ ENG CHK 86 CK2 3 454W W FED 14087002 1 16 00 VALVE DECELERATION 86 CK2 3 454W W FED 17085057 RH 61 50 VALVE AIR INJ CONT 86 C2 03 305F 22048209 1 10 65 VALVE AIR INJ ENG CHK 87 RV1 2 3 4 3Z 5 0H 17087138 1 68 15 VALVE AIR INJ CONT 87 RV1 2 3 4 3Z 5 0H 5 7K 7 4N 22050642 2 20 80 VALVE AIR INJ ENG CHK 87 88 RV1 2 3 5 7K 17087138 1 68 15 VALVE AIR INJ CONT 87 88 RV2 3 O3 43 7 4N 17087141 1 67 30 VALVE AIR INJ CONT 87 88 RV2 3 292T 14086044 1 16 20 VALVE DECELERATION 87 88 RV2 3 292T 17085912 1 70 25 VALVE A R INJ CONT 87 88 RV3 292T 454W 22049548 2 113 00 VALVE AIR INJ ENG CHK 87 88 RV3 350M 17085042 1 65 75 VALVE AIR INJ CONT LOWER 87 88 RV3 35OM 17085834 1 66 25 VALVE AIR INJ CONT UPPER 87 88 RV3 350M 22049549 1 85 75 VALVE AIR INJ ENG CHK 87 88 RV3 350M W A I R K19 14087001 1 16 00 VALVE DECELERATION 87 88 RV3 454W 14087002 1 16 00 VALVE DECELERATION 87 88 RV3 454W 17085057 RH 61 50 VALVE AIR INJ CONT 87 88 RV3 454W L 17085833 LH 66 25 VALVE AIR INJ CONT 87 88 RV3 454W 22049549 LH 85 75 VALVE AIR INJ ENG CHK 88 RV1 2 3 5 7K 7 4N 22050642 2 20 80 VALVE AIR INJ ENG CHK 3 6700 SOLENOID Emission Control System EGR Control I 85 86 CK1 4 3N W CALIF 1997692 1 14 70 SOLENOID E G R VAC CONT BLEED VLV 85 CK1 2 305F 350L 1997657 1 18 05 SOLENOID E G R VAC CONT BLEED VLV 85 86 CK1 2 305H 350L W A T MD8 MV4 1997658 1 15 65 SOLENOID E G R VAC CONT BLEED VLV Q 85 CK1 2 6 2C W CALIF 1997134 1 63 25 SOLENOID E G R VLV EXH PRESS REG 2 VLV I 85 86 CK1 2 6 2C W FED ALT 1997675 1 42 75 SOLENOID E G R VLV EXH PRESS REG VLV 85 C1 305H W A T MV9 M40 1997658 1 15 65 SOLENOID E G R VAC CONT BLEED VLV 86 CK1 305F 350L W CALIF 1997657 1 18 05 SOLENOID E G R VAC CONT BLEED VLV 86 CK1 2 03 16 305H W A T M40 1997658 1 15 65 SOLENOID E G R VAC CONT BLEED VLV 86 C2 03 305F 350L W CALIF 1997657 1 18 05 SOLENOID E G R VAC CONT BLEED VLV 87 88 RV1 4 3Z 5 0H 5 7K 14102002 1 11 90 SOLENOID E G R VAC CONT BLEED VLV 87 RV1 2 6 2C 1997675 1 42 75 SOLENOID E G R VLV EXH PRESS REG VLV 87 RV2 03 4 3Z 5 0H 14102002 1 11 90 SOLENOID E G R VAC CONT BLEED VLV 87 RV2 03 5 7K W NA1 14102002 1 11 90 SOLENOID E G R VAC CONT BLEED VLV 87 88 RV2 3 5 7K 7 4N EXC NM8 EXPORT 14092278 1 N L SOLENOID E G R VLV EXH PRESS REG VLV 88 RV1 6 2C 1997134 1 63 25 SOLENOID E G R VLV EXH PRESS REG V VLV 88 RV2 3 5 7K 7 4N 10068570 1 51 50 SOLENOID E G R VLV EXH PRESS REG VLV 3 670D VALVE Emission Control System EGR Valves NOTE REFER TO EGR VALVE CHARTS AT THE END OF THE 3 000 GROUP CONTAIN NG CROSS REFERENCE NFORMATION SERVICE NUMBERS TO PRODUCTION NUMBERS PRODUCTION NUMBERS TO SERVICE NUMBERS I 85 86 CK1 06 350L W A T MD8 FED 17110806 1 65 33 VALVE E G R PROD 17085769 85 86 CK1 06 35OL W A T MD8 ALT 17110808 1 65 33 VALVE E G R PROD 17085771 85 86 CK1 2 6 2C W FED ALT 17075647 1 124 17 VALVE E G R PROD 17075647 85 CK1 2 6 2C W CALIF 17084728 1 124 17 VALVE E G R PROD 17084728 85 CK2 3 350M W CALIF H5D EXC Z49 CANADA 17110469 1 32 20 VALVE E G R PROD 17084724 85 CK2 3 350M W FED EMIS CONT H5D 17111260 1 32 20 VALVE E G R PROD 17085920 85 CK3 454W W CALIF 17110470 1 32 20 VALVE E G R PROD 17084725 jj 1988 GENERAL MOTORS SERVICE PARTS 0PERAT 0NS LT TRUCK 52R t 3 670 3 670 3 46 REV 1 88