GM Celebrity/Century/Ciera/6000 1982-1996 Repair Guide

VACUUM DIAGRAMS

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Following is a listing of vacuum diagrams for most of the engine and emissions package combinations covered by this manual. Because vacuum circuits will vary based on various engine and vehicle options, always refer first to the vehicle emission control information label, if present. Should the label be missing, or should the vehicle be equipped with a different engine than the car's original equipment, refer to the following diagrams for the same or similar configuration.

If you wish to obtain a replacement emissions label, most manufacturers make the labels available for purchase. The labels can usually be ordered from a local dealer.

See Figures 1 through 97





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Fig. Fig. 1: A-Body 2.2L VIN 4 MFI - 1993 Federal models

 


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Fig. Fig. 2: A-Body 2.2L VIN 4 MFI - 1993 Federal models

 


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Fig. Fig. 3: A-Body 2.2L VIN 4 MFI - 1993 California models

 


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Fig. Fig. 4: A-Body 2.2L VIN 4 MFI - 1993 California models

 


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Fig. Fig. 5: A-Body 2.2L VIN 4 MFI - All 1994-96 models

 


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Fig. Fig. 6: Chevrolet 2.5L VIN R TBI - 1984 Federal models

 


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Fig. Fig. 7: Chevrolet 2.5L VIN R TBI - 1984 California models

 


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Fig. Fig. 8: Chevrolet 2.5L VIN R TBI - 1984 Canada models

 


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Fig. Fig. 9: Pontiac 2.5L VIN R TBI - 1984 Federal models

 


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Fig. Fig. 10: Pontiac 2.5L VIN R TBI - 1984 California models

 


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Fig. Fig. 11: Pontiac 6000 2.5L VIN R TBI - 1985 Federal models

 


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Fig. Fig. 12: Pontiac 6000 2.5L VIN R TBI - 1985 California models

 


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Fig. Fig. 13: A-Body 2.5L VIN R TBI - 1988 Federal and California models

 


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Fig. Fig. 14: A-Body 2.5L VIN R TBI - 1989 Federal models

 


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Fig. Fig. 15: A-Body 2.5L VIN R TBI - 1989 Federal and California models

 


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Fig. Fig. 16: A-Body 2.5L VIN R TBI - All 1990 models

 


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Fig. Fig. 17: A-Body 2.5L VIN R TBI - All 1990 models

 


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Fig. Fig. 18: A-Body 2.5L VIN R TBI - All 1990 models

 


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Fig. Fig. 19: A-Body 2.5L VIN R TBI - All 1991 models

 


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Fig. Fig. 20: A-Body 2.5L VIN R TBI - All 1991 models

 


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Fig. Fig. 21: A-Body 2.5L VIN R TBI - All 1991 models

 


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Fig. Fig. 22: A-Body 2.5L VIN R TBI - 1992 Federal models

 


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Fig. Fig. 23: A-Body 2.5L VIN R TBI - 1992 Federal models

 


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Fig. Fig. 24: A-Body 2.5L VIN R TBI - 1992 California models

 


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Fig. Fig. 25: A-Body 2.5L VIN R TBI - 1992 California models

 


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Fig. Fig. 26: Chevrolet 2.8L VIN W MFI - 1985 Federal models

 


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Fig. Fig. 27: Chevrolet 2.8L VIN W MFI - 1985 Federal models

 


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Fig. Fig. 28: Chevrolet 2.8L VIN W MFI - 1985 Police/Taxi Federal models

 


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Fig. Fig. 29: Chevrolet 2.8L VIN W MFI - 1985 Taxi California models

 


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Fig. Fig. 30: Chevrolet 2.8L VIN W MFI - 1985 Canada models

 


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Fig. Fig. 31: Chevrolet 2.8L VIN X 2BC - 1985-86 Federal models

 


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Fig. Fig. 32: Chevrolet 2.8L VIN X 2BC - 1985-86 Taxi Federal models

 


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Fig. Fig. 33: Chevrolet 2.8L VIN X 2BC - 1985-86 Taxi Canada models

 


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Fig. Fig. 34: Chevrolet 2.8L VIN X 2BC - 1985-86 Taxi California models

 


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Fig. Fig. 35: Chevrolet 2.8L VIN W TBI - 1985-86 Canada models

 


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Fig. Fig. 36: A-Body 2.8L VIN W TBI - 1988 Manual, Federal and California models

 


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Fig. Fig. 37: A-Body 2.8L VIN W TBI - 1988 Automatic, Federal and California models

 


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Fig. Fig. 38: A-Body 2.8L VIN W TBI - 1989 Automatic, Federal models

 


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Fig. Fig. 39: A-Body 2.8L VIN W TBI - 1989 Automatic, California models

 


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Fig. Fig. 40: A-Body 2.8L VIN W TBI - 1989 no catalyst/export models

 


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Fig. Fig. 41: A-Body 2.8L VIN W TBI - 1989 no catalyst/export models

 


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Fig. Fig. 42: Buick 3.0L VIN E 2BC - 1984 Federal models

 


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Fig. Fig. 43: Buick 3.0L VIN E 2BC - 1984 California models

 


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Fig. Fig. 44: Buick 3.0L VIN E 2BC - 1984 California models

 


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Fig. Fig. 45: Buick 3.0L VIN E - 1985 Federal models

 


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Fig. Fig. 46: Buick 3.0L VIN E - 1985 California models

 


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Fig. Fig. 47: Buick 3.0L VIN E - 1985 Federal models

 


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Fig. Fig. 48: Buick 3.0L VIN E - 1985 California models

 


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Fig. Fig. 49: Buick 3.0L VIN E - 1986 Automatic Federal models

 


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Fig. Fig. 50: Buick 3.0L VIN E - 1986 Automatic California models

 


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Fig. Fig. 51: A-Body 3.1L VIN T - 1989 Federal and without California/override models

 


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Fig. Fig. 52: A-Body 3.1L VIN T - 1989 Federal and California models

 


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Fig. Fig. 53: A-Body 3.1L VIN T - 1990 models

 


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Fig. Fig. 54: A-Body 3.1L VIN T - 1990 models

 


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Fig. Fig. 55: A-Body 3.1L VIN T - 1990 models

 


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Fig. Fig. 56: A-Body 3.1L VIN T - 1990 models

 


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Fig. Fig. 57: A-Body 3.1L VIN T - 1990 models

 


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Fig. Fig. 58: A-Body 3.1L VIN T - 1990 models

 


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Fig. Fig. 59: A-Body 3.1L VIN T - 1990 models

 


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Fig. Fig. 60: A-Body 3.1L VIN T - 1990 models

 


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Fig. Fig. 61: A-Body 3.1L VIN T - 1990 models

 


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Fig. Fig. 62: A-Body 3.1L VIN T - 1990 models

 


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Fig. Fig. 63: A-Body 3.1L VIN T - 1990 models

 


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Fig. Fig. 64: A-Body 3.1L VIN T - 1990 models

 


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Fig. Fig. 65: A-Body 3.1L VIN T MFI - 1990 models

 


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Fig. Fig. 66: A-Body 3.1L VIN T MFI - 1991 Federal models

 


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Fig. Fig. 67: A-Body 3.1L VIN T MFI - 1991 California models

 


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Fig. Fig. 68: A-Body 3.1L VIN M - 1993 Federal models

 


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Fig. Fig. 69: A-Body 3.1L VIN M - 1993 Federal models

 


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Fig. Fig. 70: A-Body 3.1L VIN M - 1993 Federal models

 


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Fig. Fig. 71: A-Body 3.1L VIN M - 1993 Federal models

 


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Fig. Fig. 72: A-Body 3.1L VIN M - 1993 Federal models

 


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Fig. Fig. 73: A-Body 3.1L VIN M - 1993 California models

 


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Fig. Fig. 74: A-Body 3.1L VIN M - 1993 California models

 


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Fig. Fig. 75: A-Body 3.1L VIN M - 1995 - 96 models

 


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Fig. Fig. 76: A-Body 3.1L VIN M - All 1994-96 models

 


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Fig. Fig. 77: A-Body 3.1L VIN M - 1994-96 export models

 


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Fig. Fig. 78: A-Body 3.3L VIN N MFI - 1990 models

 


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Fig. Fig. 79: A-Body 3.3L VIN N MFI - 1990 models

 


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Fig. Fig. 80: A-Body 3.3L VIN N MFI - 1991 Federal models

 


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Fig. Fig. 81: A-Body 3.3L VIN N MFI - 1991 Federal models

 


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Fig. Fig. 82: A-Body 3.3L VIN N MFI - 1991 California models

 


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Fig. Fig. 83: A-Body 3.3L VIN N MFI - 1991 California models

 


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Fig. Fig. 84: A-Body 3.8L VIN 3 TBI - 1984 Federal models

 


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Fig. Fig. 85: A-Body 3.8L VIN 3 TBI - 1984 California models

 


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Fig. Fig. 86: A-Body 3.8L VIN X/Z 2BC - 1984 Federal models

 


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Fig. Fig. 87: Buick 3.8L VIN 3 TBI - 1985-87 California models

 


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Fig. Fig. 88: Buick 3.8L VIN 3 TBI - 1985-87 Federal models

 


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Fig. Fig. 89: Buick 3.8L VIN 3 TBI - 1985-87 Canada models

 


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Fig. Fig. 90: Buick 3.8L VIN X TBI - 1985 California models

 


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Fig. Fig. 91: Buick 3.8L VIN X TBI - 1985 Federal models

 


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Fig. Fig. 92: Buick 3.8L VIN X TBI - 1985 California models

 


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Fig. Fig. 93: A-Body 3.8L VIN 3 MFI - 1988 Federal and California models

 


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Fig. Fig. 94: A-Body 4.3L VIN T DSL - 1982-85 High Altitude models

 


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Fig. Fig. 95: A-Body 4.3L VIN T DSL - 1982-85 Low Altitude wagon models with 4-speed transaxle

 


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Fig. Fig. 96: A-Body 4.3L VIN T DSL - 1982-85 Low Altitude non-wagon models with 4-speed transaxle

 


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Fig. Fig. 97: A-Body 4.3L VIN T DSL - 1982-85 Low Altitude models with 3-speed manual and automatic transaxles

 

 
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