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. Should the label be missing, or should the vehicle be equipped with a different engine from the original equipment, refer to these diagrams for the same or similar configuration.
Fig. Fig. 1: Early model 1.9L engine - federal
Fig. Fig. 2: Early model 1.9L engine - California
Fig. Fig. 3: Early model 2.0L and 2.8L carbureted engines
Fig. Fig. 4: 1984 1.9L engine with manual transmission - federal and low altitude
Fig. Fig. 5: 1984 1.9L engine with manual transmission - federal and high altitude
Fig. Fig. 6: 1984 1.9L engine with manual transmission - California and low altitude
Fig. Fig. 7: 1984 1.9L engine with automatic transmission - California and low altitude
Fig. Fig. 8: 1984 2.0L engine with automatic transmission - federal and low altitude
Fig. Fig. 9: 1984 2.0L engine with manual transmission - federal and low altitude
Fig. Fig. 10: 1984 2.0L engine with manual transmission - federal and low altitude alternate
Fig. Fig. 11: 1984 2.2L engine with manual transmission - federal and low altitude
Fig. Fig. 12: 1984 2.8L engine with manual transmission - federal and low altitude
Fig. Fig. 13: 1984 2.8L engine with automatic transmission - federal and low altitude
Fig. Fig. 14: 1984 2.8L engine with manual transmission - federal and low altitude alternate
Fig. Fig. 15: 1984 2.8L engine with automatic transmission - federal and low altitude alternate
Fig. Fig. 16: 1984 2.8L engine with manual transmission - federal and high altitude
Fig. Fig. 17: 1984 2.8L engine with manual transmission - federal and high altitude alternate
Fig. Fig. 18: 1984 2.8L engine with manual transmission - federal and high altitude alternate
Fig. Fig. 19: 1984 2.8L engine with automatic transmission - federal and high altitude
Fig. Fig. 20: 1984 2.8L engine with manual transmission - federal and high altitude alternate
Fig. Fig. 21: 1984 2.8L engine with automatic transmission - federal and high altitude alternate
Fig. Fig. 22: 1984 2.8L engine with automatic transmission - federal and high altitude alternate
Fig. Fig. 23: 1984 2.8L engine with manual transmission - California and low altitude
Fig. Fig. 24: 1984 2.8L engine with automatic transmission - California and low altitude
Fig. Fig. 25: 1984 2.8L engine with automatic transmission - California and low altitude alternate
Fig. Fig. 26: 1985 1.9L engine with manual transmission - federal and low altitude
Fig. Fig. 27: 1985 1.9L engine with manual transmission - federal and high altitude
Fig. Fig. 28: 1985 2.2L diesel engine with manual transmission - federal
Fig. Fig. 29: 1985 2.2L diesel engine with manual transmission - California and low altitude
Fig. Fig. 30: 1985 2.8L engine with manual transmission - federal and low altitude
Fig. Fig. 31: 1985 2.8L engine with manual transmission - federal and low altitude alternate
Fig. Fig. 32: 1985 2.8L engine with manual transmission - federal and low altitude alternate
Fig. Fig. 33: 1985 2.8L engine with automatic transmission - federal and low altitude
Fig. Fig. 34: 1985 2.8L engine with automatic transmission - federal and low altitude alternate
Fig. Fig. 35: 1985 2.8L engine with automatic transmission - federal and low altitude alternate
Fig. Fig. 36: 1985 2.8L engine with manual transmission - federal and high altitude
Fig. Fig. 37: 1985 2.8L engine with manual transmission - federal and high altitude alternate
Fig. Fig. 38: 1985 2.8L engine with manual transmission - federal and high altitude alternate
Fig. Fig. 39: 1985 2.8L engine with manual transmission - federal and high altitude alternate
Fig. Fig. 40: 1985 2.8L engine with manual transmission - federal and high altitude alternate
Fig. Fig. 41: 1985 2.8L engine with automatic transmission - federal and high altitude
Fig. Fig. 42: 1989 2.5L TBI (VIN E) engine - federal
Fig. Fig. 43: 1989 2.5L TBI (VIN E) engine - California
Fig. Fig. 44: 1989 2.8L TBI engine - federal altitude
Fig. Fig. 45: 1989 2.8L TBI engine - federal altitude alternate
Fig. Fig. 46: 1989 2.8L TBI engine - California
Fig. Fig. 47: 1989 2.8L TBI engine - leaded fuel export without catalyst
Fig. Fig. 48: 1989 4.3L TBI engine - federal altitude
Fig. Fig. 49: 1991 4.3L engine - federal and high altitude
Fig. Fig. 50: 1991 4.3L engine - California
Fig. Fig. 51: 1991 4.3L engine - California alternate
Fig. Fig. 52: 1993 4.3L engine - federal
Fig. Fig. 53: 1993 4.3L engine - California
Fig. Fig. 54: 1993 4.3L engine - California alternate
Fig. Fig. 55: 1993 4.3L engine - federal alternate
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