AutoZone 2009 Scion xD 1.8L EFI DOHC 4cyl | Repair Guides | Emission Controls | Vacuum Diagrams | Vacuum Diagrams | AutoZone.com

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    Jeep Wagoneer/Commando/Cherokee 1957-1983 Repair Information

    VACUUM DIAGRAMS

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    See Figures 1 through 59



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    Fig. Fig. 1: 1973 6 cyl TCS system before March 15. (1971 and 1972 systems are similar)



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    Fig. Fig. 2: 1973 401 V8 with automatic transmission outside California used the distributor vacuum coolant temperature override switch without TCS



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    Fig. Fig. 3: 1973 6 cyl engine EGR system before March 15



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    Fig. Fig. 4: 1973 V8 engine TCS system before March 15



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    Fig. Fig. 5: 1973 V8 engine EGR system before March 15



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    Fig. Fig. 6: 1975 6 cyl engine PCV system



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    Fig. Fig. 7: 1975 6 cyl engine EGR system Federal



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    Fig. Fig. 8: 1975 V8 engine PCV system



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    Fig. Fig. 9: 1975 V8 engine EGR system Federal



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    Fig. Fig. 10: 1975 6 cyl engine EGR system California



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    Fig. Fig. 11: 1975 6 cyl engine EGR system California



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    Fig. Fig. 12: 1975 V8 engine EGR system California



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    Fig. Fig. 13: 1975 V8 engine TCS system California



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    Fig. Fig. 14: 1975-76 CTO system 49 states



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    Fig. Fig. 15: 1976 6 cyl engine EGR system



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    Fig. Fig. 16: 1977 V8 engine vacuum control check valve California



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    Fig. Fig. 17: 1977 6 cyl engine vacuum control check valve California



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    Fig. Fig. 18: 1977 6 cyl engine TCS system



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    Fig. Fig. 19: 1977 V8 engine TCS system



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    Fig. Fig. 20: 1978 4 cyl engine PCV system



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    Fig. Fig. 21: 1978 6 cyl engine PCV system



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    Fig. Fig. 22: 1978 V8 engine PCV system



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    Fig. Fig. 23: 1978 6 cyl engine TCS system



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    Fig. Fig. 24: 1978 V8 engine TCS system



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    Fig. Fig. 25: 1978 4 cyl engine EGR system



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    Fig. Fig. 26: 1978 6 cyl engine EGR system



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    Fig. Fig. 27: 1978 V8 engine EGR system



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    Fig. Fig. 28: 1978 4 cyl engine CTO system



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    Fig. Fig. 29: 1980 4 cyl engine 49 states



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    Fig. Fig. 30: 1980 4 cyl engine with automatic transmission without A/C, 49 states



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    Fig. Fig. 31: 1980 4 cyl engine with automatic transmission and A/C 49 states



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    Fig. Fig. 32: 1980 4 cyl engine with manual transmission with and without A/C, 49 states



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    Fig. Fig. 33: 1980 4 cyl engine with automatic transmission with and without A/C, 49 states



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    Fig. Fig. 34: 1980 6 cyl engine with automatic transmission 49 states



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    Fig. Fig. 35: 1980 6 cyl engine with manual transmission 49 states



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    Fig. Fig. 36: 1980 6 cyl engine with automatic transmission California



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    Fig. Fig. 37: 1980 6 cyl engine with automatic transmission California



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    Fig. Fig. 38: 1981 258 2V with manual transmission and standard cooling 49 state



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    Fig. Fig. 39: 1981 25 2V with manual transmission and heavy duty cooling 49 state



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    Fig. Fig. 40: 1981 25 2V with automatic transmission and standard cooling 49 state



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    Fig. Fig. 41: 1981 25 2V with automatic transmission and heavy duty cooling 49 state



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    Fig. Fig. 42: 1981 258 2V with manual transmission and standard cooling California



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    Fig. Fig. 43: 1981 258 2V with manual transmission and heavy duty cooling California



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    Fig. Fig. 44: 1981 258 2V with automatic transmission and standard cooling California



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    Fig. Fig. 45: 1981 258 2V with automatic transmission and heavy duty cooling California



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    Fig. Fig. 46: 1981 258 2V Hi-altitude with manual transmission and standard cooling



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    Fig. Fig. 47: 1981 258 2V Hi-altitude with manual transmission and heavy duty cooling



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    Fig. Fig. 48: 1981 258 2V Hi-altitude with automatic transmission



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    Fig. Fig. 49: 1981 360 2V with manual transmission and standard cooling Wagoneer, Cherokee and Truck models



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    Fig. Fig. 50: 1981 360 2V with manual transmission and standard cooling 49 state Wagoneer, Cherokee and Truck models



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    Fig. Fig. 51: 1981 360 2V with automatic transmission and standard cooling 49 state Wagoneer, Cherokee and Truck models



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    Fig. Fig. 52: 1981 360 2V with automatic transmission and heavy duty cooling 49 state Wagoneer, Cherokee and Truck models



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    Fig. Fig. 53: 1982 6 cyl manual transmission with and without A/C Canada only Wagoneer, Cherokee and J-10 models



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    Fig. Fig. 54: 1982 6 cyl automatic transmission with and without A/C Canada only Wagoneer, Cherokee and J-10 models



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    Fig. Fig. 55: 1982 6 cyl manual transmission with and without A/C 49 state and California Wagoneer, Cherokee and J-10 models



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    Fig. Fig. 56: 1982 6 cyl automatic transmission with and without A/C 49 state and California Wagoneer, Cherokee and J-10 models



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    Fig. Fig. 57: 1982 6 cyl automatic and manual transmission with and without A/C High altitude Wagoneer, Cherokee and J-10 models



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    Fig. Fig. 58: 1982 6 cyl 360 engine manual and automatic transmission with and without A/C 49 state and High altitude Cherokee, J-10 and J-20 models



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    Fig. Fig. 59: 1982 6 cyl 360 engine automatic transmission with and without A/C Wagoneer models with heavy duty cooling

    Following are vacuum diagrams for most of the engine and emissions package combinations covered by this guide. 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 vehicle be equipped with a different engine from the vehicle's original equipment, refer to the diagrams below 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.

     
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