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94 840 cruise control unit under battery tray 850

posted by  someone claiming to be dg on  Sun Dec 23 11:12 CST 2012 [RELATED]

Happy Holidays all!

Cruise stopped working after I replaced heater core. I have replaced the main cruise relay- no change- replaced the servo unit under the battery tray- no change...but I realized there are a black unit with a small pin hole opening and a white vacuum connector on the servo unit.......I only can find one vacuum line to connect to this unit. Anyone know if there are supposed to be two vacuum lines or if only one, which tube to connect to? The black one or the white one? Thanks for any input you may have.






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