mvpfrank Posted July 7, 2017 Report Share Posted July 7, 2017 Below the power brake vacuum unit you will notice where the speedo cable comes from the tranny. It's screwed into an electrical device with 2 wires coming from it. On the other side of that device a shorter speedo cable is connected & heads to the actual speedometer. What is that electrical device & what does it do? Link to comment Share on other sites More sharing options...
Avanti83 Posted July 8, 2017 Report Share Posted July 8, 2017 Pulse generator for the cruise control possibly. Bob Link to comment Share on other sites More sharing options...
mvpfrank Posted July 8, 2017 Author Report Share Posted July 8, 2017 Thank you, I will check into this. If anyone else has some different idea please reply. Link to comment Share on other sites More sharing options...
IndyJimW Posted July 8, 2017 Report Share Posted July 8, 2017 It is the VSS (Vehicle Speed Sensor / Transducer). It is used for the Cruise Control, ECM and Transmission. Jim Wood Link to comment Share on other sites More sharing options...
mvpfrank Posted July 8, 2017 Author Report Share Posted July 8, 2017 Thank you very much! I also want to thank everybody for all the help on my 87 Avanti.! Link to comment Share on other sites More sharing options...
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