Walkenvol Posted November 19, 2010 Share Posted November 19, 2010 '89 comanche with a 4.0 and AX-15. How does the cruise control get its signal? If a different type of engine is swapped in will the cruise still work by only modding the linkage from the servo to the new engine's throttle control? Link to comment Share on other sites More sharing options...
Walkenvol Posted November 20, 2010 Author Share Posted November 20, 2010 Still searching...anybody know? Link to comment Share on other sites More sharing options...
jimoshel Posted November 20, 2010 Share Posted November 20, 2010 It gets it's signal from the speed sensor, an electro-mechanical device at the end of the speedometer cable behind the instrument cluster. The turns of the speedo cable is converted to electrical pulses which are fed direct to the cruise control module. Link to comment Share on other sites More sharing options...
JeepcoMJ Posted November 20, 2010 Share Posted November 20, 2010 so long as you use the original cruise-equipped speedometer cable, it will still work by doing it that way. Link to comment Share on other sites More sharing options...
Walkenvol Posted November 21, 2010 Author Share Posted November 21, 2010 Thanks for the input. After a lot of reading it appears the mechanical speedometer cruise is self contained and should work with any engine swap by adapting the throttle linkage. If you have an electronic speedometer, then things get more complicated with an engine swap. Link to comment Share on other sites More sharing options...
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