PDF associated: /PT 36-0001.pdf

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JDA5245 PT 36 0001 CRUISE CONTROL TRANSDUCER TROUBLESHOOTING GM 1969 84 The chart below can be used to trouble shoot most Cruise Control Transducers Refer to your vehicles service manual for specific diagnostic procedures and adjustments Each turn will change vehicle speed one mph Accuracy testing should be done at 55 mph Refer to vehicles service manual for specific adjustment Note NO 12 VOLT POWER ERRATIC CRUISE PERFORMANCE Check fuse and check brake light switch Engine does not accelerate Check orifice tube check vacuum leak Check for pinched damaged or disconnected vacuum hoses Check for binding throttle linkage Check adjustment of brake switch and vacuum release switch Car cruises above below engagement speed Check engine manifold vacuum Check hoses fittings back to transducer Cruise speed below selected speed Screw the orifice tube outward Cruise speed above selected speed Screw the orifice tube inward Replace transducer No vacuum Vacuum