78 lower speedo cable
Thread Starter
4th Gear
Joined: Aug 2011
Posts: 4
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78 lower speedo cable
Hi, I'm new here and I've spent some quality time reading some great information. I removed my lower speedo cable (tranny to cruise control transducer) and i notice that there is a plastic tip at the end of the cable which enters the CC transducer. I want to replace the cable but all the ones I see on the internet for sale don't show a plastic tip. On my cable, the plastic tip looks like a pyramid. Is this correct? or is my transducer the culprit? How do I go about testing my transducer?
Thanks
Thanks
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Hi, I'm new here and I've spent some quality time reading some great information. I removed my lower speedo cable (tranny to cruise control transducer) and i notice that there is a plastic tip at the end of the cable which enters the CC transducer. I want to replace the cable but all the ones I see on the internet for sale don't show a plastic tip. On my cable, the plastic tip looks like a pyramid. Is this correct? or is my transducer the culprit? How do I go about testing my transducer?
Thanks
Thanks
How do you test.. easy, remove the upper cable from the transducer and hook up a drill to it. The speedo should then move, if you have no movement you nave a speedo or upper cable problem. (you'd then check the upper cable first).
If you have movement then attach the lower cable on the unit and do the same test from below the car.
If you have movement then everything is ok and you have a bad drive gear in the tranny. You can check the drive gear by removing the coupling at the tranny.
And I can never say it enough... never never never apply lubricant to your cables.
Willcox.
Thread Starter
4th Gear
Joined: Aug 2011
Posts: 4
Likes: 0
Thanks for the reply. My upper cable is tested and turns moves the speedo so I know its functional. My lover cable moves freely so I'll hook it back up to the transducer and attach the tranny side to a drill and see if it moves the speedo. If not, it may very well mean my transducer is jammed. I'll give it a try. By the way, I buy lots of parts from you guys! Great stuff. 
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Thanks for the reply. My upper cable is tested and turns moves the speedo so I know its functional. My lover cable moves freely so I'll hook it back up to the transducer and attach the tranny side to a drill and see if it moves the speedo. If not, it may very well mean my transducer is jammed. I'll give it a try. By the way, I buy lots of parts from you guys! Great stuff.
We are getting closer to going back in to the transducer rebuilding business too. I stopped for a long time due to lack of cores and parts but I may have a bunch of cores coming and if I do then we will fire it back up.
