C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Nov 12, 2013 | 08:38 PM
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I found a cable coming under the driverside of the car it was un hooked. I saw where it looked like it could be located so I hooked it up, went to move the car today it wouldn't go into gear it would but wouldn't move car is a 72 COUPE 350 air car w/ 4-speed I unhooked the cable push it back down in the sheath I GUESS CLOSING SOMETHING and all worked fine.

SOME THEFT DETERANT?

Last edited by Kryptonite; Nov 12, 2013 at 08:41 PM. Reason: change
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Old Nov 12, 2013 | 09:08 PM
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This cable is underneath steering colum and had a machined end that fit on a stud that a cotor pin fit in to secure. WHAT IS THIS ???????
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Old Nov 12, 2013 | 09:21 PM
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That's your steering interlock cable. When connected you have to have your car in reverse ( I think that is correct for a manual a automatic it's park) and the steering wheel in the locked position to remove the keys.
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Old Nov 12, 2013 | 09:33 PM
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So does it move the collar on the collum to activate rear backup light mine was unhooked I hooked it up and it would stall in ever gear what does it do or purpose?
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Old Nov 12, 2013 | 09:40 PM
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It moves the lever underneath the steering column so you can remove the keys. I am not real familiar with the manual setup I would think that the reverse switch was on the transmission.
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Old Nov 12, 2013 | 09:48 PM
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Looking at the AIM for a 71 it shows the cable connecting to the top of the reverse lever of your transmission. Are you sure the cable was moving when connected?
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Old Nov 12, 2013 | 10:19 PM
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Yeah, that's the reverse interlock cable. Has nothing to do with the reverse lights on a stick car- The reverse light switch is on the trans, not the column on a stick.

The cable is to prevent inattentive drivers from getting out of the car (removing the keys) without having the transmission in reverse (in case they didn't use the emergency brake either) to prevent it from rolling away.
Personally, I found it more of a nuisance than a safety feature and disabled it on my coupe.

Your mileage may vary..
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Old Nov 12, 2013 | 10:42 PM
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Thanks it would not move it would stall with it hooked up it must be off somehow I disconnected it all is good again
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