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'80 with Cruse Control Problem

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Old Oct 6, 2008 | 06:35 PM
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Default '80 with Cruse Control Problem

Has anyone here experienced the cruise control malfunction where the speed continues to increase when the cruise is engaged? The transducer is usualy suspect if the speedo stops working but this problem is different. Any ideas?

-Mark.
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Old Oct 6, 2008 | 08:45 PM
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Originally Posted by stingr69
Has anyone here experienced the cruise control malfunction where the speed continues to increase when the cruise is engaged? The transducer is usualy suspect if the speedo stops working but this problem is different. Any ideas?

-Mark.
If its constantly creeping higher and higher its probably the transducer.But before you toss it make sure the rod going from the servo to the carb is not too tight.With the carb completely off the high idle cam and lever against idle speed screw make sure you have 1/2" play in the rod.Also make sure the transducer ground wire is attached and is grounding good.
If it just increases speed on engagement then you can adjust the orifice tube to fix that.
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Old Oct 6, 2008 | 08:51 PM
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Roger as usual is correct on how the transducer works. (I keep trying to hire him but I think it’s a gas/travel issue).

If the transducer is defective we can rebuild yours. Here is the link: http://willcoxcorvette.com/product_i...ducts_id=12661

Willcox Inc.
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Old Oct 8, 2008 | 09:29 PM
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would the orifice adjustment work if my cruise increasea then decrease approx 8 mph above and below set point??
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