surging cruise control

[billyvette]

Hey everybody, I hope things are going well for all you c3 drivers.
I recently spent about 150 for a windjammer for my 78 s/a and have been enjoying the reduced wind turbulence.

Some of you may remember my spedo trouble, and a new lower cable and transducer fixed the problem, in addition I recently overhauled my tachometer and now it is working.

My cruise is working again with the new tranducer. I can set it, it will slow down about 5 mph and them speed back up that same 5 mph - over and over.

Can someone tell me what the problem might be? Leaking vaccum hoses, adjustments on the transducer?

Any suggestions or advice is greatly appreciated.:cool

I am enjoying the spring driving here in North Mississippi, unless your car is a "show car only" get it out and drive it!!!!

 

[chuck]

Make sure there is not any slack in the cable from the servo to the carb.

 

[billyvette]

thanks for the reply, chuck

 

[jcarle]

I have the same problem. Checked the for slack and didn't see any. I hope you get some good answers for your problem. Maybe we can fix both of our problems.

Jon

 

[81 Corvette]

Do you have any vacuum leaks?

 

[billyvette]

as far as i can tell i have no vaccum leaks, the napa transducer only lasted about 25 miles before my speedo died again. Now i am going to have to put a second Napa transducer on because they do not want to give me my money back.

 

[Eddie 70]

That is BS. I can`t believe they would not give you a swap. Wow. That is customer service for you. I bet they take the old one in on core charge.

 

[Bob Chadwick]

as far as i can tell i have no vaccum leaks, the napa transducer only lasted about 25 miles before my speedo died again. Now i am going to have to put a second Napa transducer on because they do not want to give me my money back.

Hopefully you put this on your credit card and can dispute the charge.

 

[billyvette]

no wait guys

There are going to get me another transducer, I am just thinking that one from ecklers or another corvette supplier would be better. They did not want to refund my money, they definetly wanted to get me another transducer. I may have not been clear in my previous post.

 

[Nut]

The surging is a common problem. It's a crappy spin off from a Mopar design. Chrysler however got theirs right. I gave up getting mine to work years ago.

............. Nut