Stats: 87 Caprice, 79350, 700R4, CCQ-J.

Yesterday, I replaced the broken servo assembly with a used one from the same car.

My column switch doesn't work, for ****s and giggles I've been splicing the wires by hand while driving to test it. And that works well enough until I can wire up a new switch..

When the cruise is on, and set at any speed, it will allow the MPH to drop very rapidly, and 3 seconds later, I'm going slightly above the set speed, and it drops allover again. The effect would be the same as driving with the brake barely on, and flooring the car every three seconds.

I've visually checked underhood for vacuum leaks, found nothing of concern. I plan on checking the brake switch tomorrow.

Any clue?

 

Now Macgyver wouldn't have had a problem with this. He's rig up some other gadget to make it work, or just blow it up.

But, you probably need to take the excess slack out of the cable. It causes it to first, under shoot your setting, then while taking out the excess slack, it over shoots, and so on until usually, on a very flat road, it finally settles down.

Maybe. . .

I have managed to pull the new wires through the column with on of the broken wires before. I've also had to do it the hard was too.

 

Thay's not really an odd question. It used to happen all the time on cruise servos with chains, less frequently with the cables.

You know that you can probably get an entire replacement turn signal lever for next to nothing - switch included.

 

I'm swapping steering columns soon, that's why I haven't bought a new switch

I had a feeling it was the cable