Hi. I just rejoined the 505 club over the weekend after regrettably ditching my '87 STI a few years ago for a gas can on wheels.
So I finally picked up a '82 505S Turbo Diesel in Chicago on Saturday and drove it back to Cincinnati. It was doing fine until I was about half way home and decided to test out the cruise control just for curiosity's sake. Well, when I hit the button to set the speed it just began accelerating, not maintaining speed like it should have. Now it's stuck. When it's put in neutral it revs loudly and pours smoke out the exhaust while at low speed. It's not on full but the only time it isn't heading for top speed is when I'm going up a steep gradient. Luckily I was able to nurse it all the way home, with my foot on the brake nearly the entire time.
So... Anyone have any ideas?
I thought to unhook the battery and drain the charge in the car in an effort to reset the electrical system but the battery connectors are more or less locked so I couldn't disconnect the thing even after getting the nuts off (I'm no mechanic). The guy who sold it to me also sent along the owner's manual and a Haynes guide (For petrol 505's, not really that helpful) so I was able to find all the crucial pieces to the cruise on the wiring diagram. Unfortunately I can't locate them in the car (I'm really not a mechanic). Also, for some reason the fuse diagram in the manual doesn't match my model so it's not clear at all which one might be for the cruise. I had also thought to remove the cc fuse to try and disable the system to see if that worked. So I'm pretty limited by my lack of skills obviously.
Anyone have any advice? Am I completely off base?
Thanks
Kevin