For about a year, my cruise control would work only once for each time I started my car. After that one shot, if I tried to use it again, it would try for a second and then then turn itself off. Now it has gotten worse and I can rarely get it to latch. Even when it was working, I noticed a somewhat slow response. Especially on hills. Going up a hill, it would slow down by 5mph and after cresting the hill, it would speed up to 5mph over then slowly return to the set speed. Hopefully these 2 are related and all I have to do is take something apart and clean it. I've never worked on a cruise control system before and unfortunately, my Chiltens manual doesn't even show the location of the device on the engine compartment. Any insight would be greatly appreciated.