Hi,
I own a 94 Sentra which has been running along great till now (has 121K miles on it). I've recently been having problems with my cruise control. It works fine at lower speeds (around 30 - 50 mph), but fails at higher speeds (60 - 80mph - which I where it is needed...). I can feel the cruise control trying to accelerate, but it fails and the car steadily slows down to around 50mph and then it maintains that speed. My guess is that it's a problem of a leaky diaphragm in the cruise control system. And the mechanic gave me an estimate of around $150 - $300 to fix it depending on whether I wanted a new or used Cruise control box. Anybody have any other thoughts or less expensive solutions?
Thank you. Thiaga