In 1970 I bought one of the first Chevrolet Blazers. I drove it until two years ago when it finally was just too worn out to drive, at close to 300K miles. I sold it to someone who is in the process of restoring it for show. I knew that I wanted an other 2 door Blazer, but they quit making them in 1995. After a long search I purchased an original 86K miles on a 2 door 1996 GMC Yukon SLE. I love this car.
However, I have just experienced my first mechanical failure. I am a fairly good shade tree mechanic. At 70 years old I have worked on every vehicle I have ever owned. So I am trying to figure out what has gone wrong with the cruise control. I live on the South Central Nebraska and Kansas border. On a return trip from our lake house in Kansas (yes, there are lakes in Kansas) to my home in Nebraska, as I was going up and down the rolling prairie hills, the cruise control started having trouble going up the inclines. Then it quit working altogether. I checked the fuses and they are ok. My next thought is the control unit has quit working. I looked for a replacement unit and saw the price... OUCH.
Is there something else that I could check before I replace the control unit? Is there any way that I can verify the control unit is at fault?
Thank you for any advice you can give me. I appreciate any help that I can get.