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What if the light does turn on when the set button is pressed. I can press the set button and/or the resume switch and the system activates and turns on the light. Yet the cruise definitly does not engage. I don't believe there is a vacuum leak but I could...
This is a common problem and it really sucks!
I have an 87' GN I had the whole thing stripped to metal and repainted in December of 02. It was a friend who did it for me with 20+ years of body work under his belt. He was once a Buick GN owner and was aware of the flaw. He removed all the lead...