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Discussion Starter #1
I was driving along the highway this weekend, with the cruise set at 75. I looked down at the speedo, and noticed that I was slowing down, and the set light was out. It did this twice, once going up a long hill, the other was near the crest of a hill. Any ideas what could cause this?
 

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Your cruise turns off if there is too much load on the engine (low vacuum), it prevents the engine from lugging itself to death
 

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Discussion Starter #4
It's an automatic.

It sounds odd, because it has never done this before on the same hill, and I think it should have down shifted to get up that hill if it needed to. When you hit resume, it shifts until it hits the set speed, why wouldn't it downshift if need be? Just sounds odd, but you are probably right.
 
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