RPM "Revving" When Cruise Control Is On - Cadillac Forum - Enthusiast forums for Cadillac Owners

RPM "Revving" When Cruise Control Is On

  #1  
Old 04-14-2016, 04:52 PM
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Join Date: Apr 2016
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Default RPM "Revving" When Cruise Control Is On

I have an ongoing issue with my 2007 Cadillac DTS. Whenever I have the cruise set (no matter the speed, but mostly at 60mph or 70mph) the RPM revs up and then drops back down - it does this randomly with no rhyme or reason. Does it on hills, straight stretches, etc. Seems like it might be a little more of a problem when I first get on the road - but even after a day of stop/go, will still do it. When I asked my service technician about it, he said it would do that when the filter was dirty. Well, guess what? After changing filter it still does the same thing. I'm not a car person, so I don't know if I've used the right terminology to explain the problem. Hope someone can help.
 
  #2  
Old 02-10-2018, 12:45 PM
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Join Date: Oct 2017
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My 2004 Deville would not hole speed. Up and down 2-3 mph. It was low tire pressure creating a drag and overcorrection by the cruise control. Adjusted tire pressure and no more problems. Hope your problems are that simple.
 
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