2005 Silverado LS 1500 Cruise Control not working properly

Asked by GoMac Jan 27, 2014 at 10:07 AM about the 2005 Chevrolet Silverado 1500 LS RWD

Question type: Maintenance & Repair

While my 2005 Silverado LS 1500 is in "cruise control" between 75-80 mph and I begin going up a small hill, the engine downshifts & the engine runs wild... my tach had been erratic as well and now my "tach" quit working altogether....lately I tried the cruise control at 70-74 and it works fine....does the tachometer have anything to do with the problem??

4 Answers
69,815

John answered 10 years ago

It's the fact that hardly anywhere has that kind of speed limit, slow down...

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69,815

John answered 10 years ago

Ok let me rephrase what I said, most cruise controls cut out at 75-80 because very very few areas have a speed limit above that and if the cruise control was capable of going higher someone could easily say I crashed going 120 because my cruise control malfunctioned. It's a safety feature, if you're going that fast the driver should be in control of the vehicle.

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