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2004 Trailblazer LS 4x4, 4.2L:, 2016 ATS-V, 2014 CTS-V Wagon, 2018 Audi A7
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150 Posts
Discussion Starter #1
On the whole my cruise control works fine on my '04 Trailblazer LS 4x4. However, when it glides downhill, even on the downside of an overpass, the car ''bucks'' or ''jerks''. Any clues as to why it does this? Flat roads it's great (thank goodness I live in Florida).
 

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2004 gmc envoy_slt
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2,410 Posts
It's possible that under that condition, the TC lock/unlock is kicking in, or the overdrive is going in and out.
 

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2004 Trailblazer LS 4x4, 4.2L:, 2016 ATS-V, 2014 CTS-V Wagon, 2018 Audi A7
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150 Posts
Discussion Starter #3
Well, at least Florida is flat, so I'll just put up with it. Thanks.
 
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