Cruise control problem

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58caddy

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I have a 2005 Tahoe, 5.3 V8. It runs and drives fine normally except when I use cruise control. Cruz is fine one semi flat roads, but when I go downhill, it feels like it’s going to stall, almost like itIng itself, it feels like it’s misfiring. Any solutions or suggestions?
 

Miami-Dade

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@58caddy Moved you here from Site News.
Welcome from Manhattan!
 

Donal

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I have a 2005 Tahoe, 5.3 V8. It runs and drives fine normally except when I use cruise control. Cruz is fine one semi flat roads, but when I go downhill, it feels like it’s going to stall, almost like itIng itself, it feels like it’s misfiring. Any solutions or suggestions?
Have you checked for vacuum leaks into the intake manifold?
 

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