When I'm driving with my ac on my vdc off and slip lights come on and I lose all

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Engine power. The idle bouces between 2,000 and 2,500. It starting to do it now without the ac on.it happeneds every single time the ac is on. When it happeneds I pull over, shut of everything let it sit for 20 mins and it stops. If I try sooner than that it happends the sec I put it in drive. Please help as its getting worse