2000 Chevy Venture w/3.4 litre

Just got this van , noticed hesitation in it at cruising speeds - as if its missing ocassionally. Is that inherent with this engine (3.4) or is something wrong??? Van has 120 K on it. Acceleration is fine.
Thanks
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I doubt your problem is related but thought I would pass this along. http://www.gmintakeleak.com/ Be sure to watch your coolant level closely.

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No, it should not do that. I don't know the cause, but this does not sound normal.
John
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