Engine hesitation

Model: Cutlass Supreme Engine: 3.1 Front-wheel drive.
The engine seems to hesitate between 42-49 mph's. When I then accelerate it smooths out. Any suggestions?
Thanks, Keith -SUP
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khankins wrote:

TPS worn out?
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can't see that is a problem. I would check for spark plugs and wires then fuel supply 1st.
Paul

accelerate it

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