2000 Ford E-Series Van acceleration

2000 FORD E-SERIES VAN
218,000 MILES • V8 • 2WD • AUTOMATIC
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GARHAM
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The vans starts perfectly ,trottles smoothly ,tranny changes ok but at appr0x 40 -45mph..the engine bucks ,ans loses power as you accelerate ???
Feb 28, 2010 at 8:11 PM
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JACOBANDNICKOLAS
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Have you checked fuel pump pressure?
May 4, 2010 at 9:43 AM