Loss of power and whistle noise when i accelerate on 2002 Kia Spectra

My spectra losess power when shifting and has a whistle kinda noise when i accelerate. On the freeway it wont go over 50

by in Indio, CA on April 03, 2010
1 answer
ANSWER by , April 03, 2010
Inspect for vaccuum leak under the hood. Check the intake manifold