hey everyone i have an 03 ford f150 4.2. when i shift into first from a stop and let off the clutch while accelerating, the truck will lurch forward and get really sluggish and it sounds like a lot of air is being forced out through the front of the truck at the same time. it usually only does this occasionally but today when i was driving home from work it did it the whole way home (city streets). like i said it doesnt do this every time i drive it. but i know it cant be good any suggestions? Thanks.

 

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