Auto Parts and Repairs
Fuel Filters
Fuel Pumps
Ford E-150 Van

Why would your 1989 jeep wrangler run like it is starving for gas when you go into 4th and 5th gear runs great in lower gears only when you get faster does this happen you replaced fuel pump and filte?

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Wiki User
May 01, 2007 1:27PM

you installed, wrong pump or a defective pump