1989 F-150 5L loading up I recently purchased a 1989 F-150 with a new short block 5L. When at idle, she wants to load up. The EGR, MAP and IAC all check out.I changed the TFI, ignition coil, and new plugs. (Changed the TFI because of starting problems) CATS are clear and I replaced the muffler with the correct one.
Any help will be greatly appreciated. |