Gozuki· Premium Member
Discussion Starter · #1 ·
I have a 91 E250 w/efi 5.0/AOD. Has always ran great till this am. I hit the gas to pass a semi, then upon passing, found that I had "cruise control" that is, take foot off gas, keep going. I do not have cruise control. Stopping is standing on the brake, with the engine roaring at ~2500 rpm. Under load, it feels like 1/3 trottle min. at all times. I can go faster, but not slower. If I give it just a little gas, sounds almost like its detonating. Upshifts waay too early, downshifts early too. A lot less power than usual. So I pulled the airbox, air hoses, looked good. Butterfly valves didnt look stuck, appeared to close all the way, but I hosed em down with cleaner anyway. I pulled the idle solenoid connector with no change. All the throttle springs, and cable look okay. It looks like the intake valve is closing properly while off, but come to think of it, I didnt check while running. There is a second cable that goes down to the AOD, attached to the throttle, I think to control shifting. Seems to operate okay, but Im not sure what it is supposed to look like. WTF am I missing?