What would cause the Check Engine light to kick on at about 5000 when accelerating. I have a High Flow Filter, JET Chip cat-less high flow Exhaust.... MSD Blaster Coil. Its a 1993 F-150 5.0 - non MAF..... AOD. Any ideas?

 

Lol, could be ANYTHING. Pull the codes......5000? wtf you pushing it that hard for? lol

 

Just burning out the carbon..... I dont normally push it that much.... Gas is gettin to expensive %)..... havent pulled the codes yet. But it flickers on and goes back off....

 

It only goes on when you push it to 5000?--if so...dont do it anymore :P

 

I know a 5.0 can goto 6k max.... but not sure of the full specs of the 93 5.0.... Power band and such. I dont do it too much. Wish I could find a 4.10 posi for it, or maybe convert to a 5 speed

 

Hello, i am new to this forum and to fords, so i am NOT trying to thread jack.
My 89 f150 has a 5.0 and wont go past like 4500 to 4700 R's and it starts to break up. Is this normal??? or do you have work done to your motor to get those kind of rrr's .

 

Little work done as described in the first block