Re: 2004 F150 5.4 3v wont idle
I have a similar situation. My 2004 ford 5.4 engine blew up at 84000k, I purchased a 5.4 from a 2008 F150 Wreck. The experts told me all I need to do is keep the old intake and the rest is the same. I had some friends install it. Long story shorter it was never as the same, had less power than it did before. It also seemed to get worse over time. now two years later and many experts later it runs like crap, actually crap runs better. i still ry to drive it. 49cc scooters pass me. It chugs, tings, and farts, sometimes I can get up to 60kmhr within a block. Going up a hill or a bridge and it slows down. I have been looking for someone who can fix this but no luck. The last attempt was Walls Performance. He said he would put it on the Dyno and reprogram the computer. might cost up to $3000. I said no problem, whatever it takes. after a week I got the call, It doesn't seem to be working and He didn't have enough time to get into it so he gave up and thats it. I picked it up, he was nice enough not to charge for his time, but now it is even worse than ever. I started looking for a new engine. found a 2004 rebuilt engine. $3800. I thing it is my original block I had dropped off as a core when i purchased the 2008. Big problem is it doesn't come with any sensors, spark plugs, injectors, coils, or intake. If I do another install it could still be the same problem. Anyone want to buy a used Ford. BTW what is the sensor in the oil pan. When I had it installed they never noticed the new motor never had the sensor in the oil pan so they just left it hanging.