Search results

  1. J

    99 5.4l low rpm/low speed cruising engine loping, surging

    Not the torque converter. It just stumbled when I went to take off. So I was thinking today after I was driving in the nasty snow/sleet and she was bucking pretty good cruising through town that maybe I should pull the egr vacuum off. So I did and plugged it. Hasn't stumbled since. I'll test it...
  2. J

    99 5.4l low rpm/low speed cruising engine loping, surging

    EGRs were deleted starting in 2000 I think, just a few made without at first and progressed until something like 2007 on the 2 valve where most had no EGR. I just don't understand how the heck they just eliminate them? If its just a programming thing or what... I though can phasers were the...
  3. J

    99 5.4l low rpm/low speed cruising engine loping, surging

    Yeah I actually doubt a tune was put on, putting NoS on a stock engine is a poor choice I think, especially at 190k miles. I'm just assuming someone did because when I cleaned the MaF I found a hole drilled up through the bottom to the maf and I guess dry systems are installed that way.I'm gonna...
  4. J

    99 5.4l low rpm/low speed cruising engine loping, surging

    The old engine had NOS I think. Not the engine I put in. Just wondered if maybe the idiot tuned it and that's causing problems. I ran premium and no change. EGR cleared up, valve was cleaned and tested when I put the motor in. I put new exhaust pressure hoses on as one was rough. Code is gone...
  5. J

    99 5.4l low rpm/low speed cruising engine loping, surging

    I checked the cylinders. I tore the whole motor down to the heads. I left them on. Everything was cleaned spotless including the throttle body. No vacuum leaks from what I've heard or checked, I mean not sure if starting fluid is the best test but everything seemed good when I put it all...
  6. J

    99 5.4l low rpm/low speed cruising engine loping, surging

    I picked up a nice 99 Expedition for cheap with a blown 5.4. I swapped in a 2004 2 valve. I used my aluminum intake as the plastic one had blown up. Truck had been in an accident. Assuming it backfired on impact? Anyways I had to remove a chuck of plastic from one cylinder but I didn't see any...

Latest posts

Members online

Total: 2,645 (members: 4, guests: 2,641)

Forum statistics

Threads
57,016
Posts
535,899
Members
54,713
Latest member
Budman55

Share this page

Top