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  1. MattP1976

    Aftermarket Fuel Pump? Any luck?

    Well, I won't ever win a race in it, but it runs MUCH better. It doesn't seem to struggle accelerating to highway speed.
  2. MattP1976

    Aftermarket Fuel Pump? Any luck?

    After driving it some more, I ended up with the 171/174 codes. I went ahead and replaced the Amazon special pump with a Delphi unit and a motorcraft fuel filter. Now it has 53 psi at idle. I'm betting I'll be good now. I'll be test driving shortly.
  3. MattP1976

    Aftermarket Fuel Pump? Any luck?

    Yessir. I had to borrow a smoke machine to get the evap system under control. I guess I'll be borrowing one again.
  4. MattP1976

    Aftermarket Fuel Pump? Any luck?

    It doesn't really feel like it's bogging down but it's never really had much power being a 4.6. I used an Amazon special fuel pump that I installed into my assembly. My concern is that it's not a 171/174 code. It's only showing lean on one bank.
  5. MattP1976

    Aftermarket Fuel Pump? Any luck?

    Update: under load the pressure drops to 25-27 psi. I left the gauge hooked up and went driving down the highway. Hard acceleration made the pressure drop from 40 to 25-27.
  6. MattP1976

    Aftermarket Fuel Pump? Any luck?

    It actually goes down when I rev it. I just performed the fuel pressure test again. 40 psi at idle drops to 35 when I rev it. I'm going to leave the gauge hooked up and drive it on the highway. Freeze frame shows the lean condition detected under 80% load or higher at highway speeds.
  7. MattP1976

    Aftermarket Fuel Pump? Any luck?

    I replaced the fuel pump on my 04 4.6 back in July along with the fuel filter due to p0171/174 along with confirmed low fuel pressure. Car ran great and I drove it to Destin and back to Houston no problems. I used an aftermarket fuel pump through Amazon which may or may not have been a mistake...
  8. MattP1976

    p0315 Crankshaft Position Sensor Variation Not Learned

    The engine had about 90000 miles on in it. I did not see any damage to the tone ring. The code usually takes a few drive cycles to come back. I did not do the ECU relearn procedure. Should I clear the codes and try the procedure?
  9. MattP1976

    p0315 Crankshaft Position Sensor Variation Not Learned

    2004 4.6 Expedition with a P0315 code. Runs fine. I replaced the crank sensor and reset the codes. I inspected the wiring from the sensor with no issues found. I replaced the engine last year with a used motor. I replaced all the timing components at that time (chains, guides, tensioners)...
  10. MattP1976

    Looking for 2004 PCM Pin Diagram

    How did you know to replace the #1 COP with no codes? I'm experiencing the same issue on my 04 4.6. I've replace the crank sensor and found no issues with wiring. I only have the PO320 code but I'm not having any driveability issues. No stalling, bucking/jerking, etc.
  11. MattP1976

    Fuel tank leak on '04 Eddie Bauer

    My 04 XLT is doing the same thing. I attempted a repair with JB Weld's Water Weld product. It still seems to be leaking vapor although the actual fuel leak appears to be fixed. I've searched for replacement tanks with no luck. They don't make them. I'm thinking it's a known problem but we...
  12. MattP1976

    2004 Expedition Timing Chain Tensioner Questions

    Update: I pulled the front cover to replace the plastic tensioners with the cast iron set. I noticed some wear on the tone wheel for the crankshaft. After inspecting the wheel and the front cover, it appears as though the harmonic balancer was not far enough up on the crankshaft to hold the...
  13. MattP1976

    2004 Expedition Timing Chain Tensioner Questions

    I pulled the pan and cleaned out the pieces. I also took extra care to clean out the screen on the pickup tube.
  14. MattP1976

    2004 Expedition Timing Chain Tensioner Questions

    I have an 04 Expedition with a 4.6 swapped from an 04 Police Interceptor. I replaced the chains, guides, and tensioners when we did the swap. I used aftermarket tensioners. I did NOT replace the oil pump. The problem now is that after the vehicle warms up, I'm hearing what sounds like time...
  15. MattP1976

    5.4L rear main seal question

    Disregard. I figured it out. : )
  16. MattP1976

    5.4L rear main seal question

    I know it's an old post, but did you have any issues removing the old rear main? Did you first remove the retainer plate? I took the plate off, but the rear main seams stuck to the crankshaft.
  17. MattP1976

    4.6 Police Interceptor 2004

    I bought it broke. It was a gamble. My profile pic is of the guides or what was left of them. I cleaned all the pieces out of the oil pan and took a shot. I've also got low performance on cylinder 4 according to a power balance test. I haven't run a compression test yet.
  18. MattP1976

    4.6 Police Interceptor 2004

    My 2004 4.6 XLT has about 230k miles on it. It's making some death rattle noises. I've already replaced the timing set due to the guides completely coming apart. My question is can I use a 4.6 out of a 2004 police interceptor Crown Vic? Both vehicles have a W for the 8th digit in the VIN. I...
  19. MattP1976

    Where do I find a NEW fuel tank?!

    Nope. Nothing from Ford, O'Reily's, or Autozone.
  20. MattP1976

    Where do I find a NEW fuel tank?!

    My fuel tank is leaking at the front fitting where the evap hose connects to the tank. Went to the wrecking yard and found another tank and of course, it's leaking in the same place. Ford does not make that tank anymore. I'd like to replace it with a new piece. Has anyone had any luck...
  21. MattP1976

    p0442 Common Causes

    It's leaking from the vent where it actually attaches to the tank. Has anyone ever repaired one? I've never seen one leak like that. Gas is coming out between the white part around the edge where the line connects.
  22. MattP1976

    p0442 Common Causes

    I think it's the connection at the front of the tank (tank vent?) that's leaking. Any suggestions on repairing a quick connect evap line?
  23. MattP1976

    Rough idle/shaking

    Done and done. I replaced the coil and the plug. Then I swapped injectors with another cylinder. Still shows low on #4 at idle but clears up on acceleration.
  24. MattP1976

    p0442 Common Causes

    Can anyone point me in a good direction besides the fuel cap? Is there a common evap leak area on these SUV's?
  25. MattP1976

    Rough idle/shaking

    I've got a power balance issue on #4. Shakes at idle, weird noises intermittently, no trouble codes (besides the po442), runs great at highway speed, and the power balance shows that #4 clears up above 1000 RPM. I'd definitely like to know where the flywheel came into play! 4.6 XLT

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