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  1. E

    03 5.4L valve cover bolt specs

    Does anyone happen to know the exact specs of the threaded part of the valve cover bolt? Thanks!
  2. E

    03 4x4 Wheel hub replacement - brand recommendations?

    I was wondering if anyone could recommend a good aftermarket wheel hub assembly. I know that some of them have issues with the dust covers fitting properly. Any info you can share would be appreciated. Thanks!
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    03 5.4 4x4 - "High Temp Low Oil" light related to no crank?

    After I redid the heads on this vehicle, it ran very well for about 400 miles. Then it developed the intermittent stalling-while-driving problem. Then it stalled when idling. Now it won’t crank when the key is turned. Something I should mention is that after the rebuild, the only issues were...
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    03 5.6 4x4 - PCM reprogramming cost estimate?

    Any idea what would be a reasonable price to have the PCM reprogrammed? (don't ask why I need this done...too embarrassed to say, at the moment) I can't use a PCM rebuild service on the internet, owing to a really bad previous experience. So, I'm wondering about what your experience has been...
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    03 5.4 - Idle Air Control Valve or...?

    The Exp has been running great since the head gasket replacement (getting 18-19 mpg on the highway). Th only lingering issues are two codes, that are probably not related to the issue I'll describe below (both the C1284 and P0552 are for low voltage to the oil pressure sensor and PS pressure...
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    03 5.4L 2V - new oil pump won't prime

    I just completed reassembling the motor after doing the head gaskets. I followed FordTechMakeuloco's procedure for priming the pump (crank motor with crankshaft position sensor unplugged until pressure guage shows pressure). I did this several times with no change to the pressure guage. There...
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    2003 5.4L - Radiator leaking after reassembly

    I hope that this is the last mishap that I need to share with you all. After the head gasket job, I had the whole motor reassembled. Today I poured in a gallon of antifreeze and it immediately leaked out of the bottom of the radiator, where the two tranny lines enter it. When I originally...
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    2003 5.4L - Baffled by power steering hose

    I hesitate to post this because of the low probability that this problem will translate well into a forum post. But I'm at the end of my rope with this, and it's the only issue standing in the way of me completing reassembly after a head gasket repair. I removed the PS pump and pressure line...
  9. E

    Overtorqued Head Bolts

    I woke up at 2am this morning and realized that I had made this ridiculous mistake when working on my 03 5.4 yesterday. For the second and third stages of torqueing, I torqued 180 degrees per turn instead of 90. Can't believe I did that. But, what's done is done. I'm going to pull the head, and...
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    03 5.4L (2 valve) head gasket replacement - Disassembly questions

    I've decided to try to give myself as much space as possible to do the head gasket job, which means I am now trying (not super successfully) to try to remove the front grill and bumper. Headlight assemblies are out. The clips on the grill seem like a nightmare to try to remove without ruining...
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    03 5.4L (2 valve) head gasket replacement - parts list

    As descibed in this thread, my 03 blew a head gasket. As the motor has 185K, I figure I'll replace both gaskets at the same time. I plan on taking the long, slow route, by removing the radiator, etc. to more easily access the heads. There are various parts that I'll replace while I have easy...
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    03 5.4L Eddie Bauer - P1285 code and others

    Here is the brief backstory: - We live in area with cold climate in the winter. In December and January, our 03 would occasionally throw a P0301 (cyl 1 misfire) along with a 0316 (engine misfire on start up). I would clear the codes and they would not return for some days. - I replaced the cyl 1...
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    03 Eddie Bauer window regulator installation

    Thanks to some generous souls on YouTube I have figured out how to fix the driver's door window regulator on my 03. I do have one question for those of you who have successfully completed this fix. In my case, the glass came completely out of the clips (and some pieces of the regulator broke...
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    2003 5.4L - Transmission cooler + other upgrades for towing?

    Never having towed anything greater than a 4x8 utility trailer, I wanted to make sure I had all my bases covered before towing a travel trailer (3000-3500 lbs.) with my 2003 expy. I have the 4R70W transmission. I'm guessing a transmission cooler would be a good idea? If so, any recommendations...
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    03 5.4L Oxygen sensor replacement question

    I'm looking to replace all 4 of my O2 sensors. I'd like to go with Bosch sensors. However, distinguishing between the correct upstream unit and correct downstream unit is not easy (for me at least). For example, for my vehicle, Amazon shows the Bosch 15717 part as being downstream. You go to...
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    2003 5.4L 4x4 - Fuel Feed or Return Line?

    I'm asking this because the Hayne's manual lacks this information and because I have seen contradictory information on the internet. Some sites say the fuel pressure regulator on the fuel rail is directly connected to the feed line, others say the return line is the one connected to the...
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    2003 5.4L // DPFE Sensor Electrical Question // Repeated DPFE Failures

    I thought I had multiple DPFE failures, but I now think it is the wiring or Powertrain Control Module. I just ran a test on the signal wire(the top one of the three in the photo). According to the Haynes manual, with the engine running cold, that wire should show .2 to .7 volts. When the engine...
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    2003 5.4L 4x4 - low RPM shudder / hesitation / poor MPG

    Recently purchased a used 2003 Exp Eddie Bauer, 4x4, 5.4L with 181k miles. Recent maintenance: - plugs and coils - all EGR related components - cleaned MAF - fuel filter - changed all fluids to spec Problem: This began after I changed (drain & fill) the tranny fluid so I am hoping it isn't...
  19. E

    '03 Expedition 5.4L Power Steering Pump / Pressure Line

    Hello! I am in the process of removing a very leaky power steering pump. I would like to remove just the pump and leave the pressure line connected to the steering rack. Is this possible? Or is the best/easiest way to do this to remove the pump and leave it connected to the pressure line when...

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