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  1. S

    flashing CEL, tow or limp home?

    My 98 XLT ruptured a heater hose and washed #3 and #4 spark plugs real nice and clean. I noticed immediately when it began to misfire. Two miles up the road it set P0303 as a pending code, five miles later the check engine light came on and flashed in short bursts. I drove it ten more miles...
  2. S

    4.6 Windsor thermostat housing will not seal

    This is actually my wife's F-150 but it's a very similar engine to the one in my Expedition. I replaced the thermostat due to it throwing P0125, indicating the stat stuck open. I got a stat and o ring from O'Reilly and installed them. It leaked like no other, so, absolutely fed up with the crap...
  3. S

    Murray/O Reilly compressors just junk?

    I have put two Murray compressors on my 98 Expedition last summer. The first was rebuilt and bad straight out if the box. It refused to develop high pressure or any kind of suction; in residential AC terms this is called "inefficient compressor". I changed it last June, this time springing for a...
  4. S

    Acid damage to compressor?

    This is the third compressor that's gone bad in my '98 Expedition. The one that was on it was bad when I got it. I took it to a mechanic to have a new one installed; they put a NAPA Cold Power and it lasted a little over two years. I replaced it myself with a rebuilt Murray unit that lasted...
  5. S

    Ignition key cylinder disassembly

    A while back I picked several key cylinders from various Ford trucks at the local Pull A Part. Most of them were in the LOCK position, but one wasn't. I pulled the tumblers from the one that wasn't locked and swapped it into my 98 Expedition. The one it had was wearing out to the point it...
  6. S

    Healthy engine vacuum and DTC question

    TL;dr What's the vacuum supposed to be on a healthy 4.6 engine. Are there any serious DTC codes the truck might throw? The old truck threw me a P0401 yesterday which I traced back to either a faulty DFPE (sp) sensor or clogged ports. I replaced the sensor last year, which cleared that code...
  7. S

    Pre cut PATS I key

    Where would one order a pre cut PATS I ignition key? My keys and the pins in the cylinder lock switch are worn out to the point that I have to twist half a dozen times to get the ignition key to turn. I picked up two cylinders from a junkyard today and took the sidebar out of one of the...
  8. S

    How to drain the torque converter?

    I've looked around online and all I can find on draining out the torque converter is a video of someone flushing it by disconnecting the supply line to the transmission cooler. Honestly I thought he was gonna burn the tranny up in the process. My transmission filter evidently hadn't been...
  9. S

    Autolamp wiring

    I just got a set of factory fog lights from the junkyard. I noticed the required switch has an autolamp wheel on it, so I grabbed an autolamp module and the ported relay cover it needs while I was there. Uh oh, there's no plug for the autolamp module under my dash! I pulled the long panel...
  10. S

    Throttle sticking again

    When I got my Expedition, occasionally the engine would race when I had it in park or neutral. My scanner showed that the throttle position was varying between 18 and 22%. I cleaned out the throttle body as per advice given here and it settled to 18% consistently. The problem vanished... for a...
  11. S

    P0171 and P0174 caused by missing oil filler cap?

    Topic says it all. I fueled up in the bitter cold yesterday and checked all fluids as usual. It needed a little oil so I added some. This morning I got a CEL with P0171 and P0174. I looked under the hood to check vacuum hoses and saw I'd left the oil cap sitting on the washer tank. After putting...
  12. S

    1998 Expy with mp3 CDs or even CD-R?

    I noticed there are two styles of six disc CD changers in the 98 Expeditions. One has three sections to the door and the other has two. Both are Clarion models. I obtained the bracket to install one of the two section units into my center console and have been happily enjoying Christmas music...
  13. S

    98 4.6 throttle sticking again

    Sorry for the long post, short story is the throttle jams when it's almost closed and I need to know if I should coat the throttle body with something after I clean it out. About a year ago, I had problems with my throttle sticking open just far enough to cause the engine to race when I park...
  14. S

    98 XLT Rearview mirror compass/thermometer doesn't work

    The guys at a local auto glass place were kind enough to glue my rearview mirror back on the windshield for me even after closing time. The onl thing left noe is to find out why there seems to be no power to the compass and thermometer part of it. It also has no ability to dim itself either...
  15. S

    Lower ball joint replacement 1998 Expedition

    Is it possible to press the lower ball joints out of the control arms and replace just the ball joint? If it is, I don't see the need to replace a nearly $300 part despite what the Haynes book says to do. I don't know if the ball joints or control arms are original or not. BTW, thanks to...
  16. S

    To change the tranny oil or not?

    My 98 Expedition is running fine, but there's a whine during acceleration. My mechanic says it's definitely coming from the transmission and she is 80% certain it's caused by a clogged filter. She says there's a risk that the tranny could fail after changing the fluid IF the fluid hasn't been...
  17. S

    E4OD transmission?

    OK, I'm stumped. The Ford service guide that was in the glove box when I got my Expedition lists three transmission options in a table near the back of the book. They are: 4R70W, E4OD, and E4OD (4x4). Curious as to what tranny I have, I crawled under the truck one day and counted up the bolts...
  18. S

    Faulty TPS? (no CEL or codes)

    I just wanna confirm before I spend $20 on a part. My 98 Expedition's 4.6 liter engine will attempt to surge at idle and will race sometimes when it's put in Park. My scan tool, the Actron CP 9180, shows the "Absolute TPS" reading at 18.4 % when the engine is idling normally, and shows anywhere...
  19. S

    Long time Ford owner, 1st Expedition

    I'm here! :)
  20. S

    Best way to ditch the remote oil filter?

    The title pretty much says it. My hoses to the remote oil filter are leaking, and that's a $120 part at Autozone. I've read that there's an aftermarket part that allows the oil filter to attach to the engine in the spot one would expect to find it, but I haven't seen one for sale on any of the...
  21. S

    Just got a '98 Expedition

    Well, so far, it's been a good truck, except for the AC compressor blowing a seal (covered in another thread). I've done a lot of small stuff like replacing stabilizer links, replacing the battery and alternator, and bolting the left front hub to the vehicle the _right_ way. What am I in...
  22. S

    AC compressor removal

    I have a 1998 Expedition and the AC compressor seal has blown out. There were two loud pops from the right side of the truck, kinda underneath, and it blew this musty smelling fluorescent green oily stuff all over the tie rod, stabilizer, and the compressor. I know how to get the compressor...

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