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2000 Expedition 5.4 L runs like junk

20 messages,  Last post on Nov 22, 2009 at 5:34 PM

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#11 of 20 by jrobitaille Feb 23, 2009 (5:02 pm)
Actually you can get MSD high output coils in Canada for $60 which is less than the dealer and better than the cheaper offshore units out there. Have heard of increases in gas mileage and quite a bit of throttle response and torque
#12 of 20 why always #1 by zacksterus Mar 09, 2009 (4:25 pm)
My 2003 expedition 5.4 keeps saying coil #1 bad. I replaced all spark plugs and all 8 coils and i still get message that #1 is bad. I've replaced it 3 times and still same thing. What is my dumb butt missing? My next step is to get ripped by the Ford shop, so any help would be appreciated. I love the truck, just hate that it's not running right. Replies to this message: zacksterus (Mar 10, 2009 4:11 pm) tidester (Mar 10, 2009 8:56 pm)
#13 of 20 Re: why always #1 [zacksterus] by zacksterus Mar 10, 2009 (4:11 pm)
Replying to: zacksterus (Mar 09, 2009 4:25 pm) UPDATE: Ok, I don't understand this but I'm not complaining about it. After getting really aggrivated, I disconnected the battery and completely disconnected the computer. I was going to buy new computer, but got side tracked for about 30 minutes and needed to go somewhere. So, I reconnected the computer and the battery and the truck has been running like new ever since. No more roughness, no engine light, runs like a charm. Now I just wonder...still not complaining..but wonder. Replies to this message: tidester (Mar 10, 2009 8:56 pm)
#14 of 20 Re: why always #1 [zacksterus] by tidester HOST Mar 10, 2009 (8:56 pm)
Replying to: zacksterus (Mar 10, 2009 4:11 pm) I don't have any idea how often it happens but, as with any computing device, a car's electronic control unit can sometimes get confused. These days, the programming can be fairly complicated so these problems may arise more frequently. You may want to check with your dealer to see whether any upgrades to the software are available.   tidester, host SUVs and Smart Shopper
#15 of 20 Re: 2000 Expedition 5.4l runs like junk [jrobitaille] by ayakata Mar 15, 2009 (11:03 pm)
Replying to: jrobitaille (Oct 21, 2008 4:50 pm) Hello there, please can you or anyone please kindly help with my situation? I have a 1999 5.4L expedition with the same or similar situation. I have misfire with coil #4 and I have the coil replaced but the engine light refuse to go off. I then replaced my oxygen sensors, the check engine light went away for a while. Later my #4 spark plug housing tread gone badly and the spark plug became loose and this trigger the check engine light to came back on. I have to get a spark plug housing kit from auto shop and replace the spark plug and the coil again and since then the check engine light wills sometime flashes, and sometimes it will stays on but it is currently off at the moment.   The most annoying and big concern problem however is that the truck runs sluggish at times which is very very annoying. I have taken it to several shops but the dealer, because according to all the mechanics who has diagnosed or look at it says there is nothing wrong with it according to the test while the last dealer I visited said that I will first of all pay $150 before they can take a look at the problem. I have read several discussions on these trucks but I have never disconnected the battery on the truck before as per some people suggestion on this forum. I am just hoping that you or anyone on this forum might have a good suggestion or know exactly what I need to do. The truck however doesn’t run sluggish all the time but sometimes, and currently the check light engine is off. Please advise according. Also, sometimes the plug (#4) gets loose and has to be tightening again. Any help will be greatly appreciated Thanks much in advance and God bless
#16 of 20 Sevice Engine Light by camoking Aug 24, 2009 (7:19 am)
Hello All   I have a 2000 Ford Expedition ( suv ) with a 5.4 Trinton V8 engine and it has 106,000 miles well the Sevice engine soon light started going one fr a week then off now it has been on solid for over 2 weeks and running like crap, I live in MA and have called 4 or 5 places that service the fords and have been told just to tune it up can run anu where between $1,000 to $1,800 which I can't afford at the moment.   they keep telling me coils are bad and the list goes on and on so with me at the mercy of some good and bad techs can anyone here please help me and let me know what is a basic toonup even if all coils have to be replaced.   thank you & I love the site.   Bob from Boston.
#17 of 20 Bob by alwaysfords2 Aug 24, 2009 (12:50 pm)
You can go to most discount auto parts stores and they will read the code for you and tell you what that might indicate. If it is coils, and it might be, go to ebay and buy the whole set for $90 rather than the dealer where you will pay $00 each. Use the Ford plugs.
#18 of 20 Help 2000 F-350 5.4 Hesitates by fordtruckguy24 Aug 30, 2009 (12:27 pm)
I have a 2000 f-350 the check eng. light is not on,no codes to read just yesterday it started hesitating at idle checked all connections,boots,etc. Replaced the IAC about a month ago,,,with no eng. light on don't know what to do,,discc. injectors,as the truck was running no difference,,,this is my work truck any info would be greatly appreciated,,,Thanks
#19 of 20 CEL by alwaysfords2 Aug 31, 2009 (9:31 am)
It may still have codes being stored but not enough to trip the CEL.
#20 of 20 Expedition that runs like crap by ktomlinson Nov 22, 2009 (5:34 pm)
I have a 2006 Expedition with a 5.4 in it. It started getting sluggish so I thought that it just needed plugs being it had 90,000 on it. That didn't fix it and the problem, which was no power, rough idle and bogging down, just gradually got worse. I decided to change the fuel filter and when I pulled it rusty water ran out of the filter. I thought for sure this was my problem so I pulled the tank and cleaned everything good. I put it back together and it still didn't fix it. It misses at idle, won't hardly pick up speed and when it does it will only go 40-45mph. The only code it has set is P0174 bank 2 running lean. I found the fuel pump was not putting up the pressure it should, changed that, and it still has not fixed it. Can someone please give me some insight on what it may be now. Thanks

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