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Ford Expedition Stalling, Surging and Vibration

65 messages,  Last post on Oct 21, 2009 at 9:04 AM

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#46 of 65 Re: 06 EXPEDITION STALLS/POWER LOSS [wedo43] by tommygunn23 Apr 25, 2008 (6:23 am)
Replying to: wedo43 (Apr 23, 2008 3:05 pm) it happen twice while cornering, once while getting off hwy and the other time when making a right turn. the other times have been on straight-a-ways. Replies to this message: orlando32817 (May 04, 2008 5:51 am)
#47 of 65 Re: stalling 03 Expedition...HELP! [bbrebner] by tommygunn23 Apr 25, 2008 (6:28 am)
Replying to: bbrebner (Aug 18, 2006 8:55 am) I having the same problem with my 06 Expedition. I'm new to the site....can you detail the diagnosis and the fix for me PLEASE?????
#48 of 65 hesitation & stalling by wedo43 Apr 26, 2008 (5:36 pm)
Hi guys, I just put my 03 in the shop Monday and had the manifold, plugs and plug boots replaced. Ran great for the 1st time in a long time. Did all this to get it in shape before a 12 hr family trip. It rained hard last wed's night and we began our drive early Thurs morning. Within the 1st 5 miles it was starting to stutter again and within the hour it was running so bad it was missing on at least 1 cylinder.   I did alot of research on this and other forums. Common causes for this problem include 1- A wire that runs along the outside of the power steering pump rubs its jacket off causing an intermittent short, most notably when turning. This can be found under the truck on the drivers side of the car. I traced mine out and. while I could see where it would happen, the was no rub through. 2- A cracked manifold, leaking coolant ports and or leaking manifold gaskets. Can cause an air leak and additional moisture that can get inside the plug boots and into the coils. Mine did have all the above. 3- Due to additional hoses on the passenger side there is greater condensation that quite often seeps into the plug boots and coils. This (condensation in the boots and coils) is the most common problem and now that I think back on it, I had been experiencing episodes like this after big rainstorms for about a year.   Now that a couple of dry days have passed, it's starting to dry out and run better. I went on ebay and ordered a new set of coils complete with new boots for $75.00 and freight. I'm going to remove the existing set and dry them out thoroughly before the drive home then install the new ones when I get home. I'll keep you informed on results but after reading all the postings, I'm pretty confident this will completely fix the problem.   My suggestion would be to search ebay for Ford Coil Packs, order a set and have a local mechanic you trust put them on . In the Dallas area I would expect to pay less than $200.00 for this task at the local Kwik Kar.   It's a cheap fix that more than likely will solve your problem. If not, it was a heck of alot cheaper than taking to the dealer. He'd replace the manifold the plugs, coils and boots to the tune of $2-3K. Hope this helps, wedo43 Replies to this message: wedo43 (Aug 15, 2008 8:40 am) rryder3 (Aug 13, 2009 5:13 am) wedo43 (Aug 13, 2009 5:49 am) rryder3 (Aug 13, 2009 9:11 am)
#49 of 65 Re: Codes [wedo43] by orlando32817 May 04, 2008 (5:35 am)
Replying to: wedo43 (Apr 19, 2008 3:12 pm) sorry not to answer sooner but i dont check this email often. Go to ebay and search NEW IGNITION COILS 97-05 FORD EXPEDITION V8 DG508 (8) they are sold by global-automotive. $95 for eight units. I wouldnt have done the intake manifold though if your idle was perfect like mine. The packs are the same for 5.4/4.6L.
#50 of 65 Re: 06 EXPEDITION STALLS/POWER LOSS [tommygunn23] by orlando32817 May 04, 2008 (5:51 am)
Replying to: tommygunn23 (Apr 25, 2008 6:23 am) if you otherwise can accelerate most of the time normally but occasionally lose it during turns or some straitaways. then its the coils. go to ebay change them all. NEW IGNITION COILS 97-05 FORD EXPEDITION V8 DG508 (8). It could also be the pcm needs relflash or the oil sender unit wire running near the power steering pump is chaffing and short to ground but I doubt it. By they way I figured out why the coils confuse the pcm. first if the missfire is occasoinal intermittant then the pcm wont give a code. Also if you get a bad enough misfire for the moment the pcm turns off that fuel injector to that cylinder and makes the truck run like crap even at idle. Then I found if you turn the truck off and restart the problem will go away and run ok (idle /accelerate) till the occasional misfire occurs again to confuse the computer. If any of you see that problem then change the coils.
#51 of 65 Re: STALLING 2003 FORD EXPEDITION. [masinils] by orlando32817 May 04, 2008 (6:25 am)
Replying to: masinils (Feb 07, 2007 1:34 pm) its the coils in your case i am sure now see my other posts in this thread.
#52 of 65 Re: 06 EXPEDITION STALLS/POWER LOSS [tommygunn23] by orlando32817 May 04, 2008 (6:37 am)
Replying to: tommygunn23 (Apr 23, 2008 12:27 pm) I Have a new problem now where my 2003 doenst hesitate like before after 9 months but cant accelerate over 3000 RPM even when the foot to floor. I changed the coils/plugs again but didnt help. I believe now the fuel pump is the problem since I get 60 psi at idle and about 45 psi under hard acceleration. Note this happens all the time i accerate hard not just occasionally like before. I did the other checks from my earlier post first and missed doing the pressure test. The pressure shouldnt change that much i think and it shouldnt be the reverse of what i measured before (40psi idle and 60 hard accel or low vacuum conditions). Will diagnose the fuel pump current / flow based on what I found at other sites when I get a chance.
#53 of 65 Problems with 2006 Expedition? by mschmal Jun 16, 2008 (4:35 am)
Are you still under warranty?   Mark Replies to this message: faisal56 (Aug 14, 2008 7:17 pm)
#55 of 65 Re: Problems with 2006 Expedition? [mschmal] by faisal56 Aug 14, 2008 (7:17 pm)
Replying to: mschmal (Jun 16, 2008 4:35 am) nah

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