My 2007 Ford Expediation was missing intermittenly. I changed the plugs and now it runs worse then ever. Any ideas???

Asked by Mar 12, 2012 at 07:46 PM about the 2007 Ford Expedition XLT

Question type: Maintenance & Repair

I took it to Auto Zone and they used their machine to check and said that cylinder #4 was misfiring.  Then they said it had multiple misfires.  I even changed the coil on top of cylinder #4 and #1 which did no good.

3 Answers

955

There are a few things that could be the problem. The COP on these engines have always been a problem on the Pre 2005 engines. You couldhave gotten a bad coil. It does happen. I would have allthe coils tested for resistance. I would have all the boots visually looked at for damage. I would also replace all the plugs, and do a thurough tune up. I would also check the injectors. You could have one that is not fully opening or has been gummed up. You might want to go out and buy a coupe of cans of injector cleaner for the next 2 fill ups. You may need to replace and injector if it is acting up.

2 of 2 people found this helpful.
15

Take to Auto Zone or Advanced Auto Parts ask them to check it out with their reader. It should tell you which Coil Pack is bad. Could be a plug wire.

1 of 1 people found this helpful.
20

I have this EXACT problem right now!! Have you rectified it?? What have you found to be the problem??

2 of 2 people found this helpful.

Your Answer

Add photo

Related Questions

Expedition

Looking for a Used Expedition in your area?

CarGurus has 25,000 nationwide Expedition listings starting at $1,495.

ZIP:

Search Ford Expedition Questions

Ford Expedition Experts

#1 T_S_T
T_S_T
Reputation 1,910
#2 Larry Sturgis
Larry Sturgis
Reputation 1,330
#3 lightGear
lightGear
Reputation 1,010
View All

Related Models For Sale

Used Chevrolet Tahoe
587 Great Deals out of 32,526 listings starting at $1,500
Used Ford Explorer
997 Great Deals out of 70,222 listings starting at $997
Used Chevrolet Suburban
262 Great Deals out of 19,847 listings starting at $1,800
Used Lincoln Navigator
99 Great Deals out of 5,846 listings starting at $1,900
Used Ford F-150
2,067 Great Deals out of 208,216 listings starting at $290
Used GMC Yukon
388 Great Deals out of 20,074 listings starting at $2,495
Used GMC Yukon XL
210 Great Deals out of 12,645 listings starting at $2,000
Used Cadillac Escalade
208 Great Deals out of 11,031 listings starting at $3,000
Used Nissan Armada
154 Great Deals out of 8,823 listings starting at $3,000
Used Toyota Sequoia
130 Great Deals out of 5,451 listings starting at $2,900
Used Dodge Durango
286 Great Deals out of 21,318 listings starting at $1,495
Used Ford F-250 Super Duty
324 Great Deals out of 46,193 listings starting at $599
Used Cadillac Escalade ESV
112 Great Deals out of 5,418 listings starting at $1,995
Used GMC Acadia
536 Great Deals out of 46,749 listings starting at $4,499

Used Cars For Sale

2017 Ford Expedition XLT For Sale
3 Great Deals out of 2,339 listings starting at $31,000
2016 Ford Expedition XLT For Sale
11 Great Deals out of 161 listings starting at $25,990
2015 Ford Expedition XLT For Sale
38 listings starting at $23,750
2014 Ford Expedition XLT For Sale
4 Great Deals out of 61 listings starting at $17,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.