On 99 expedition how can you prevent moisture from ignition coil and plugs?


Asked by Sep 10, 2016 at 05:19 PM about the 1999 Ford Expedition 4 Dr XLT 4WD SUV

Question type: Maintenance & Repair

Ignition coil failing causing rough running engine and misfiring. Appears to be
caused from moisture (water/ oil). How can I prevent this problem on 99
expedition? Are there gaskets one covers available?

2 Answers


If you can (not sure on that model coil pack but one f150) electric spray contact cleaner to dry it out and apply dielectric grease to keep it out, now if is or has access to your engine oil and needs a gasket which I do not know of then there must be another procedure to take.

1 of 1 people found this helpful.

Thanks, Mark this sounds like a plan. Certainly worth a shot.

Your Answer

Ford Expedition Experts

  • #1
  • #2
    Larry Sturgis
  • #3
View All

Related Models For Sale

Used Chevrolet Tahoe
633 Great Deals out of 37,457 listings starting at $795
Used Ford Explorer
830 Great Deals out of 64,217 listings starting at $2,000
Used Chevrolet Suburban
451 Great Deals out of 22,351 listings starting at $2,495
Used Lincoln Navigator
103 Great Deals out of 3,596 listings starting at $2,900
Used Ford F-150
2,558 Great Deals out of 220,223 listings starting at $1,222
Used GMC Yukon
375 Great Deals out of 18,852 listings starting at $2,500
Used GMC Yukon XL
233 Great Deals out of 12,691 listings starting at $2,700
Used Cadillac Escalade
253 Great Deals out of 11,984 listings starting at $2,995
Used Dodge Durango
231 Great Deals out of 24,568 listings starting at $1,500
Used Ford Excursion
8 Great Deals out of 785 listings starting at $4,395
Used Ford F-250 Super Duty
371 Great Deals out of 44,905 listings starting at $1,600

Used Cars For Sale

2018 Ford Expedition For Sale
6,962 listings starting at $41,033
2017 Ford Expedition For Sale
196 Great Deals out of 5,083 listings starting at $22,300
2016 Ford Expedition For Sale
65 Great Deals out of 1,283 listings starting at $18,991
2015 Ford Expedition For Sale
27 Great Deals out of 900 listings starting at $18,599
2014 Ford Expedition For Sale
46 Great Deals out of 921 listings starting at $12,990

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.