Will a bad computer module on a 1999 ford expedition make the ignition coil not spark

Asked by Oct 26, 2014 at 11:30 AM about the 1999 Ford Expedition 4 Dr Eddie Bauer SUV

Question type: General

I Checked the plugs and wires changed
ignition coil two of the plugs still not firing
why?

1 Answer

62,905

Check the compression on those two cylinders. If they're next to each other and both have low compression suspect a bad head gasket. If the compression is good it could be a bad ignition control module or defective coil pack. Bad fuel injectors are also a possibility. Check the spark plugs for gas on those two cylinders as well. HTH. -Jim

Your Answer

Add photo

Related Questions

Search Ford Expedition Questions

Ford Expedition Experts

#1 T_S_T
T_S_T
Reputation 1,800
#2 Larry Sturgis
Larry Sturgis
Reputation 1,260
#3 lightGear
lightGear
Reputation 1,010
View All

Related Models For Sale

Used Chevrolet Tahoe
623 Great Deals out of 27,680 listings starting at $600
Used Ford Explorer
770 Great Deals out of 74,196 listings starting at $750
Used Chevrolet Suburban
384 Great Deals out of 18,583 listings starting at $2,000
Used Lincoln Navigator
87 Great Deals out of 5,470 listings starting at $3,485
Used Ford F-150
2,442 Great Deals out of 209,895 listings starting at $895
Used GMC Yukon
415 Great Deals out of 16,310 listings starting at $2,095
Used GMC Yukon XL
242 Great Deals out of 12,016 listings starting at $2,400
Used Cadillac Escalade
245 Great Deals out of 10,543 listings starting at $1,900
Used Dodge Durango
252 Great Deals out of 23,104 listings starting at $1,500
Used Ford Excursion
10 Great Deals out of 708 listings starting at $3,995
Used Ford F-250 Super Duty
388 Great Deals out of 47,540 listings starting at $400
Used Toyota 4Runner
298 Great Deals out of 20,528 listings starting at $1,850

Used Cars For Sale

2017 Ford Expedition For Sale
15 Great Deals out of 13,184 listings starting at $31,990
2016 Ford Expedition For Sale
114 Great Deals out of 2,317 listings starting at $24,977
2015 Ford Expedition For Sale
32 Great Deals out of 980 listings starting at $20,699
2014 Ford Expedition For Sale
34 Great Deals out of 773 listings starting at $20,797