1996 f 150 w/5.0 put in new coil only last about a day and goes out. What do I check

Mark Ledbetter
0

Asked by Mark Apr 18, 2014 at 12:59 AM about the 1996 Ford F-150 XL LB

Question type: Maintenance & Repair

I have put 3 coils on this truck same thing starts runs good for about a day then goes out
has new relay and new E.C.M

4 Answers

BoholMark
6,195

3 coils on the same cylinder?

1 out of 1 people think this is helpful.
Tracy Hooks
9,355

The module on the side of the distributor directly controls the coil. In your system (EEC-IV), the TFI module can fail and keep power to the coil constantly, burning it up.

magnum350
315

the ignition control module has a short in it. trust me replace it then you wont have no issues anymore

Tracy Hooks
9,355

That's what I said. There's a Schmidt Switch and a Darlington Amplifier in the module that runs a near 99% dwell on the coil anyway. It overheats the module and the coil. Ford didn't address this concern until the early 90's when they came out with a black TFI module that had an 8-bit microprocessor in it to keep coil saturation to less than 10 milliseconds. Just a little more than enough to saturate and fire the coil.

1 out of 1 people think this is helpful.
Best Answer

Your Answer

Related Questions

F-150
Looking for a Used F-150 in your area?
CarGurus has 183,804 nationwide F-150 listings starting at $1,500.
ZIP:

Search Ford F-150 Questions

Ford F-150 Experts

#1 dandyoun
dandyoun
Reputation 1,780
#2 OJ
OJ
Reputation 1,480
#3 kbro
kbro
Reputation 920
View All

Related Models For Sale

Used Dodge Ram Pickup 1500"
818 Great Deals out of 15,333 listings starting at $1,200
Used GMC Sierra 1500"
769 Great Deals out of 61,717 listings starting at $1,995
Used Toyota Tacoma"
461 Great Deals out of 18,052 listings starting at $1,895
Used Ford F-250"
748 listings starting at $2,495
Used Jeep Wrangler"
747 Great Deals out of 40,476 listings starting at $1,800
Used Ford Ranger"
340 Great Deals out of 7,108 listings starting at $1,200
Used Ford Mustang"
1,101 Great Deals out of 26,816 listings starting at $1,900
Used Ford F-150 SVT Lightning"
4 Great Deals out of 108 listings starting at $7,999
Used Ford Explorer"
1,139 Great Deals out of 45,189 listings starting at $1,499
Used Chevrolet Tahoe"
973 Great Deals out of 31,817 listings starting at $1,795

Used Cars For Sale

2014 Ford F-150 For Sale
65 Great Deals out of 135,482 listings starting at $19,000
2013 Ford F-150 For Sale
235 Great Deals out of 10,229 listings starting at $13,988
2012 Ford F-150 For Sale
266 Great Deals out of 5,980 listings starting at $11,500
2011 Ford F-150 For Sale
353 Great Deals out of 6,917 listings starting at $8,946