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 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
27,045

3 coils on the same cylinder?

2 out of 2 people think this is helpful.
Tracy Hooks
16,955

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
685

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

Tracy Hooks
16,955

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

Add photo

Related Questions

F-150
Looking for a Used F-150 in your area?
CarGurus has 196,339 nationwide F-150 listings starting at $1,600.
ZIP:

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 4,420
#2 dandyoun
dandyoun
Reputation 3,410
#3 FordNut
FordNut
Reputation 2,040
View All

Related Models For Sale

Used GMC Sierra 1500"
735 Great Deals out of 58,450 listings starting at $1,995
Used Dodge Ram 1500"
582 Great Deals out of 13,965 listings starting at $699
Used Toyota Tacoma"
429 Great Deals out of 20,203 listings starting at $1,995
Used Ford F-250"
586 listings starting at $4,075
Used Ford Mustang"
324 Great Deals out of 47,462 listings starting at $1,100
Used Jeep Wrangler"
643 Great Deals out of 54,931 listings starting at $1,500
Used Ford Explorer"
605 Great Deals out of 51,047 listings starting at $1,500
Used Ford Ranger"
261 Great Deals out of 7,096 listings starting at $1,195
Used Chevrolet Tahoe"
573 Great Deals out of 31,389 listings starting at $1,500

Used Cars For Sale

2014 Ford F-150 XL LB For Sale
8 Great Deals out of 130 listings starting at $17,988
2013 Ford F-150 XL LB For Sale
3 Great Deals out of 39 listings starting at $8,900