I have yellow spark.


Asked by Nov 17, 2015 at 05:00 PM about the 1994 Ford F-150 XLT 4WD Extended Cab SB

Question type: Maintenance & Repair

I have yellow spark I have change plugs,plug wires,distributer cap,rotor,coil
and the had ignition control module checked what's next?

2 Answers


Weak spark is a sign of ignition control module being bad,or coil,may need to check ground wire to coil to make sure it is good.

1 out of 1 people think this is helpful.
Bob Beaman

Distributor pick up coil down inside the distributor could be bad. ICM could also check good, but be bad. Needs more diagnosing. The link I posted may help.....http://easyautodiagnostics.com/ford/4.9L-5.0L-5.8L/ignition- module-tests-1

Your Answer

Add photo

Related Questions

  • Why is there no spark? 2 answers

    I have spark from coil to the distributor, but there is no spark going to the plugs.

    1979 Ford F-150


    Maintenance & Repair

  • we have no spark at the distibutor 24 answers

    truck died one day and would not fire up after that. we have replaced everything except the computer and done all res, tests and voltage tests on stuff. everything points to the pip module but its...

    1991 Ford F-150 XLT Lariat Extended Cab SB


    Maintenance & Repair

  • No Spark to Ignition coil 6 answers

    There is no spark to the igntion coil

    1977 Ford F-150


    Maintenance & Repair

  • Spark plug diagram 2 answers

    Wiring diagram for spark plugs

    1993 Ford F-150


    Maintenance & Repair

  • Spark going to plugs 1 answer

    I put new coil new cap rotor and still no spark

    1993 Ford F-150 XL 4WD Extended Cab SB




Looking for a Used F-150 in your area?

CarGurus has 216,425 nationwide F-150 listings starting at $1,000.


Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
Reputation 6,010
#2 dandyoun
Reputation 3,890
#3 tennisshoes
Reputation 2,300
View All

Related Models For Sale

Used GMC Sierra 1500"
1,021 Great Deals out of 56,344 listings starting at $2,400
Used Dodge Ram 1500"
510 Great Deals out of 13,856 listings starting at $995
Used Toyota Tacoma"
631 Great Deals out of 30,294 listings starting at $2,850
Used Ford F-250"
609 listings starting at $3,995
Used Ford Mustang"
721 Great Deals out of 41,403 listings starting at $900
Used Ford Ranger"
255 Great Deals out of 7,800 listings starting at $988
Used Ford Explorer"
1,312 Great Deals out of 71,772 listings starting at $300
Used Chevrolet Tahoe"
1,107 Great Deals out of 36,353 listings starting at $1,700

Used Cars For Sale

2017 Ford F-150 For Sale
6,695 listings starting at $17,015
2016 Ford F-150 For Sale
144 Great Deals out of 137,896 listings starting at $16,985
2015 Ford F-150 For Sale
238 Great Deals out of 8,951 listings starting at $17,958
2014 Ford F-150 For Sale
487 Great Deals out of 10,911 listings starting at $10,450
2013 Ford F-150 For Sale
693 Great Deals out of 14,710 listings starting at $7,727