I have yellow spark.
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.
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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
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