7.4 no spark
#1
Guest
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I had my formula out the other day going along at 50 running fine then it just quit, wouldnt start up again. Found I had no spark, Got it traced down to the sensor in the distributor or the ignition amplifier. Does anyone know how to test the sensor, it is a 88 7.4 330hp with thunderbolt ignition? I pulled it out and it is very corroded. Any info greatly appreciated.
#5
Registered
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Just as a side note, do not clean the sensor if it is presently working. A friend of mine who runs a Merc repair shop has had many customers come in with a no spark condtion after replacing a cap and rotor. Seems that while changing cap and rotor they notice the sensor being corroded and clean it. Often times this kills them.
Tim T.
Tim T.