E350 no spark, please help
#1
E350 no spark, please help
Truck ran great, until one day it wouldn't start. Getting no spark from coil. Got 12 v to coil.. But not getting trigger signal on pin 2 from ICM. Replaced coil and ICM. Same problem. Cut and replaced #2 wire. Same problem. #6 pin from ICM gets signal.. Which I believe is the pip or hall effect sensor from distributor.. So it can't be that?? Why am I getting no trigger? I can manually create spark on all cylinders with jumper wire to trigger wire. Bad ICM still? Original tested good.. And bought ne
w one... Same issue.. No trigger.. Possibly bad pcm? Please help before I turn this truck into a target practice object. Thanks!
w one... Same issue.. No trigger.. Possibly bad pcm? Please help before I turn this truck into a target practice object. Thanks!
#3
It would not be the first time a "new" part was defective.
Have had several where the roll pin for the dist gear sheared and spark was either to wrong cyl or no spark at all.
Check if the rotor is turning and aligns the timing mark on the crank pulley with the rotor pointing to #1 spark plug wire.
Also, confirm continuity of pick-up coil in dist. Sometimes those wires break.
Have had several where the roll pin for the dist gear sheared and spark was either to wrong cyl or no spark at all.
Check if the rotor is turning and aligns the timing mark on the crank pulley with the rotor pointing to #1 spark plug wire.
Also, confirm continuity of pick-up coil in dist. Sometimes those wires break.
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