Question about 1990 Ford F150
Check for 12 volts at the coil with the key on. This system uses a hall effect pick-up which is located in the distributor. Along with this pick-up you have either a (TFI) thick film ignition module or a duraspark ignition module. If you have a TFI it will be mounted on the side of the distributor. A duraspark module will be mounted to the drivers side fender well. In most cases, the pick up in the distributor is the root cause. If you have a TFI module, the pick up and module are usually replaced as a pair. Good Luck.
Posted on Apr 07, 2011
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Posted on Jan 02, 2017
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