Quote:
Originally Posted by Andy4639
First thing is check the wire to the cap for the coil. That is a later model HEI distributor it needs 12 volts all the time to work properly. These truck came with a resistor wire in the harness to cut down the voltage to 9 volts at start and while running. If it's the factory wiring hooked to it then that is your main problem.
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I'm seeing between 9 and 10v while running at the blue wire on the distributor. At the battery I'm seeing between 14.3 and 14.5v while running.
I'm seeing full battery voltage (12.84v) at the blue wire with the engine stopped but the key in the ON position.
This truck drove fine for 3 years with the same components (PO installed them all). It only recently started exhibiting this intermittent power loss behavior. Why would this just now become a problem?