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Pulsing of the electrical system could be due to the alternator, PCM or ignition switch.
Was the charging rate tested? If charging rate seems out of specs, check the harmonic balancer if equipped. Note if the crank pully is moving in a wavy pattern and check alternator belt tension.
Distributor can only be damaged if the fault is internal. Did you test if power is present at the distributor with ignition switch turned ON? If yes, test if power is available while cranking.
A faulty ignition switch can result in power supply disruption to the distributor while cranking. There was a safety recall on the igniton switch and it can cause intermittent stalling and non starting.
Did you test if the rotor is turning while cranking? Hope it is not a bad timing belt.
Does the Check Engine Lamp comes on and goes off after 2 seconds when ignition switch is turned on?
Saturday, August 10th, 2019 AT 11:23 AM