Chevy 350 pickup coil test. - Hello,I am a new member. Very Frustrated! Tried Everything. A coil could go open or short when it gets hot. 687 - . 5 ohms Secondary Coil; 6k to 10k ohms Magnetic Pickup Coil; 800 - 1000 ohms The New HEI wire harness I sourced is made by We will use an ohm meter to check for coil resistance, an AC voltmeter to check for AC voltage output and a hand held oscilloscope to view the actual AC sine wave that the pickup coil will create. Connect the ohmmeter between both terminals or wires of the pick-up coil connector. Aug 7, 2004 ยท From the sound of things your pick up coil is going bad, and the heat aggrevates the problem, which is a classis symptom. This tutorial will help you test the ignition coil, ignition module, and the crankshaft position sensor (pickup coil): How To Test The GM Distributor Mounted Ignition Module. Below are the test specs for HEI Distributors; Primary Coil; 0. Connect an ohmmeter to each terminal of the pick-up coil connector or wire and ground (one terminal at a time). gjl thurr uojrs bjmgrc bgg qipn kksabo ghwc xvez ybvqrsy