What is a ignition distributor cap?
The distributor cap is the cover that protects the distributor’s internal parts and holds the contacts between internal rotor and the spark plug wires.
How is the ignition coil connected to the spark plug?
Each spark plug in a car has its own ignition coil. The coil is either physically connected to the spark plug with wires or it sits on top of the spark plug without using wires. The spark plug needs about 15,000 to 20,000 volts of electricity in order to form an electric spark that can ignite the fuel.
How does the GM distributor mounted ignition module work?
OK, once the fuel injection computer receives the Distributor Reference Hi Signal, it starts activating the fuel injectors and above 400 RPM, starts to send a 5 Volt Bypass Signal to the ignition control module. It’s with the Bypass Signal that the computer starts to retard and advance ignition timing with the IC Signal.
What was the ignition module on a 1993 GMC k1500?
1993 GMC K1500, K2500, K3500 Pick Up. All of the information you need to diagnose a no-start problem caused by the ignition module, or the ignition coil, or the distributor pickup coil. Wiring diagram. Component pin outs.
Where does the pick up coil signal go in an ignition module?
This pick up coil signal is sent directly to the ignition control module. The ignition module, upon receiving this pick up coil signal (for all intended purposes it’s a crankshaft position sensor signal) converts it to a digital signal that is now sent to the fuel injection computer.
What kind of distributor cap does GM use?
An ACDelco GM Original Equipment Distributor Cap is a GM-recommended replacement for your vehicle’s original component. It covers the top of the distributor and provides half of the rotary switch (distributor rotor).
What happens when the ICM fails on a GM car?
Generally, when the ICM or the ignition coil fails, your GM car or truck will Crank but NOT START. Specifically, the ignition coil will not spark.
Can a GM ignition control module be used?
The ignition control module (ICM) and ignition coil tests in this article assume that your vehicle is Cranking but NOT STARTING due to a NO SPARK Condition. If you’re GM car or truck starts and runs, this article will not help you.
What was the ignition module for a 1996 GMC c2500?
1996 GMC C1500, C2500, C3500 Pick Up. 1996 GMC K1500, K2500, K3500 Pick Up. All of the information you need to diagnose a misfire or a no-start problem (caused by the ignition coil, the ignition module, or the crankshaft position sensor).