What happens when the ignition coil does not work?
NOTE: When the ignition coil or the ICM start to fail, they don’t always cause a cranks but does NOT start condition, since sometimes these components can fail intermittently. In this scenario, your vehicle will start and run most of the time, but every now and then it won’t.
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).
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.
Why does my 93 Sierra have no spark?
You can’t post conmments that contain an email address. Fuel, Spark, crank – no start I have a 93 Sierra White, was running when parked. Picked up another Sierra that was missing under load, was swapping parts found 3 cracked plugs, and bad wires and the fuel pump vapor locking.
Where is the ignition coil on a 1998 GMC?
Locate the ignition coil on the driver’s side of the engine just above the valve cover and bolted to the intake manifold. Remove the large wire coming from the top of the coil. This is the high-tension connection and you can set the wire aside for now. Locate the wiring harness connector on the top of the coil.
NOTE: When the ignition coil or the ICM start to fail, they don’t always cause a cranks but does NOT start condition, since sometimes these components can fail intermittently. In this scenario, your vehicle will start and run most of the time, but every now and then it won’t.
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.