Can a bad ignition module cause no spark?
CASE 2: You got NO spark. Then further testing is required to see if the problem is due to a bad ignition control module (ICM), or a bad pick up coil or something else. In the next round of tests we’ll get closer to the component that has failed (and the truth shall set you free).
What happens if spark plug goes bad on distributor?
OK, with this test you’re gonna’ find out if the spark plug wire that feeds the spark from the ignition coil to the distributor is bad. This happens quite a bit where the ignition coil wire goes bad and doesn’t feed the ignition coil’s spark to the distributor cap.
How to test the GM distributor mounted ignition module?
Attach the HEI spark tester to this wire. Ground the HEI spark tester to the battery negative (-) terminal with a battery jump start cable. Ask your helper to crank the engine while you watch for spark jumping across the air gap of the spark tester. You’re gonna’ get one of the 2 results: (1) Spark or (2) No Spark.
Where is the spark in an ignition system?
Electronic ignition pickups are a component found on traditional electronic distributor ignition systems. They are located inside the distributor and function as the trigger for the ignition system to produce spark. The pickup coil monitors the rotation of the distributor and triggers the ignition system.
Can a bad spark plug cause a bad ignition?
No spark coming from any of the spark plug wires. The throttle body fuel injectors do not spray gasoline. The following are usually the most common symptoms of a bad spark plug wires, or a bad distributor cap and rotor on this type of GM distributor mounted ignition control module:
Can you test the GM distributor mounted ignition module?
The GM distributor mounted ignition control module (ICM), can be tested on the car or truck easily. Not only that, you don’t need any expensive tools to do it.
What are the symptoms of a bad ignition module?
The following are usually the most common symptoms of a bad spark plug wires, or a bad distributor cap and rotor on this type of GM distributor mounted ignition control module: The car (or truck, or mini-van, or van) starts and runs, but with a misfire. The check engine light is on. Lack of power.
What does it mean when there is no injector pulse?
In case of that, there is no injector pulse or spark, this means that is your ECU has failed in operating in this case you have to get your ECU changed or visit an expert. You May Like: Low Fuel Light Comes on When Tank Is Full Causes and How to solve it Question: What controls the fuel injector pulse?