Table of Contents
What does a Electronic Spark Control Module do?
The Electronic Spark Control, also called the Knock Sensor, is an electronic device built by General Motors to help regulate the timing inside of the engine. When combustion inside the engine does not fire properly, a “spark knock” or abnormal vibration can occur.
How do you know if your ignition module is bad?
Signs of a Bad Ignition Module
- Acceleration Issues. The vehicle may shake, vibrate or jerk when the gas pedal is pressed. There may be hesitation or lack of power during increases in speed.
- Temperature Problems. A faulty ignition module can cause a vehicle to overheat.
- No Power. The engine may turn over without starting.
How do you test a spark control module?
Connect the ground lead from the 12-volt test light to the negative terminal on the ignition coil. Have your partner crank the engine over several times. Your test light should flicker on and off. If so, your module is working properly and no further testing is necessary.
Can you drive with a bad ignition module?
A failing ignition control module can be a real headache at times. It can produce a wide range of engine performance problems, including preventing the engine from starting or stalling the engine as you speed down the road, just to let you resume your driving a few minutes later, as if nothing had happened.
How long does a ignition control module last?
Federal law in the United States dictates that the ignition coil and ignition module on new vehicles are warranted for at least two years or 24,000 miles, whichever occurs first. The insulation in the ignition coil will degrade over time, but many coils are designed to last 100,000 miles or more.
Can you fix an ignition module?
Once you have a correct diagnosis of a failing module, you can perform the replacement yourself. If the mechanic informs you that there is a problem related to the module, but it is not the module itself, you might not need a new part.
Can I replace ignition Control Module myself?
You can instead have the ignition module tested at an automotive repair shop. Once you have a correct diagnosis of a failing module, you can perform the replacement yourself. If the mechanic informs you that there is a problem related to the module, but it is not the module itself, you might not need a new part.