What causes bad control modules?
Vibration and Stress. Vibration as well as thermal stress has also been known to cause control modules to go bad. This is because they can cause tiny cracks to form in the control module’s circuit boards. However, unlike water damage, this type of damage to a control module is repairable.
What happens when an ignition module goes bad?
Overheating. Ignition modules that are overheating will soon completely cease to function and in the meantime can cause cause electrical shorts, engine stuttering, lower gas mileage, power loss, stalling, and gasoline odors in the exhaust. You can test for overheating while the car still runs.
How can I test my ignition control module?
You can test for overheating while the car still runs. Idle the engine for 30 minutes, and then tap the module with a screwdriver. The car may stall, which would strongly suggest that ignition control module may be the cause of the overheating you’re experiencing.
What should I do if my ignition is not working?
Check the ignition coil for a spark. Examine the wires at the cap, rotor, and spark plugs. If the car runs but has timing problems, use a tester light and wrench to adjust the spark plug timing according to the manufacturer’s specifications.
What should I do if my ignition module is overheating?
The car may stall, which would strongly suggest that ignition control module may be the cause of the overheating you’re experiencing. If you are caught with an overheated module in an emergency situation, you can cool it down with ice water, engine coolant, or refrigerant fluid.
What happens if you have a bad ignition control module?
A faulty ignition control module can cause a number of problems. 1. Check engine light is on: The ECM monitors all parts of the vehicle that could affect emissions. This includes the ignition system. If it determines the ignition module has caused a problem with the system, it will turn on the check engine light.
When does a GM V6 ignition module fail?
This is a crank sensor code that sets when the crankshaft position sensor reports data out of range to the vehicles main computer or control module. They designed these ignition control modules and GM V6 ignition coils to last for the life of the vehicle. Unfortunately, the definition of this term changed throughout the decades.
What is code set in memory with ignition system malfunction?
Another code found set in memory with an ignition system malfunction is the P0336. This is a crank sensor code that sets when the crankshaft position sensor reports data out of range to the vehicles main computer or control module. They designed these ignition control modules and GM V6 ignition coils to last for the life of the vehicle.
Why is my ignition not working in my car?
If your vehicle stalls unexpectedly during operation and will not start again, it is likely because of loose or corroded electrical connections in the ignition module. In this case, check the switch, clean oxidized terminals, and replace broken wires if necessary.