How long do car ignition coils last?
around 100,000 miles
The ignition coil on car is supposed to last around 100,000 miles or more. You will have reduced gas mileage when coil begins to go bad and becomes less able to transfer power. Your car requires more fuel to run, this means you will spend more money on gas than normal.
Why does the same coil pack keep going bad?
I have a 2006 Grand Prix and the same coil pack has gone 3 times in one year. Each time i have my coil pack replaced i also get my spark plug replaced. Why does the same coil pack keep going bad and how can i fix it?
Can a spark plug on a car coil be damaged?
Admittedly reaching on this next one, but if the spark on that cylinder is jumping someplace it shouldn’t before reaching the spark plug, that could damage the coil too. So carefully check the spark plug wires for connectivity (the ohm measurement should be similar to adjacent wires) and signs of insulation cracking.
Why does ICM drop voltage to ignition coils?
Once the engine starts, and ICM switches to the run mode, it’s suppose to drop the voltage to the coils because the charging system comes on line. And if an ignition coil see’s 14-15 volts instead 8-10 volts, it’s not going to last very long. I suspect this would burn up all the coils, not just one…? I’m guessing @Tester is probably spot on.
Why is my ICM not working on my car?
The problem might be caused by a faulty ignition control module that the coil packs plug into. The ICM functions in two modes. These are the start and run modes.
How is the battery fed to the coil?
“–“ is fed directly from the battery, via the ignition switch, the coil primary winding carries the full battery output to earth, through the contact breaker, with a higher current load the faster the car is run.
Where does the coil go on a MG TC?
When the MG TC was new, if an ignition coil was to be retired for any reason, the replacement coil would be marked SW (for switch) on the low tension terminal receiving current, at 12 volts, from the battery negative terminal, through the ignition switch.
How is the Lt coil connected to the HT coil?
When the LT terminals are connected in this fashion, the current is fed to both the low tension LT coil and to the high tension HT coil, by the internal design in approximately equal proportions, thus halving the LT heating effect. It will pay to check the resistance between the low tension terminals.
How do you connect a coil to a ignition switch?
Very simple; ignore the polarity markings on the new coil and install it with its “+” side toward the battery/ignition switch supply side and the “–“ terminal connecting with the distributor (CB).