Q: Ignition coil pack is not firing (1 out of 3)

asked by on

I had the ignition module tested more than once to be sure and it was good cOil pack in the middle which is 2/5 is not firing at all ! With new wires! Could it be the spark plugs? It happened 1 day with no warning!

My car has 233000 miles.
My car has an automatic transmission.

It is not uncommon for an ignition coil to fail. Ignition coils are coated with a varnish-like insulation that becomes brittle over time after being stretched then contracted repeated as the copper beneath them expands and contracts much quicker than the insulation. The insulation can develop small fractures that open when heated and close when cooled. When open, they allow shorting of coil windings which in turn decreases the coil’s ability to function. I would recommend having an expert from YourMechanic come to your location to inspect the misfiring problem in person and perform any needed repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Ignition coil pack is not firing (1 out of 3)

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car lost all power after downshifting to go uphill

Hello! Although the Check Engine Light has been on before a new issue may have occurred, I would suggest hooking a scan tool up to the vehicle and retrieving the OBD2 codes. The problem you're having should almost certainly set...

Q: Q: Misfiring

Engine misfires can be caused by many different problems and are generally caused by either a spark or fuel issue or in some cases, a combination of both. Spark related problems generally will result from things like ignition coils, crankshaft...

Q: When I apply the Apply the brake to shift gears the car will die

The brake booster is supplied vacuum from the engine and if it is leaking vacuum when you push the brakes, then the booster may need replacement. I recommend having a mechanic diagnose the vacuum booster for the brakes and also...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.