Q: Q: Bad spark plug

asked by on

Spark plug isn't firing.

If the spark plug isn’t firing, the spark plug gap could possibly be to wide from high mileage. This plug could also be physically damaged or the spark plugs porcelain could be cracked. If the spark plug wires are cut or have excessive electrical resistance the plug will not fire. Also, there is a possibility that the spark plug coil is going bad. It will not create enough power in order to make the spark jump the gap and therefor will not fire. A proper diagnostic should be carried out by a qualified technician and a replacement of your spark plugs replacement can be done if necessary.

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. Q: Bad spark plug

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: Q: How do I engage the parking brake?

The parking brake is a very important safety feature that keeps your vehicle from rolling away when parked. To engage the parking brake, press down on the parking brake pedal, which is to the left of the brake pedal.

Q: Buying used car and checking for oil burning

Look in the tail pipe for oil residue indicating excessive oil or look for any blue smoke coming from exhaust when running. Other than this you would need to do oil consumption test. See when last oil change was done...

Q: RPM's drop quickly and engine dies - 1996 Nissan 300ZX

I'm trying my best to follow.. Normally you will engage the clutch as you are shifting gears, as pressing the clutch is the same (essentially) as putting the stick into neutral. So if I am following this correctly, the car...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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.