Q: My car is misfiring on several cylinders and there is coolant in my coil pack 5and 6

asked by on

My car started misfiring in random cylinders all at once. It shows code for cylinder 5 and 6 misfire also. We pulled the coil pack in 5 and there is coolant inside of it. My car is ildiling rough, has no power and dies even if u have foot on pedal

My car has 206321 miles.
My car has an automatic transmission.

The presence of coolant suggests a leak and that should be resolved as a leak could be a cause of the misfiring if water creates a path to ground. If, by chance, you are referring to coolant actually in the cylinders, that is you removed the spark plug(s) and see coolant, obviously that would be a significant problem. Regardless of the exact service you request, in your circumstance both the leak and the misfiring would be looked at together. I suggest you request a coolant leak diagnostic and the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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. My car is misfiring on several cylinders and there is coolant in my coil pack 5and 6

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: My 2007 bmw 750li, makes noise when I'm not pressing in the gas. The car indicated oil level was ok. What could causing the noise

Hi there. It really depends on what type of noise you are hearing that will determine what is causing the noise. If it's a constant ticking noise, it's possible your serpentine belt or the pulleys that drive that belt are...

Q: Car won't stay started. Tons of oil in the spark plugs.

Hi Eugenia. Thanks for contacting us today. Oil leaking into the spark plug wells is an indictor of a fairly serious problem that should be inspected and repaired immediately. It is almost always due to a failing gasket or O-ring...

Q: Oil light keeps coming on

You should have the oil pressure checked first. If the pressure is normal then replace the oil pressure switch. The switch controls the light if pressure is lost or if the sensor shorts internally to a ground which sets the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...