Q: Engine sounds like it is only running on 3 cylinders.

asked by on

My car has started running rough all of a sudden. I put some gas dryer through it, but after two weeks have not noticed a change. I also put some carb cleaner in the gas and still no change after two weeks. The engine sounds like it is running on only three cylinders.

The coils or spark plugs are misfiring on your car and this is pretty common for this engine. Have a technician inspect why your engine is misfiring. He will have to scan for codes on the misfiring cylinder and pull the coil from the cylinder and swap with a known good coil or swap two cylinder coils to see if the problem moves with the coil or stays in the same cylinder. If it moves then the coil was at fault. If it does not move then the spark plug is at fault. I recommend replacing all spark plugs and coils as a set.

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. Engine sounds like it is only running on 3 cylinders.

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 car is powerless and noisy. What is wrong?

Hi there. From the description you have provided, drive about 5-10 km engine starts to make strange noise, could be so many possibilities. Checking the engine oil level would be highly recommended. The noise from the engine area needs to...

Q: Car makes sound like muffler is loose.

Hi there. Noises can be deceiving; they resonate and are difficult to pinpoint. In a case like this, your best bet is to take your vehicle to a professional, such as a technician from YourMechanic to have it inspected.

Q: I have a 2002 Acura tl 3.2, what can cause the car to do this? Hesitates and then surges con't without my foot on gas pedal.

First check to see if any OBD-II codes have set. A real time scanner can be used to check the operation of the throttle position sensor - TPS. TPS faults are a common cause of the symptoms you are describing....

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...