Q: Two cylinders are not working, car runs on 2 cylinders

asked by on

Was driving and when I pressed on the gas it wasn't registering, then smoke shot out the back and I heard a grinding noise. Now the car only runs on two cylinders. The spark plugs were not hitting in the two cylinders that weren't working. I changed the spark plugs out, when I changed them one had alot of oil on it. So I also changed the head gaskets and the spark plugs. Still only two cylinders hit. When I go to start it, you have to hold the key turned until it catches, as if it has a bad battery and trying to get enough juice to turn. Sometimes have to give it some gas to start. I tried to drive it around the block and it runs on 2 cylinders as long as I keep pushing gas. If I let off, it will idle down and then cut off. If i start it and don't go anywhere and stay in the garage, it will idle but barley. But once I take off and drive a bit, it will not idle. Have to hold the gas down to keep it from shutting off. What could this be ?

My car has 65000 miles.
My car has an automatic transmission.

Hi there. Are there any warning lights on? This would be a good starting point as the ECM will set codes to aid in the direction of diagnosis. Has a compression test been performed? A cylinder leakage test? What were the results? This could be failed ignition coils, an open circuit in the wire harness, a faulty ECM, or a mechanical concern. I suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with an engine is misfiring inspection.

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. Two cylinders are not working, car runs on 2 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: Replaced master/slave cylinder and clutch pedal is hard as a rock and won't depress what could it be?

You need to open the bleeder on the slave cylinder to see if the clutch can be pressed down? If it still cannot be pushed down then the problem is in the clutch master cylinder and it is binding. If...

Q: Tire going flat despite no visible damage

Hi, it can be very hard to find holes in a tire sometimes as they can be very small. It is also possible that the Schrader valve on the tire is damaged and leaking air slowly. You can try putting...

Q: 05 XL-7 CAN FRONT CRANK SEAL BE REPLACED WITHOUT REMOVING TIMING COVER?

The seal has to be accessible (that is visible and there is enough room to pry it out) on removal and, as well, there has to be enough space to press it back in using an appropriate seal installation tool....

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...
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 to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...