Q: Check engine light came on and it sounds like one or two cylinders are not running.

asked by on

My trucks check engine light came on and I suddenly lost a lot of power. It happened right after I pulled onto another road and tried accelerating. It sounds like one or two cylinders are not running. No visible smoke or fuel smell out of the exhaust.

My car has 157000 miles.
My car has an automatic transmission.

Hello. If the Check Engine Light is on, then the first thing I would do is retrieve the trouble codes. The Check Engine Light is likely related to your performance issues and retrieving the trouble codes may reveal some information as to what the problem could be. The fact that there is no fuel smell or smoke is a good sign. However, a loss of power can be caused by many things that would not produce either of those symptoms. A few things to look into would be the fuel system, the ignition system, and the engine management system. If you need help having this looked at, a certified professional from YourMechanic can come to your car’s location to diagnose the Check Engine Light along with the loss of power.

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. Check engine light came on and it sounds like one or two cylinders are not running.

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: I am currently trying to replace the passenger side CV half shaft and I can't get it to break free from the transfer case

A good way to resolve this issue is to us a pry bar as a punch and tap out the axle with a hammer.

Q: Car independently downshifts on startup

There seems to be a problem inside the transmission and the code that has turned on the Check Engine Light may point to it. Other vehicles having similar symptoms have had faulty torque converter clutch solenoids or line pressure solenoids....

Q: Q: Fuel pump problem

It could be a fuel pump, or a fuel pump relay issue. The fuel pumps are problematic on these Ram Diesels, and will quit with no warning. There are many aftermarket pumps that are more durable than the stock Dodge...

Related articles

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...