Skip the auto shop - Our mechanics make house calls

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.

A: Hello. If the Check Engine Light is on, the...

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?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: How do I replace the headphone batteries?

Replacing the batteries in your vehicle’s headphone set is very easy. Locate the battery compartment, which is on the left ear cup. Slide off the battery cover. Carefully remove the dead batteries. Replace the batteries with two new AAA...

Q: Can shaft position sensor all of the outcomes of the problem

Possibilities: 1 - Simply replacing the camshaft sensor will solve your problem. 2 - If it does not, with the age of the vehicle, there can be a break in the wiring harness to the cam sensor. 3 - If...

Q: Car not staying started

Hi there. Diesel fuel systems can be temperamental, so that is where I would start. Lack of fuel pressure, contaminants or air in the system can cause the symptoms you are having. The water/fuel separator may need to be serviced...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.