Q: Check engine light on, power loss in fourth gear

asked by on July 29, 2016

The check engine light randomly comes on in my car. I went to the dealer's several times but they couldn't diagnose the problem as there was no check engine light on at that time. It went on when I took the car back though. They only replaced the sparkplugs. But, the other day, it got even worse. While I was driving and put it in fourth gear, there was a complete power loss. I applied the gas pedal, but there wasn't any power. The engine was still running. I let it sit for a while, then restarted it and it ran well for a while but lost power yet again. The dashboard doesn't show any lights now. What could be wrong?

Many different faults can be attributed to your 2008 Chevrolet Aveo5’s loss of power. In cases where the Check Engine Light has not set a hard code, it can be a bit harder to pinpoint the issue.

If the spark plugs were replaced when the Check Engine Light was able to be read, I can only guess that the code was for a misfire without knowing the actual code. The most likely causes of a loss of power would be a misfire, spark plugs, fuel pump, fuel filter, oxygen sensor, MAF sensor or vacuum leak. A qualified technician, such as one from YourMechanic, will be able to diagnose the vehicle’s loss of power and perform any repairs required.

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

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

High idle and poor gas on my 92 Chevy s10 4.3 . How can I fix this?

Hi Dominga. Thanks for submitting your question today. There could be several mechanical problems causing the high idle and excessive fuel consumption. Usually, it is something simple - like a loose vacuum line, dirty or damaged mass air flow sensor...

All windows stop working and lights on window switch stop working. It makes a buzzing sound. Its fixed by banging on the door.

If you are able to get the circuit to work by "jarring" it, that means there is a loose connection somewhere. To figure out where the loose connection is (it could be in wiring, a terminal or a component such...

the check engine light appears and it gives us the code P0170

The P0170 trouble code does not necessarily go with your vehicle, but it indicates fuel control problems. I recommend the following: Have the fuel pressure tested to see if it is too low or high. Make sure...

Related articles

P0383 OBD-II Trouble Code: Glow Plug Control Module Control Circuit Low
Trouble code P0383 means the PCM has detected a low voltage reading of the glow plug heater circuit.
P0749 OBD-II Trouble Code:Transmission Fluid Pressure Solenoid Intermittent
P0749 means a voltage problem with the transmission fluid pressure control solenoid due to a faulty solenoid,or dirty or low transmission fluid
P0658 OBD-II Trouble Code: Actuator Supply Voltage “A” Circuit Low
P0658 means that there is a fault in the actuator supply voltage due to Shorted or open wires or damaged connectors in the PCM, or a control module.