Q: Check engine light on, power loss in fourth gear
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?
Recommended Services
| Spark Plugs Replacement | $113.11 - $716.47 | Get a Quote |
| Fuel Pump Replacement | $145.32 - $1299.70 | Get a Quote |
| Fuel Filter Replacement | $98.50 - $325.56 | Get a Quote |
| Oxygen Sensor Replacement | $123.80 - $932.74 | Get a Quote |
| Mass Airflow Sensor Replacement | $188.36 - $786.53 | Get a Quote |
| Loss of power Inspection | $94.99 - $114.99 | Get a Quote |
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.
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