2009 Aveo Bucking/Jerking/Losing Power

[CKTofu]

I recently bought a 2009 Aveo with just over 64000 miles, had it tuned up and the thermostat and timing belt replaced. It was fine for a while, then has been having the same issues as many of the others above. Randomly, it loses power, "bucks" or picks up speed unexpectedly. Most often, I have to turn it completely off and restart- then it drives fine (for a while) There is no rhyme or reason to this issues, sometimes it's fine for a 100 miles, sometimes just a few. Any ideas? Thanks!

I had to replace both my O2 sensors, as I mentioned in a couple posts previously. However, before blindly replacing parts, any chance you have an OBD2 reader you can use? You can get Bluetooth ones to use with your smartphone if not.

[kalepumpkins]

I had to replace both my O2 sensors, as I mentioned in a couple posts previously. However, before blindly replacing parts, any chance you have an OBD2 reader you can use? You can get Bluetooth ones to use with your smartphone if not.

I'm new to this forum, so don't know exactly how to use it yet. I don't have an OBD2 reader (or a smartphone), but might be able to borrow one, or do you know of a good inexpensive one to buy? It really scares my kids and unnerves me to lose power suddenly!

[CKTofu]

I'm new to this forum, so don't know exactly how to use it yet. I don't have an OBD2 reader (or a smartphone), but might be able to borrow one, or do you know of a good inexpensive one to buy? It really scares my kids and unnerves me to lose power suddenly!

A regular OBD 2 reader runs about $100-$150, but the smartphone bluetooth adapter is about $10. Ideally you could just borrow one or a hand from someone who knows how to use it. I know of one Canadian auto parts dealer that would check the codes for free, at least last I heard.I mean, my money's on one or both of the O2 sensors, since you have the same year Aveo as myself, and those issues are almost identical, aside from your car having more miles, but if you can check the codes beforehand it might be able to be more accurate, since there could always be a different issue.

[kalepumpkins]

A regular OBD 2 reader runs about $100-$150, but the smartphone bluetooth adapter is about $10. Ideally you could just borrow one or a hand from someone who knows how to use it. I know of one Canadian auto parts dealer that would check the codes for free, at least last I heard.I mean, my money's on one or both of the O2 sensors, since you have the same year Aveo as myself, and those issues are almost identical, aside from your car having more miles, but if you can check the codes beforehand it might be able to be more accurate, since there could always be a different issue.

Hi, I'm in the US, and don't know if any of the auto parts dealers check codes for free, but I do have at least one friend who I'm sure has one of those readers. The check engine light has come on for O2 sensors on my other vehicles, but maybe that's not the case here. I'll let you know what happens It's great to chat to someone with the same year model, so thank you again!

[MetroMPG]

Hi, I'm in the US, and don't know if any of the auto parts dealers check codes for free

In case your friend doesn't have one, I'm pretty sure most major chains will read your code for free. Check with Autozone, Advance Autoparts, O'Rileys.