I have a 2012 rogue that has developed a problem with the alternator clutch pulley (it wiggles) and also there sounds like something is rattling around inside the alternator itself. I figure a new alternator will take care of that, however, on my way to pick up the alternator it started hesitating, almost as if it was going to freeze up, which is something new. In the not so distant past I’ve gotten a couple of codes P010 something that indicated a bad o2 sensor. Can a bad o2 sensor cause this hesitation?

I'm absolutely no clue, and joining you investigating.

So I dont know about the hesitating with alternator.

But when you mention O2 sensors, I actually bought 2 new ones when I got codes during the shaking and stalling issue you can read here earlier.

I bought them because I thought those were the reason as backup.

Bad O2 sensors can cause hesitation and stalling but I believe my present ones seem to be very sturdy & reliable because my originals are not giving me any problems since 2009.

Still have new ones stored in the cabinet but kinda bummed out I had to waste money on them. Their cheap anyways.

Anyways, tell us how it ends after you change the alternator. Thx.

Well. “New” alternator installed, so far no hesitation, driving very carefully! Thank you for the reply and input. Will let you know if it hesitates again.

Welcome aboard!

FYI, the alternator doesnt have a clutch, just a plain old pulley. However, a failing alternator *could* begin to seize up and place resistance on the belt, which would bog the engine a bit.

O2 sensor would be a totally different issue, and while it might cause some hesitation, it's not likely - O2 sensor code would also still be present. Keep an eye on it, sounds like you were successful with the fix!

2012 rogue: One day I had my oil changed at Walmart - at the time they told me I needed a new air filter. I didn’t purchase one then but did a few days later (from Walmart) ever since then I’ve been getting the check engine light when the car idles for an extended period of time. Usually it goes away if I fiddle with the air filter. However, this time the check engine light is on without the long term idling that usually prompts the light. Can this issue be from the wrong air filter? Hoping for a simple fix, the last time I had the code checked it was P0171 (autozone). Also should mention, the check engine light NEVER came on until Walmart reported that the air filter needed to be changed. PS alternator replaced....

Welcome aboard!

Rather than guessing, buy a scanner. It amazes me how many people will spend hundreds of dollars running all over town and doing further damage to their car rather than just pulling their own codes.

Here's your Christmas present: https://www.amazon.com/Innova-Screen-30 ... B07525GNFR

Pull the code. My guess is the nitwits at WalMart simply didn't plug something back in.

No, the wrong air filter won't do it, but you should be doing your own air filter anyway - it's literally a 5-minute job, no tools needed.