Ok so i bought a used 2014 sv sport with 10k miles on it. i have owned it for a week and a half. One thing i have noticed is a popping noise that happens on the drivers side. It only does it once when the car has been sitting overnight or for a couple of hours. I crank the car up, let it warm up for a couple minutes then go. After a couple of seconds once i pull out of a driveway and start to pick up speed it'll pop once. its always at the same time of pulling out of anywhere. maybe around the 5-10 mph mark. its easily heard and felt from the floorboard as well. if i turn the car off and let it sit for about 30 minutes or so and go to drive it again it wont do it. only when i let the car get cold again. but it does it every time when i let the car sit.

It kind of reminds me of when i had my 04 maxima when i would drive off after its been sitting that it would make like a kinda loud suction/buzzing noise from the drivers side. which i narrowed it down to being the steering pump. as if the fluid was being forced through. maybe the pop is related to the steering pump.

i know i should let the dealership look at it. but my closest nissan place is 40 min away and i can really afford to let them keep my car overnight or for a couple of days to diagnose a problem thats really hard to recreate unless they have the car for hours and hours on end.

any help would be appreciated.

 

I believe that is your ABS braking system doing a self test. Nothing to worry about, it is quite normal. You can search the topic to find out more.

 

ABS test for sure... totally normal. Mine does it every morning once I hit 30mph. Somtimes it seems louder than others... but that is definitely what you have going on here.

 

thanks for the responses

also to help confirm yalls theories. i have narrowed it down a little more.
i noticed that it always does it at exactly the 30 mph mark. also when it does do it i also notice that it dims my headlights and electronics for a split second.

edit:
kruegs, i totally did not read your reply before i posted my response lol. i just read the first few words. i see you too said 30 mph.

 

Yep, that's it for sure... it will make the pop noise at exactly 30.

 

I think every car might be different then or maybe it's newer models, I have a 2010 and the abs check occurs at exactly 18 mph

 

well I'm glad to know what the noise is and to have an answer for it. but it gets me curious. what exactly causes the noise? what is happening when the car does the self check?

 

anyone?