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Discussion Starter #1
I've had the car for 1 year, 1 month. Since new it's had a nasty whine that used to be only at 62-65 mph. I've been to two different dealerships over the course of the year countless times for the problem as it basically drives me crazy to drive it at highway speeds. The car now audibly whines when decelerating or accelerating past 20 mph, 30-45 mph, and 60-80 mph. I'll attach a video I just took a few days ago that shows the whine. Is there anything you'd recommend I try or do to get this taken care of? I love the car except this issue! Thank you guys!

 

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Don't do anything. The car has a warranty. Lets the dealer sort it out, and don't take no for an answer. Something is wrong somewhere. Tell the dealer to fix it, and if they can't, tell them to get a tech from Mazda to come look at it. If the dealer jerks you around call Mazda North America customer service.
 

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Discussion Starter #3
Don't do anything. The car has a warranty. Lets the dealer sort it out, and don't take no for an answer. Something is wrong somewhere. Tell the dealer to fix it, and if they can't, tell them to get a tech from Mazda to come look at it. If the dealer jerks you around call Mazda North America customer service.
Appreciate it. The dealer in my town said they used chassis ears and put it up on a lift finally and said it was normal. Supposedly contacted Mazda Techline about it with a video; I requested a copy of the video from the service advisor that told me about it and another and haven't seen anything about that in about a month. I've spent so much time researching possible causes for this issue and they all lead back to it not being normal, mostly differential ring & pinion. I'll have to call customer service again. It's actually borderline unbearable to drive normally now, I'm so attuned to the noise I hear it everywhere and it drives my girlfriend more crazy than me. It took all the fun out of it. Thank you again, I'll let you guys know if anything changes. :)
 

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Go to trade the car in... When they ping the car's value due to the noise, yell, "A ha! See? I knew something was wrong!" Then demand to have it fixed under warranty. LOL!

Or... I had a 2001 Camaro that had some RFI issue intermittently. I'd "hear" the fuel pump through the sound system. Perhaps that's happening here as well?

RFI Article
 

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It's related to RPMS and gear, I unfortunately don't think that's the case. I will be taking it back tomorrow though as when my wheel is fully turned to the right, it is rubbing on something. I would take it apart, as I already lifted it in the air today, but realized it's got a warranty and should be done right in the first place. They had to replace both front lcas and bump stops at 12k miles already lol.
 

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2017 MT here. I have the exact same noise, only when the car has not been driven for a few days and at very low RPMs and very low charge. It only lasts a few seconds. Nothing when car is at temperature.
I think this noise might be related to inner parts of the transmission rather than to the diff. In my case it only appears when I'm going to 3rd or 4th in said conditions. If I put the car in other gears or in neutral, the noise disappears.
What's strange is that it appears at higher rpms and speed for you.
When you'll have the car back, can you try to put your car in neutral (if MT) or shift to other gears when you hear the noise?
 

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Could be transmission related. Whine sounds are hard to pickup as it could be the tires themselves or something in the alignment of body/frame/tires
 

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Discussion Starter #8
Well, I've got other issues going on now. They replaced the lower control arms and bump stops on the front, and it clunks over bumps. Pretty sure they didn't torque the LCA's right. I also have what appears to be grease on the drivers CV boot and it rubs really bad when turned fully right. Verified this morning on jacks that the other side doesn't do it, but when it's lifted into the air the spring pops on the strut. Doesn't seem to noticeably do it on the ground. This car is feeling like more of a chore to own than a joy at 12k miles. -_-
 

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Regarding the whine... On SkyActive-AT transmissions (i.e. the automatic, 6 speed transmission) - now if memory serves, there is an issue with some cars... and one of the output shaft seals causes the noise. This is detailed on Mazda6club.com . Folks have had the seal replaced under warranty - and the issue was rectified.

It is not totally clear to me whether you have an automatic (I THINK you do) - but I don'r recall whether it was only on the automatic that one of transaxle half-shaft oil seals made for this whining.

If it were a final drive whine, well, there actually is NO ring and pinion in the transaxle... there is only (in the manual transaxle) - an output shaft and a differential drive gear... Not totally sure re the automatic, but I suspect it is similar. They are actually regular helically-cut gears. No pinion gear and ring gear. Anyways, I am not sure if helically-cut gears like this will actually whine in the sense that an improperly set up ring and pinion will whine.

If it were a final drive whine, then it'd happen regardless of whether in 4th gear, 5th gear, 6th gear (or the lower gears, for that matter). A traditional final drive whine changes, sometimes, on acceleration, versus on deceleration. I'm not sure I could hear that in your video.

I almost think that it is a resonance or a squeal... not a loud final drive issue.
 

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Discussion Starter #10
Thanks for the info! I actually didn't know it didn't have a ring and pinion, I assumed that was part of the differential? It's an open differential, I know that. It's a 6-speed and I brought the axle greasing up to the dealer as it applied to automatics, but they wouldn't even entertain the idea. They refuse to do anything that isn't officially a TSB, and I think that's because Mazda won't pay for it? They pass it off as normal where as every acceleration and deceleration I've seen of 6-speeds in videos don't whine. It happens in every gear and starts at 15 mph and doesn't stop until roughly 75-80. It's really annoying at a steady throttle. I could take a better cruising video to capture it. I'm going in for a look at my CV joints, LCA and strut this morning though. Tech replaced them Saturday and now I can feel and hear it knocking as well as if I hit a big enough bump in the road the wheel feels like it has torque steer. I think it very well could be a resonance issue, but is that fixable or would warranty repair?
 

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Anything that is wrong is a warranty issue unless its something you did....
Take the car back, tell them they screwed up the repairs and have them fix it. If they don't, call Mazda Corporate then find another dealer. Just because there is no TSB doesn't mean in any way that there isn't something wrong.
 

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Appreciate the response, Arathol. It's currently being repaired for what I believe is a worn cv axle that's binding when turning right. The LCA needs to be retorqued/replaced, and right strut pops when turning wheel left and right. I feel like considering they worked on it for 4 days to fix a strut and LCA, that it would come back in better condition than when I dropped it off... But I'm proven wrong sadly. :) Mazda Corporate has deemed the noise normal, even though it's getting worse as time goes on. I'm hoping if the CV axle is replaced the noise goes away with the lubrication of the axle going into the transmission. Fingers crossed!
 

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Mazda Corporate has deemed the noise normal, even though it's getting worse as time goes on.
Who told you that? Did you talk directly to Mazda, or did the dealer? If it was the dealer, you need to call the customer support number and explain the problem. Did Mazda send a specialist to look at it? That is usually the way Mazda handles stuff like this. Don't accept anything the dealer says as accurate or true. The techs there obviously don't have any idea whats going on so they aren't going to explain the extent of problem to Mazda, either on the phone or on video feed. That sound is definitely not normal.
 

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Discussion Starter #14
Who told you that? Did you talk directly to Mazda, or did the dealer? If it was the dealer, you need to call the customer support number and explain the problem. Did Mazda send a specialist to look at it? That is usually the way Mazda handles stuff like this. Don't accept anything the dealer says as accurate or true. The techs there obviously don't have any idea whats going on so they aren't going to explain the extent of problem to Mazda, either on the phone or on video feed. That sound is definitely not normal.
I spoke with a Customer Experience Rep who took their word for it being normal, they haven't sent a specialist to look at it. This issue has me not even wanting to drive the car because it's just annoying. When you shift into second and start on the throttle, it starts whining correlating with speed & throttle position. When you shift into higher gears, as you get back on the throttle the noise stays the same as previous and continues to change and whine higher pitch with speed increase. I think it's the final drive as 6MT said above as it whines in every single gear. As soon as you hit 10-15 mph it whines until past freeway speeds. I'll try reopening the case with Mazda USA again. See what happens this time. Thank you. As for the CV axle binding, I showed them video of it and what looked like grease on it and they showed me the underside when I picked it up and the axle has been cleaned up and doesn't appear to be leaking. I'll check again this weekend and see how it looks, as they could've just cleaned it up. This is a major hassle though for what should've been a problem free experience, you know? :)
 

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Discussion Starter #16
Here is another suggestion- when the dealer tells you the sound is normal, ask the guy to show you another car that makes this same "normal" sound.....
I'd love to, but they have no manual models. The automatic CX-5 and MZ3 I drove both made no whine at speed though. It sucks. I've been told to use other not so friendly ways to get it replaced but that isn't something I'd be willing to risk or do. It's just a noise at this point.
 

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I'd love to, but they have no manual models. The automatic CX-5 and MZ3 I drove both made no whine at speed though. It sucks. I've been told to use other not so friendly ways to get it replaced but that isn't something I'd be willing to risk or do. It's just a noise at this point.
If they say the noise is "normal", they must know whats causing it. Have them explain to you exactly where the noise is coming from....I bet they can't....
When the noise stops, you'll find out whats wrong.....:oops:...Hopefully the car will still be under warranty when it happens.
 

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Discussion Starter #18
If they say the noise is "normal", they must know whats causing it. Have them explain to you exactly where the noise is coming from....I bet they can't....
When the noise stops, you'll find out whats wrong.....:oops:...Hopefully the car will still be under warranty when it happens.
They're pretty incompetent when it comes to repairs at my local dealer. I'm going to be jacking my car up and double checking torque on the LCA's this weekend. They left it so loose it was clunking over even small bumps. I was afraid it would pop out of the ball joint. Then he had the nerve this time to say my oil is in severe need of changing because of the mileage, it was due at 12100 for a change and it's 12300 miles on it. I asked how he knew that and he couldn't answer lol. And then I explained to the service manager my oil was changed by me at 8500 miles exactly and isn't due until at least 13500 miles LOL. The sticker on the window means didly. I wish I didn't live in the middle of nowhere with no other dealer choice though. The closest ones are an hour away and the highest rated one in Sacramento didn't do anything for me, actually cost me money by leaving my fill bolt loose and let the transmission fluid drain out over a month. Had to have it towed in and they refused to put my fluid back in and charged me 160$ for theirs. My girlfriend wants to trade it in. I told her we'd be losing thousands on a trade in currently.
 

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I've had the car for 1 year, 1 month. Since new it's had a nasty whine that used to be only at 62-65 mph. I've been to two different dealerships over the course of the year countless times for the problem as it basically drives me crazy to drive it at highway speeds. The car now audibly whines when decelerating or accelerating past 20 mph, 30-45 mph, and 60-80 mph. I'll attach a video I just took a few days ago that shows the whine. Is there anything you'd recommend I try or do to get this taken care of? I love the car except this issue! Thank you guys!

They're pretty incompetent when it comes to repairs at my local dealer. I'm going to be jacking my car up and double checking torque on the LCA's this weekend. They left it so loose it was clunking over even small bumps. I was afraid it would pop out of the ball joint. Then he had the nerve this time to say my oil is in severe need of changing because of the mileage, it was due at 12100 for a change and it's 12300 miles on it. I asked how he knew that and he couldn't answer lol. And then I explained to the service manager my oil was changed by me at 8500 miles exactly and isn't due until at least 13500 miles LOL. The sticker on the window means didly. I wish I didn't live in the middle of nowhere with no other dealer choice though. The closest ones are an hour away and the highest rated one in Sacramento didn't do anything for me, actually cost me money by leaving my fill bolt loose and let the transmission fluid drain out over a month. Had to have it towed in and they refused to put my fluid back in and charged me 160$ for theirs. My girlfriend wants to trade it in. I told her we'd be losing thousands on a trade in currently.
It sounds like you live in California. The state has very strong lemon laws. I have never had to use them, but have read of many cases where dealers have had to buy back cars. If I had as many problems as you have had I would be seriously considering the lemon law.
 

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It sounds like you live in California. The state has very strong lemon laws. I have never had to use them, but have read of many cases where dealers have had to buy back cars. If I had as many problems as you have had I would be seriously considering the lemon law.
Thanks, Sailor. I have looked at them briefly but it seems I need to have 4 repair attempts done, I don't know if that means trips to the dealer or actual work performed. It took them 5 visits to finally get the TSB done properly for my lower control arms, being the first two times they didn't do anything after it was reported, the third they only changed the bump stops, the 4th they changed the lower control arms but left them loose, and the 5th finally tightened everything correctly and it drives right again. I took my car to another dealer in Sacramento where it currently is, and sent in a video of the whine before coming in and was told yeah that doesn't sound right bring it in. Now, the tech that drove it says he thinks the sound is normal but opened a case with Mazda for his district. I'm hoping they'll send a rep out and have him hear it. They've also got a 2017 6-speed and 2019 6-speed on their lot that I was told I could drive if they deem it "normal." I at least have that option now! Thanks again for everyones input.
 
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