Vibration at highway speeds
#1
Vibration at highway speeds
2018 Max SV has slight vibration when on the highway, all road surfaces, some worse than others. I feel it in my butt and back. I had all 4 tires balanced, did not change the issue. It is about a 15 Hz vibration, meaning 15 pulses per second, and it's not a heavy vibration. The steering wheel is dead still, no vibration there. Vibration was there on the test drive before purchase, now 2000 miles. Is this normal? Am I feeling the road? It is the transmission? Yes I'm probably going to the dealer with this, but wanted your collective input first. Thanks.
#2
2018 Max SV has slight vibration when on the highway, all road surfaces, some worse than others. I feel it in my butt and back. I had all 4 tires balanced, did not change the issue. It is about a 15 Hz vibration, meaning 15 pulses per second, and it's not a heavy vibration. The steering wheel is dead still, no vibration there. Vibration was there on the test drive before purchase, now 2000 miles. Is this normal? Am I feeling the road? It is the transmission? Yes I'm probably going to the dealer with this, but wanted your collective input first. Thanks.
#4
Whatever the source of the vibration is, it is an isolated occurance. The majority of our cars are very smooth so I doubt it is an inherent issue with the CVT. I have owned 2 8th gen Maximas and also rented 3 other Maximas with no vibrations. The rental cars all had curb scoured wheels to boot.
You have done all the right things so far but I would suggest getting the wheels checked for being slightly bent and have the tires checked for being round. At 1st glance you are thinking "tire being round?" It does happen and can be determined by a "radial tire runout" test. A real tire pro will understand your request. (an out of round tire can actually minutely "hop" as speed increases giving you an issue). Beyond that, a quick evaluation of the 4 CV joints might be in order. Best of luck! Do report back on any findings
You have done all the right things so far but I would suggest getting the wheels checked for being slightly bent and have the tires checked for being round. At 1st glance you are thinking "tire being round?" It does happen and can be determined by a "radial tire runout" test. A real tire pro will understand your request. (an out of round tire can actually minutely "hop" as speed increases giving you an issue). Beyond that, a quick evaluation of the 4 CV joints might be in order. Best of luck! Do report back on any findings
#6
Tire pressure could be too high. Tire shops traditionally put them at closer to max pressure for the tire, not the vehicle rating. By that I mean, tires rated to 44max cold PSI, shop fills them to 38 or 40 PSI cold. Look inside your door trim, there's a sticker there with recommended pressure, probably around 32-33 cold. Check em cold, first thing in the morning before the sun hits one side, unless you're garage kept, then just make sure it's cool from last drive, then check. If too high, lower and give it a test drive.
#7
Solved
Thank you for the replies. You guys are great. Thanks to MadMax, I checked the tire pressure cold in the garage, sure enough they were all at 40, door sticker says 33 cold. I lowered them to 33, and most of the vibration is gone. I have a vibration app for the phone, and it's very minimal now, and that is probably the road. I also did what Mason Hatcher suggested, and there is zero change on the vibration meter when changing from 7, to 6, and 5 and back on the highway. I feel much better now, and all thanks to you guys. Next time I'll ask here first.
#8
Thank you for the replies. You guys are great. Thanks to MadMax, I checked the tire pressure cold in the garage, sure enough they were all at 40, door sticker says 33 cold. I lowered them to 33, and most of the vibration is gone. I have a vibration app for the phone, and it's very minimal now, and that is probably the road. I also did what Mason Hatcher suggested, and there is zero change on the vibration meter when changing from 7, to 6, and 5 and back on the highway. I feel much better now, and all thanks to you guys. Next time I'll ask here first.
#10
Yeah, I just don't understand why the shops overinflate. Because invariably they will get people coming back regularly to get the balance and alignment checked. I used to run higher PSI just for the sake of a little better MPG and tire life. I found there's really zero difference from 33 cold to 40 cold. But the stiffer the tire, the more noticeable the road. And at high speed that road feel turns into vibration. Good to hear you got the easy resolution.
#11
Wise advice robt, especially if there is still a bit of vibration going on back there. I still believe he has an out of bal. condition however.
#12
Yeah, I just don't understand why the shops overinflate. Because invariably they will get people coming back regularly to get the balance and alignment checked. I used to run higher PSI just for the sake of a little better MPG and tire life. I found there's really zero difference from 33 cold to 40 cold. But the stiffer the tire, the more noticeable the road. And at high speed that road feel turns into vibration. Good to hear you got the easy resolution.
#13
I'm going through the same annoying issue with tire inflation too. Perhaps its just having too much information as this is my first car with TPMS display. After a servicing the tire air pressures were, both, high (35 - 39 psi) and different in each tire. I took it back to the shop and they re-checked but stated that all tires read 33 psi. During the initial service the tech said he inflated all to 35. Was puzzled why the second tech shows different values and why the display was showing quite differently from what either of them said. But then I saw their pressure gauge, just the pop-up on the air filler nozzle... it did not inspire (in me, at least) any confidence that they actually know what the inflation pressure was... other than a ballpark number.
I just checked the tire inflations with a "reliable" pressure gauge. Indeed, they are all at 55 psi cold. The TPMS appears to be reading differently than my "reliable " gauge, and the "reliable" gauge at the shop. Hmmm. TMI, perhaps, that is making me nutz.
#14
Let this be a lesson to all. Nissan deliver's cars to there dealers with the tire pressure
well over the recommended pressure. Dealers know this and prior to the car being
delivered the dealers shop are to set the correct pressure. Every Nissan I have leased in
the past has been delivered to me over the recommended pressure. I have a 2018 Platinum
with the same over recommended pressure. Once i set it down to correct numbers the car is fine.
well over the recommended pressure. Dealers know this and prior to the car being
delivered the dealers shop are to set the correct pressure. Every Nissan I have leased in
the past has been delivered to me over the recommended pressure. I have a 2018 Platinum
with the same over recommended pressure. Once i set it down to correct numbers the car is fine.
#15
Let this be a lesson to all. Nissan deliver's cars to there dealers with the tire pressure
well over the recommended pressure. Dealers know this and prior to the car being
delivered the dealers shop are to set the correct pressure. Every Nissan I have leased in
the past has been delivered to me over the recommended pressure. I have a 2018 Platinum
with the same over recommended pressure. Once i set it down to correct numbers the car is fine.
well over the recommended pressure. Dealers know this and prior to the car being
delivered the dealers shop are to set the correct pressure. Every Nissan I have leased in
the past has been delivered to me over the recommended pressure. I have a 2018 Platinum
with the same over recommended pressure. Once i set it down to correct numbers the car is fine.
In the past I've noticed my tire shop doing the same after replacing tires. He seems to overinflate to set the bead but then doesn't back it down to the car's spec. He always left them hard and said that was for better handling and gas mileage. I'm not too sure I agree and always corrected the pressure to reduce road noise, etc.
#19
Vibration
2018 Max SV has slight vibration when on the highway, all road surfaces, some worse than others. I feel it in my butt and back. I had all 4 tires balanced, did not change the issue. It is about a 15 Hz vibration, meaning 15 pulses per second, and it's not a heavy vibration. The steering wheel is dead still, no vibration there. Vibration was there on the test drive before purchase, now 2000 miles. Is this normal? Am I feeling the road? It is the transmission? Yes I'm probably going to the dealer with this, but wanted your collective input first. Thanks.
#21
2018 Max SV has slight vibration when on the highway, all road surfaces, some worse than others. I feel it in my butt and back. I had all 4 tires balanced, did not change the issue. It is about a 15 Hz vibration, meaning 15 pulses per second, and it's not a heavy vibration. The steering wheel is dead still, no vibration there. Vibration was there on the test drive before purchase, now 2000 miles. Is this normal? Am I feeling the road? It is the transmission? Yes I'm probably going to the dealer with this, but wanted your collective input first. Thanks.
#22
Rear tire balance for sure, based on what you've said, regardless of whether you just had them balanced. Have them give it another go. Prior to this you could ask them to rotate the rear wheels/tires 180 degrees and bolt them back up. This sometimes helps. Make sure dealer is using a Hunter 9700 Road Force, which also measures run-out. Ask to look at the printed results.
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