Rhythmic thumping noise with increased speed

Rhythmic thumping noise when car's moving - Car Talk

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Jun 4, 2013 - Hello, I have started hearing faint thumping noise in my Murano, coming from the front most likely.

Here are the only reason that can cause a thumping noise

1. Wheel and Tire Problems
   • Wheels can become bent from striking objects, and tires can develop bulges from broken belts or wear. Both problems may cause a thumping noise. Thumping sounds caused by wheel and tire problems will typically increase in frequency at higher speeds, though the sound may not be heard at lower speeds. These problems can often be spotted by visual inspection.
   Suspension Problems
   • Worn or broken struts or strut mounts can create a thumping noise, especially when the vehicle hits a bump in the roadway. To test struts, bounce the rear of the car by forcefully pushing down on it and letting go. After letting go, the car should settle back to its original position without bouncing or noise.
   Loose Trim
   • Loose trim pieces near or in the wheel well can flutter in the wind while a car is being driven. These trim pieces may create a thumping noise as they strike other objects. A car owner can check trim pieces for looseness to determine if that is the source of the noise.

Hope this helps

Seem like your front roller bearings are knocking. Remove the drive belt. Turn machine on. Replace roller if noise goes away with drive belt off.

Run the software calibration for easy diagnostic and fix it.
God bless you

Many times, rear tires that are out of round or severely cupped or feathered, or that are out of balance can create this type of issue. My first recommendation would be to have them and the wheels on the rear of the car inspected. There may not seem like there is much wrong visibly if you look at just the tread of the tires, but a good tire tech can spin them up and give you some solutions, and the inspection itself is inexpensive. Hope this helps.

Hi,

It sounds like you have a drive motoer failing. The only other place that can be load or making noise is the front and rear roller. The rollers bearings when failing make a "popping" or "clicking" noise, and increases as you speen up. The motor "growls", and the faster you go the noise is..... well loud. The way to confirm this is to remove the motor hood, then start the treadmill on power/speed level 3. Be very carefull, and use a broom stick (wooden) to put on the drive motor while it is running. You should be able to "feel" what you are hearing. You should then raise the speed, and you will then feel the increase as well.

The replacement motor is around $200.00.

Hope this helps

If you need further help, I’m available over the phone at https://www.6ya.com/expert/matt_8dbc24bf722649ac

The sound you hear sounds like a main wheel bearing.Because it increases when you make a left it is 100% on that side.I would start there and check the other components as you go. Good Luck

If u r seeing the increasing variation takeing effect on the panel but the speed does not increase in real, then there is nothing wrong with the push button for sure.
what it could be is ,
1. Your motor is getting overheat quickly and does not accept the higher speed commands.
2. it could be a belt slip also (do u hear any extra noice / vibration when u increase speed)
3. next time, pls unplugg the unit for atleast 4 hrs and when u start after that increse the speed very next moment and see if it works. if it does increase this way then it is time take look first on the belt ans then check the motor.

Good luck.

OPEN MOTOR SHROUD SO YOU CAN BETTER INSPECT THE UNIT CHECK THE DRIVE BELT THEN I WOULD CHECK THE RUNNING BELT TO SEE IF THEIR IS ANY DEBRIS THAT THE BELT ITSELF IS SPLITTING SINCE YOUR SAY A THUMPING SOUND. SINCE KEYS FITNESS MADE THIS UNIT THEY ARE NO LONGER IN BUSINESS, BUT TREADMILL DOCTOR HAD PURCHASED THE PARTS. SO GO TO TREADMILL DOCTOR.COM THEY MAY HAVE THE PARTS YOU NEED

If this is brand new, then it should be under warranty. Call the manufacturer or take it back to the store.