Rattle from rear at low speeds and idle
05-11-18, 09:15 AM
#1
Rookie
Thread Starter
Rattle from rear at low speeds and idle
Anyone had an issue with a low sounding rattle coming from what sounds like the underbody part of the RX at very low speeds and idle? It could even sound like a sucking sound like you would hear from a straw. Dealer cannot replicate of course.
05-20-18, 07:05 AM
#2
Driver School Candidate
Doe it happen conistently all the time?
05-20-18, 08:12 AM
#3
Rookie
Thread Starter
Unfortunately it doesn’t happen all the time and has made it difficult to pinpoint and will be even more difficult to convince the dealer there is a problem. My issue does sound like what you described as it did resonate throughout the cabin and when I tried to locate the cause, seemed to come from the back near the gas tank, but under the car.
07-21-18, 08:44 PM
#4
Rattle sound
I highly encourage ALL current gen RX owners to go ahead and test this out.
I've been encountering the same issue for about a year now. The rattling sound apparently comes from the gas tank, caused by high pressure when the tank is full. It has something to do with the design of the entire filler system. I had my dealership take a look at it for the past 9 months, and they even had the FTS follow up with it. It's an issue that they even had with the Toyota Highlander.
They told me that they cannot resolve the issue, unless they receive a higher number of complaints about the noise, since it would most probably require a redesign (and R & D) of the filler system.
So, if you guys want to reproduce the noise (if it is in fact the same one I've been encountering), then the method that the service manager had told me to do so, was to fill up the gas tank beyond the first click at the gas pump. I actually confirmed this when I had a current gen RX loaner, and filled up the gas tank beyond that first click. Shortly after leaving the fuel station, I had heard the exact same rattling noise on the loaner, that I did on my RX!
I would greatly appreciate if you guys would try this on your RX's to see if you can reproduce the rattling noise. If so, then please let your service department know, so that we can get enough complaints in order for Lexus to raise concern and potentially find a solution to this!
I've been encountering the same issue for about a year now. The rattling sound apparently comes from the gas tank, caused by high pressure when the tank is full. It has something to do with the design of the entire filler system. I had my dealership take a look at it for the past 9 months, and they even had the FTS follow up with it. It's an issue that they even had with the Toyota Highlander.
They told me that they cannot resolve the issue, unless they receive a higher number of complaints about the noise, since it would most probably require a redesign (and R & D) of the filler system.
So, if you guys want to reproduce the noise (if it is in fact the same one I've been encountering), then the method that the service manager had told me to do so, was to fill up the gas tank beyond the first click at the gas pump. I actually confirmed this when I had a current gen RX loaner, and filled up the gas tank beyond that first click. Shortly after leaving the fuel station, I had heard the exact same rattling noise on the loaner, that I did on my RX!
I would greatly appreciate if you guys would try this on your RX's to see if you can reproduce the rattling noise. If so, then please let your service department know, so that we can get enough complaints in order for Lexus to raise concern and potentially find a solution to this!
07-22-18, 07:32 AM
#5
Racer
I highly encourage ALL current gen RX owners to go ahead and test this out.
I've been encountering the same issue for about a year now. The rattling sound apparently comes from the gas tank, caused by high pressure when the tank is full. It has something to do with the design of the entire filler system. I had my dealership take a look at it for the past 9 months, and they even had the FTS follow up with it. It's an issue that they even had with the Toyota Highlander.
They told me that they cannot resolve the issue, unless they receive a higher number of complaints about the noise, since it would most probably require a redesign (and R & D) of the filler system.
So, if you guys want to reproduce the noise (if it is in fact the same one I've been encountering), then the method that the service manager had told me to do so, was to fill up the gas tank beyond the first click at the gas pump. I actually confirmed this when I had a current gen RX loaner, and filled up the gas tank beyond that first click. Shortly after leaving the fuel station, I had heard the exact same rattling noise on the loaner, that I did on my RX!
I would greatly appreciate if you guys would try this on your RX's to see if you can reproduce the rattling noise. If so, then please let your service department know, so that we can get enough complaints in order for Lexus to raise concern and potentially find a solution to this!
I've been encountering the same issue for about a year now. The rattling sound apparently comes from the gas tank, caused by high pressure when the tank is full. It has something to do with the design of the entire filler system. I had my dealership take a look at it for the past 9 months, and they even had the FTS follow up with it. It's an issue that they even had with the Toyota Highlander.
They told me that they cannot resolve the issue, unless they receive a higher number of complaints about the noise, since it would most probably require a redesign (and R & D) of the filler system.
So, if you guys want to reproduce the noise (if it is in fact the same one I've been encountering), then the method that the service manager had told me to do so, was to fill up the gas tank beyond the first click at the gas pump. I actually confirmed this when I had a current gen RX loaner, and filled up the gas tank beyond that first click. Shortly after leaving the fuel station, I had heard the exact same rattling noise on the loaner, that I did on my RX!
I would greatly appreciate if you guys would try this on your RX's to see if you can reproduce the rattling noise. If so, then please let your service department know, so that we can get enough complaints in order for Lexus to raise concern and potentially find a solution to this!
The solution seems so simple that I'm probably NOT understanding you correctly!!
07-22-18, 07:40 AM
#6
It usually goes away once the level of the fuel dips below 3/4 full. Give it a shot, and see if you actually hear the noise. Just make sure to fill with fuel to the brim, then drive it around for a bit. You should be able to hear it at very low speeds (coming from the driver's side underbody in the rear).
07-22-18, 09:30 AM
#8
Rattle is the signature of Lexus, don't complaint and try to fix about it, and I can tell you the dealer can make it even worse by my experience with five Lexus in the past.
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08-07-22, 11:20 AM
#10
1st Gear
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I highly encourage ALL current gen RX owners to go ahead and test this out.
I've been encountering the same issue for about a year now. The rattling sound apparently comes from the gas tank, caused by high pressure when the tank is full. It has something to do with the design of the entire filler system. I had my dealership take a look at it for the past 9 months, and they even had the FTS follow up with it. It's an issue that they even had with the Toyota Highlander.
They told me that they cannot resolve the issue, unless they receive a higher number of complaints about the noise, since it would most probably require a redesign (and R & D) of the filler system.
So, if you guys want to reproduce the noise (if it is in fact the same one I've been encountering), then the method that the service manager had told me to do so, was to fill up the gas tank beyond the first click at the gas pump. I actually confirmed this when I had a current gen RX loaner, and filled up the gas tank beyond that first click. Shortly after leaving the fuel station, I had heard the exact same rattling noise on the loaner, that I did on my RX!
I would greatly appreciate if you guys would try this on your RX's to see if you can reproduce the rattling noise. If so, then please let your service department know, so that we can get enough complaints in order for Lexus to raise concern and potentially find a solution to this!
I've been encountering the same issue for about a year now. The rattling sound apparently comes from the gas tank, caused by high pressure when the tank is full. It has something to do with the design of the entire filler system. I had my dealership take a look at it for the past 9 months, and they even had the FTS follow up with it. It's an issue that they even had with the Toyota Highlander.
They told me that they cannot resolve the issue, unless they receive a higher number of complaints about the noise, since it would most probably require a redesign (and R & D) of the filler system.
So, if you guys want to reproduce the noise (if it is in fact the same one I've been encountering), then the method that the service manager had told me to do so, was to fill up the gas tank beyond the first click at the gas pump. I actually confirmed this when I had a current gen RX loaner, and filled up the gas tank beyond that first click. Shortly after leaving the fuel station, I had heard the exact same rattling noise on the loaner, that I did on my RX!
I would greatly appreciate if you guys would try this on your RX's to see if you can reproduce the rattling noise. If so, then please let your service department know, so that we can get enough complaints in order for Lexus to raise concern and potentially find a solution to this!
08-08-22, 06:22 AM
#11
Why anyone would overfill their tank is way beyond me!
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ravenuer (08-08-22)
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