- #157 of 202
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Re: RX400 slight noise problem [hilandr05]
by roycrawf
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Mar 20, 2006 (11:37 am)
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Replying to: hilandr05 (Mar 15, 2006 5:51 pm)
On our Highlander the license plate was fluttering. On the RX400 the latches for the self retracting cover were rattling. Took a while to find both. For the latches, just push them down into the latched position when the cover is not installed.
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- #159 of 202
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Re: RX400 slight noise problem [roycrawf]
by mkkid
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Mar 22, 2006 (11:04 am)
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Replying to: roycrawf (Mar 20, 2006 11:37 am)
It took my more flexible son contorted in the luggage area of my 400h to find this same rattle. It's exactly what you found and repositioning the latches stopped a noise that drove me nuts for an entire 4 mo vacation trip!! Told my dealer, but they seemed amazed like no one else had ever complained about it.
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- #160 of 202
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Re: RX400 slight noise problem [mkkid]
by lexrexblue
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Mar 22, 2006 (6:08 pm)
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Replying to: mkkid (Mar 22, 2006 11:04 am)
The dealer installed some little adhesive sound insulators on my latches. It seems to be working. They heard the sound, too.
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- #161 of 202
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Re: RX400 slight noise problem [hilandr05]
by andyski
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Mar 24, 2006 (9:18 am)
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Replying to: hilandr05 (Mar 15, 2006 5:51 pm)
Just got my RX back from the dealer yesterday. I brought it in for (among other things) the same issue. Mine turned out to be an exhaust system heat shield under the vehicle, which I suspected originally. That's why you hear it from the battery vents: the soundproofing probably isn't as thick there. They "made an adjustment" and now the sound is gone!
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- #164 of 202
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Re: RX400 slight noise problem [andyski]
by colomark
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Mar 27, 2006 (6:46 am)
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Replying to: andyski (Mar 24, 2006 9:18 am)
Is there any chance you can provide contact information for the dealer that fixed this? My RX400 does exactly the same thing and beyond adding some insulation on the battery vent sheet metal they have not been able to identify the problem. Maybe I can get them to call your dealer. The battery did ratle, but the main noise changes with the wind so I knew it wasn't the only problem.
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- #165 of 202
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Re: RX400 slight noise problem [colomark]
by andyski
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Mar 27, 2006 (9:10 am)
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Replying to: colomark (Mar 27, 2006 6:46 am)
No problem. It's Hoffman Lexus in East Hartford CT. Their web site is http://nitra.lexusdealer.com/hoffman/en_US/. While I was there I asked them to do the ISC learing procedure, since my mileage was only averaging about 21.5 mpg with mixed city/highway driving. They did the procedure and my mileage increased by approx. 2 mpg. I noticed that the electric motors run a lot more now, especially once the engine heats up. Good luck with your issue!
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- #166 of 202
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It seems to me....
by wwest
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Mar 27, 2006 (9:39 am)
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that if the need for the catalyst being kept up to temperature is the reason the ICE needs to be run more often/longer than otherwise why not provide a good insulation jacket for the catalyst such that it does not cool so rapidly.
The only shortcoming I can see would be the possiblity of overheating the catalyst when the ICE is REQUIRED to run continuously. Seemingly that problem could be easily overcome via the activation of a blower system to reduce the overheating probability.
More weight and complexity but that would be more than overcome by the improvement in FE.
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