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Lexus GS 350

284 messages,  Last post on Sep 28, 2009 at 10:29 AM

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What is this discussion about? Lexus GS 350, Sedan


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#201 of 284
Re: engine tapping [blacklexus1] by jon75
Nov 06, 2008 (12:51 am)
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Replying to: blacklexus1 (Oct 06, 2008 6:31 pm)

This car has a direct injection system, and a steel timing chain, which is unusual in today's cars, but is necssary to get the performance that you enjoy in the GS350. The "tapping" was there when you bought the car. A more conventional port injected system would produce a quieter engine, but you would lose performance. How many cars do you know of that produce 303 HP and can get 27-28 mpg on the highway? I have an 07 GS350, and my complaints are not with the engine noise, I understand that, but with the creaks and rattles in the cabin.
#202 of 284
Re: New TSB to Address Brake Noise [chucko3] by jon75
Nov 06, 2008 (12:55 am)
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Replying to: chucko3 (Oct 29, 2008 6:57 pm)

The ticking windshield is covered under a TSB. The squealing brakes are also covered under a TSB, and they will replace the front pads, machine the rotors, without charge, if you ask them. Both fixes worked great.
#203 of 284
Re: engine tapping [jon75] by ben721364
Nov 06, 2008 (7:23 am)
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Replying to: jon75 (Nov 06, 2008 12:51 am)

The General Motors di 6 cyl. engine produces similar hp, torque and fuel efficiency and is quieter...
#204 of 284
Re: New TSB to Address Brake Noise [jon75] by chucko3
Nov 06, 2008 (6:10 pm)
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Replying to: jon75 (Nov 06, 2008 12:55 am)

I have the TSB. But I am not ready to bring the car in yet.
If the ticking noise is unbearable, then I will.
 
My 07GS350 AWD has a run flat tires. I don't know if it's the tires
or not. It happens very time when I let my foot off the gas pedal
at speed 65 mph.
The speed slowly gets to the 60 mph, then I hear a gentle whistling sound from the front wheels. The sound goes away
 when speed goes below 55 OR if I keep my foot on the gas
pedal and keep the speed steady at 60 mph.
Does anyone experience the same thing?
#205 of 284
by ben721364
Nov 07, 2008 (3:00 am)
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As regards the run flat tires, I have owned/driven two cars with them and both were noisy, embarrassingly so. In each instance, they were relatively quiet for the first few thousand miles, then got progressively worse. They [run flats] don't provide much feedback from the road either.
#206 of 284
Run flat tires by rgallucci
Nov 07, 2008 (7:18 am)
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I had serious pulling issues on uneven roads with the run flat tires on my GS350. The dealer replaced them with Michelin all season tires and the issue cleared up. Great tires, and I am now a fan of Michelin tires.
#207 of 284
Re: New TSB to Address Brake Noise [chucko3] by jon75
Nov 11, 2008 (1:49 pm)
Reply

Replying to: chucko3 (Nov 06, 2008 6:10 pm)

I have not experienced the whistling noise you refer to. I guess it could be the run flat tires. I am not a big fan of them, either. When I replace them, it will not be with run flats. Maybe that will help with some of the creaks and rattles, too. That's my Christmas wish.
#208 of 284
by ben721364
Nov 11, 2008 (2:16 pm)
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Run flat tires are a good idea for the future but are not yet ready for prime time; based on my experience with two run flat tire equipped cars.
#209 of 284
Re: New TSB to Address Brake Noise [jon75] by chucko3
Nov 15, 2008 (12:26 pm)
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Replying to: jon75 (Nov 11, 2008 1:49 pm)

Got my passenger's side mirror assembly replaced yesterday.
The mirror didn't go up or down.
Next the inner rear mirror. There is a TSB for it.
Need to confirm if the mirror vibrates when the moon roof
opens at high speed.
#210 of 284
Re: New TSB to Address Brake Noise [chucko3] by datrib
Nov 15, 2008 (8:07 pm)
Reply

Replying to: chucko3 (Nov 15, 2008 12:26 pm)

The side mirrors are interesting. My D/S wouldn't go up and down so took it to dealer. They said nothing wrong with em and the mirror worked when I picked up the car... A few days later it went out again and I took it back to dealer .. same thing. So they ordered a new mirror but by the time the mirror was shipped to the dealer my mirror miraculously started working on its own. Hmmm..

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