Last post on Nov 30, 2013 at 8:13 AM
You are in the Lexus GS
What is this discussion about?
Lexus GS 300, Lexus GS 430, Sedan
#133 of 305 Re: 1999 gs400 engine shut off [stephanie5]
May 13, 2006 (9:44 am)
Wow, a thousand bucks right out of the gate? What is a throttlebody anyway, it's not underneath the discombobulator, is it???
As I mentioned in an earlier post, I just bought my first lexus, a used 02 GS 300, a month ago and this has now happened to me twice. The car seems to turn off as I come to a stop at a traffic light. No problem restarting, just very weird feeling!
I believe my car is officially under warranty until next february -- would this be a warranty issue?
Thanks for your thoughts on this!
#134 of 305 Re: 1999 gs400 engine shut off [new2lexus]
May 13, 2006 (4:30 pm)
ahh - the vehicle shutting down is a definite problem. yeah - it should be covered under a warranty, even if it is one of those 30day types.
your idle setting could be bad.
you might have a faulty ignition switch or fuel pump relay.
it could be your idle bypass valve.
it could be a connection to the ECU.
better bring it in.
#135 of 305 Re: 2006 GS300 AWD Problems [scott9393]
May 15, 2006 (1:48 pm)
Appreciate you could share your Lexus experience. I do have the same feeling that lack of confidence while driving my 2006 GS300 AWD. Dealer told me due to the weakness from the suspension parts, car will not drive like new. Problem is, my car already change its character in just less than 10,000 miles. This could be the differences between Japanese car and European car.
The steering wheel somewhat feel lighter than it used to be. I am not sure if this is related to why the car is so sensitive to the road surface. The suspension seems unable to absorb any road feel. It send the vibration direct to the under body. I try to change tire pressure every couple of days to see if I can find the right tire pressure. I tried from factory recommended 33 psi front and rear, 33 front/ 35 rear, 32 front and rear, 33 front/ 36 rear... I even put about 100 pound of old magazine and my golf club in the trunk to lower down the vehicle height. So far, I have not found the right tire pressure yet. Yesterday, I went back to the dealer to check the tire pressure on its demo car. It seems the dealer put 35 - 36 psi on all four tires. It is 3 psi higher than the factory recomanded tire pressure. The tire on the demo car is the same as my origin Dunlop 5000 RFT A/S came from the factory. Since I could not find the right tire pressure, I will now focus on the suspension system.
Hopefully, I do not have to give up this car. Which is only in my garage for less than 9 months.
#136 of 305 Re: 1999 gs400 engine shut off [user777]
May 17, 2006 (5:18 pm)
Thanks for your reply -- very helpful. You know, I didn't think it was SUPPOSED to do that...
I was hoping you might be able to narrow from your four possibilities a bit if I gave you a few more symptoms?
It has happened now four times in about 2k miles, so it's not very common, just very annoying.
It only seems to happen when I'm decelerating (coming to a light or into the driveway).
It may be my imagination but I think I can hear the radio cut in and out a few seconds before the engine shuts off.
Last, if I release the brake and keep rolling, the car has come back on, and I just keep on truckin' down the road.
Pretty weird, huh?
Thanks again for your help!
#137 of 305 Re: 2006 GS300 Tire noise [jlafrance]
May 21, 2006 (4:12 pm)
Have you solve your tire noise problem? Which tire did you choose? How does it work?
I switch to Michelin Pilot A/S two weeks ago. Which is a high performance all season tire. This tire is quiter that the OE Dunlop RFT tire.
#138 of 305 2006 Gs Rough Ride
May 25, 2006 (8:39 pm)
I was told by the Lexus service advisor that many customers complaint about rough ride on 06 GS models. They also recommend replacing the run flat tire to normal tire. Recently after I replace my tire to regular tire, the rough ride is still there. Car actually sends all kinds of road feel to the driver.
This morning, after my friend test drove my car. On the road, he told me the car drive like a 15K instead of current 50K. I told him that I have exactly the same feeling like him. My friend told me it could be a suspension problem because the car is vibrate and shaking in all directions. He does not feel full control of the car.
I keep asking myself, am I the only owner who has this kind of problem?
#139 of 305 Re: 2006 Gs Rough Ride [ce5288]
May 26, 2006 (4:06 pm)
Now about 1300 miles through a trip to east coast with a total of about 4000 miles on the car.
ride is silky smooth and quiet. I expect that the wear on the soft rubber tires will result in poor ride at about 10K miles or so just like my Jag. I have regular tires on the GS300 - Yokohamas.
only real issue is with either the transmission or throttle control in the mountains when it would jolt me. Not nearly as good as the Jag transmission.
#140 of 305 Re: 2006 Gs Rough Ride [donbl]
May 27, 2006 (5:59 pm)
I went back to the dealer found out the surface on the new Dunlop run-flat tire is softer than what I had now. I think that the ware and the temperature will change the rubber's chemical. My car reach 10,000 mile during winter. No wonder the ride comfort is not as smooth as when it was new. Just like today is at around 80F in New Jersey. The ride comfort seems better than in the 50F or even below 40F.
#141 of 305 More on Tires
May 31, 2006 (11:24 am)
Bought a used 2006 RWD with 10K miles about a month ago. Noticed noise and vibration from the front-end, especially at low speeds and when braking, almost from the first day. Took it back to dealer thinking brake pads could be shot? Dealer says no, "these tires just make a lot of noise --especially when they have a few miles on them." (Dunlop OEM's) Asked my salesman to take a ride with me afterwards and he says there is NO WAY the tires should be making that kind of racket --you can actually feel it through the floorboard on the PASSENGER side. Anyway, back to the dealer yesterday for a "second-look."
At this point I just want to get some decent tires. What does everyone suggest?
May 31, 2006 (8:16 pm)
I have used Michelins on all my vehicles for the past 25 years. Currently run Michelin LTX M/S 265 70 R16 at 36 psi minimum inflation for good handling and mileage on my 2002 Sequoia Limited RWD.