Last post on Jun 13, 2013 at 11:06 AM
You are in the Lexus LS 400/LS 430
What is this discussion about?
Lexus LS 400, Lexus LS 430, Sedan
#8021 of 8465 Re: Old Lexus LS 400 in Snow ? [2driveright]
Nov 20, 2006 (11:18 am)
I would NEVER intentionally take my 1992 LS400 out in the snow when the roads are expected to be slippery. Were I to get "trapped" in such a situation the very first thing I would do is turn off the totally useless and occasionally unsafe traction control.
The 92 traction control system will INSTANTLY dethrottle, FULLY, the engine upon even any minor level of wheelspin/slip. THAT can lead to a few moments of "heart in throat" events, no way to move out of harms way until the ECU slowly releases the throttle.
Back when it was my primary driver I toyed with the idea of modifying it so the traction control defaulted into "off". As it was I just tried to remember to always turn it off whenever I started the engine.
And so I certainly would not buy one, nor advise anyone else to buy one, to be used specifically as a "winter car".
I survived many winters in central MT with only RWD vehicles and those were fine for that time. But today too many "better" options are available. And my advice would be to avoid, completely, any FWD or front torque biased AWD vehicle. Well, maybe the Acura RDX' SH-AWD if you can stand the "busiiness" of the dash clutter and ignore the owners manual edict about using tire chains only on the front.
Numerous back and forth phone calls to Acura engineering and in the end all they could tell me was that the statement in the manual might be a typo, they couldn't find any reason, support, for the statement.
Speaking as someone who's earliest driving experiences (1958), "training", (outside of farm tractors and mules) was on the ice and snow covered ramps of Pease AFB just outside Portsmouth NH.
#8022 of 8465 Re: Old Lexus LS 400 in Snow ? [wwest]
Nov 20, 2006 (5:56 pm)
This is exactly the kind of info I was looking for. I really appreciate your input.
The 91 LS400 that I'm considering doesn't have the traction control option so I won't have to think about it. As I said in my post my rear drive Cressida was great in the snow with snow tires on just the rear wheels. It might have been even better with snows on all 4.
I'm not paying a lot of money for the Lexus so I'm not worried about the adverse affects to the car - just how it might handle.
#8023 of 8465 93 Lexus LS 400 White Smoke from Exhaust
Nov 24, 2006 (3:44 pm)
Hello! First time posting here so I am not sure what to expect. My problem is this, I bought my wife a 93 Lexus LS 400 about a year ago. It has roughly 200k miles on it, but is in great condition. We have not had any problems until recently. White smoke is coming out of the exhaust upon starting the car, it does not last for more than a minute or two, but is giving my wife concern, which means it is giving me concern. Does any one have any recommendations as to what the problem may be. Going to Lexus to pay their diagnosis & repair cost is out of the question, I only paid $3000 for the car and would hate to go beyond that since it is just a ride around town car.
Thank you for any help you may be able to provide.
#8024 of 8465 Re: 93 Lexus LS 400 White Smoke from Exhaust [93lexus]
Nov 26, 2006 (4:48 pm)
Hope someone can help you. If no response on this forum, suggest you talk to a Lexus service rep and ask what he thinks might be the problem. Or talk to a local repair shop mechanic which specializes in Japanese cars. Good luck.
#8025 of 8465 Re: 93 Lexus LS 400 White Smoke from Exhaust [rgsw]
Nov 27, 2006 (2:11 pm)
Years ago I had a Firebird that had a lot of miles on it. It too smoked for a short period after starting. The problem was bad/worn valve stem seals which allowed oil to seep into the cylinder heads when the engine wasn't running and burn off when the engine was started creating the white smoke. If it is valve stem seals, they are not too expensive to replace however I would suspect your mechanic will want to do a complete valve job which is a little more costly.
Bill - Northwest IN - Shade tree mechanic in a previous life-
#8026 of 8465 Re: 93 Lexus LS 400 White Smoke from Exhaust [93lexus]
Nov 27, 2006 (6:38 pm)
White smoke is either steam or coolant. Oil smoke is blue, fuel is black. The smoke is water or coolant boiling and then coming out the exhaust as vapor.
If the weather is cold, water will condense in the exhaust system after shutdown, then come out as steam on startup. This is OK. If you see the smoke after driving on the highway for an hour or it is an all-the-time event, you have a problem.
If you have a problem, most likely, at this age, it is a leaking head gasket. Possibly the cylinder head is cracked. Valve problems are possible but less likely. Keep track of how much coolant you add to keep it at the full mark. Obviously, this is expensive to fix.
Hope for the best.....
#8027 of 8465 Acceleration
Dec 04, 2006 (1:02 pm)
I have a 2005 LS430 with just under 12K miles. When I punch the gas pedal, it hesitates. Does anyone have any thoughts before I ask the dealer to help me here?
#8028 of 8465 Re: Acceleration [pietwo]
Dec 04, 2006 (5:54 pm)
I imagine the "hesitation" you are experiencing is the transmission is not reacting (down shifting) quick enuf. There is a software update that I have read about that can be performed to alieviate this problem. Do a "search" at the top of this forum by entering "hesitation" and you will find numerous comments regards the problem.
#8029 of 8465 Re: Acceleration [pietwo]
Dec 04, 2006 (6:14 pm)
There is a button right below you CD changer that has "Power/Normal/Snow" written on it. This controls the throttle...If you are a maniac driver and want this trait of yours not to get your passengers sick, then set the button on normal or snow...this will make throttle less responsive...but if you want throttle not to hesitate...then chose the power mode...this will make the throttle more responsive and I believe it will also downshift more quickly to give you more power when you hit gas...keep in mind this car was not designed for hauling ass...more for smoooooooooooooth acceleration...so even in power mode, you might need to floor it to get the power you want...Oh, it might also be the 6-speed tranny...so, try manual stick shift...put it in the 3rd range for local roads and 4th on the highways and you will not likely to complain about lack of power...this car will truly haul ass...but gas mileage will suffer...and you will hear more noise...be careful not to go over 90mph in the 3rd range, as this will take you into the red zone...you don't have to worry about downshifting in the manual mode...the car will do it for you, so 3 means, 1,2,3 automatically, but not higher than 3; 4 means 1,2,3,4 automatically, but not higher than 4, etc...Enjoy!!!!!!
#8030 of 8465 Re: Acceleration [pietwo]
Dec 04, 2006 (10:13 pm)
I have a 2005 LS430 with just under 12K miles. When I punch the gas pedal, it hesitates.
Ask your dealer to re-program the car's computer per Technical Service Bulletin TC006-04; everyone who has had this done has reported the issue resolved.