Here we go!! We do have the acceleration problem!!!
03-20-10, 04:05 PM
#61
Lexus Fanatic
shouldnt the car be warm by the time you set off? I live in a warm climate and I warm up my car. About 40 sec after start the cars rpm drops to normal. I am glad I dont live in an area that gets snow.....ever
03-21-10, 06:22 AM
#62
I8; in a perfect world, yes the car should be warm but when it's bitter cold (below zero), it sometimes takes several minutes to warm up and even if you keep the car in the garage like I do, when you pull the car outside it still goes into high idle since it's so cold. If it's bitter cold, the car will sometimes stay on high idle for several minutes.
03-21-10, 07:22 AM
#63
Actually, both my GS have had isolated episodes of sudden acceleration.
Normally, I warm my car until the rpms go down on it's own before engaging. The particular morning I was late and engaged without the warm-up. The dang car took off. I jammed the brakes, put the car in neutral for a couple minutes to let it warm. The rpms reduced but not like normal. I continued on to work, after a few minutes of driving, the car returned to normal operation.
My wife reported a similar incident. Now, we both warm the car everytime before driving off.
It was a little scary but I didn't panic.
If it happens again after my warming ritual, then I'll
know there is a problem and the car is going to the dealer.
Normally, I warm my car until the rpms go down on it's own before engaging. The particular morning I was late and engaged without the warm-up. The dang car took off. I jammed the brakes, put the car in neutral for a couple minutes to let it warm. The rpms reduced but not like normal. I continued on to work, after a few minutes of driving, the car returned to normal operation.
My wife reported a similar incident. Now, we both warm the car everytime before driving off.
It was a little scary but I didn't panic.
If it happens again after my warming ritual, then I'll
know there is a problem and the car is going to the dealer.
03-22-10, 09:07 AM
#64
I just think it is a ridiculous waste of gas and time to have to wait for 10-15 minutes for the car to warm up in the winter before you can drive it anywhere. I can get warm air out of the vents in 3-4 minutes, but it can still take 10-15 minutes for the idle RPM to finally drop. I have never had a car before this one that required a full warm up before it would operate properly.
03-22-10, 11:11 AM
#65
I understand your point help. I only know that several changes have been made in the last several years to improve the performance of heaters. For example, in my Yukon, the heater hoses went directly to the radiator and not to the block. Consequently, it was able to deliver heat in a just a couple minutes but the engine (including the thermostat) was no where near warm when I was getting warm air through the vents. It was GMC's little way to deliver heat before warm up was accomplished and I wonder if the Lexus is engineered to do the same thing. I haven't looked so I don't know but it wouldn't surprise me to see a similar arrangement.
03-22-10, 12:50 PM
#66
Actually, both my GS have had isolated episodes of sudden acceleration.
Normally, I warm my car until the rpms go down on it's own before engaging. The particular morning I was late and engaged without the warm-up. The dang car took off. I jammed the brakes, put the car in neutral for a couple minutes to let it warm. The rpms reduced but not like normal. I continued on to work, after a few minutes of driving, the car returned to normal operation.
My wife reported a similar incident. Now, we both warm the car everytime before driving off.
It was a little scary but I didn't panic.
If it happens again after my warming ritual, then I'll
know there is a problem and the car is going to the dealer.
Normally, I warm my car until the rpms go down on it's own before engaging. The particular morning I was late and engaged without the warm-up. The dang car took off. I jammed the brakes, put the car in neutral for a couple minutes to let it warm. The rpms reduced but not like normal. I continued on to work, after a few minutes of driving, the car returned to normal operation.
My wife reported a similar incident. Now, we both warm the car everytime before driving off.
It was a little scary but I didn't panic.
If it happens again after my warming ritual, then I'll
know there is a problem and the car is going to the dealer.
I think you just need a tune-up. That or something has failed. I don't think the issue a built-in design issue.
I would go to the dealer and describe the issue. If they don't recognize it then leave one of your cars at the dealer overnight. Go back in the morning, park it next to a brand new car and ask the dealer to do a test where they put both in D and see what happens.
03-22-10, 02:54 PM
#67
I don't buy the notion that the car took off with rapid acceleration due to high idle due to warm-up. When I was in Atlanta over Christmas the temperatures were well below freezing one week and I never had this issue on my GS460 or on our ES350 in Atlanta. The difference in starting acceleration between the high idle and low idle in those conditions was still barely noticeable on either car.
I think you just need a tune-up. That or something has failed. I don't think the issue a built-in design issue.
I would go to the dealer and describe the issue. If they don't recognize it then leave one of your cars at the dealer overnight. Go back in the morning, park it next to a brand new car and ask the dealer to do a test where they put both in D and see what happens.
I think you just need a tune-up. That or something has failed. I don't think the issue a built-in design issue.
I would go to the dealer and describe the issue. If they don't recognize it then leave one of your cars at the dealer overnight. Go back in the morning, park it next to a brand new car and ask the dealer to do a test where they put both in D and see what happens.
The problem is that the Lexus Field Technical Specialist will not let you try to duplicate the problem with them, and will completely avoid the situation.
03-22-10, 04:38 PM
#68
Actually, both my GS have had isolated episodes of sudden acceleration.
Normally, I warm my car until the rpms go down on it's own before engaging. The particular morning I was late and engaged without the warm-up. The dang car took off. I jammed the brakes, put the car in neutral for a couple minutes to let it warm. The rpms reduced but not like normal. I continued on to work, after a few minutes of driving, the car returned to normal operation.
My wife reported a similar incident. Now, we both warm the car everytime before driving off.
It was a little scary but I didn't panic.
If it happens again after my warming ritual, then I'll
know there is a problem and the car is going to the dealer.
Normally, I warm my car until the rpms go down on it's own before engaging. The particular morning I was late and engaged without the warm-up. The dang car took off. I jammed the brakes, put the car in neutral for a couple minutes to let it warm. The rpms reduced but not like normal. I continued on to work, after a few minutes of driving, the car returned to normal operation.
My wife reported a similar incident. Now, we both warm the car everytime before driving off.
It was a little scary but I didn't panic.
If it happens again after my warming ritual, then I'll
know there is a problem and the car is going to the dealer.
03-22-10, 05:37 PM
#69
I don't buy the notion that the car took off with rapid acceleration due to high idle due to warm-up. When I was in Atlanta over Christmas the temperatures were well below freezing one week and I never had this issue on my GS460 or on our ES350 in Atlanta. The difference in starting acceleration between the high idle and low idle in those conditions was still barely noticeable on either car.
I think you just need a tune-up. That or something has failed. I don't think the issue a built-in design issue.
I would go to the dealer and describe the issue. If they don't recognize it then leave one of your cars at the dealer overnight. Go back in the morning, park it next to a brand new car and ask the dealer to do a test where they put both in D and see what happens.
I think you just need a tune-up. That or something has failed. I don't think the issue a built-in design issue.
I would go to the dealer and describe the issue. If they don't recognize it then leave one of your cars at the dealer overnight. Go back in the morning, park it next to a brand new car and ask the dealer to do a test where they put both in D and see what happens.
My theory is that it happened becaused I normally warm up my car everyday, year round until the rpms drop. This one day it was extremely cold and I didn't warm the car. I have taken off without warm-up once or twice in warm weather with no issues.
It was an isolated event and I am not concerned about it....just reporting the incident.
03-22-10, 06:59 PM
#70
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1) "lurch" just as you lifted your foot off the brake, or
2) was there a lag from when you lifted your foot off the brake to when it accelerated rapidly?
In case 1), it would just seem like a high idle issue. I've had this happen every once in a while in cold weather: it will be idling "rich" (north of 2K RPM's) after a minute or so of warm up.... if I shift into drive while it idles "rich" like that, yeah, it lurches alright (compared to "normal"). I've learned to just rev the engine slightly and it goes back down to just over 1K
In case 2), could the car have gone into this "richer" idle mode just after you shifted into drive and lifted your foot from the brake?
Secondary question: why *does* it idle that high inconsistently? I'm thinking the "decision" is based on temp, humidity, pressure, etc. etc.
03-23-10, 12:39 PM
#71
Glad I followed this. This must be what happen to me! I was trying to put all of the pieces together, but the way the episode made my heart jump out of my chest, I was just reeling. I do remember that I pushed the ignition and immediately put it in gear. I was trying to minimize the amount of exhaust in the garage and the next thing I knew, the back wheels were spinning while I had the brakes jammed with both feet.
03-23-10, 01:50 PM
#72
Lexus Fanatic
Glad I followed this. This must be what happen to me! I was trying to put all of the pieces together, but the way the episode made my heart jump out of my chest, I was just reeling. I do remember that I pushed the ignition and immediately put it in gear. I was trying to minimize the amount of exhaust in the garage and the next thing I knew, the back wheels were spinning while I had the brakes jammed with both feet.
03-23-10, 02:36 PM
#73
Your brakes were engaged when you shifted into park (obviously). Did the car
1) "lurch" just as you lifted your foot off the brake, or
2) was there a lag from when you lifted your foot off the brake to when it accelerated rapidly?
In case 1), it would just seem like a high idle issue. I've had this happen every once in a while in cold weather: it will be idling "rich" (north of 2K RPM's) after a minute or so of warm up.... if I shift into drive while it idles "rich" like that, yeah, it lurches alright (compared to "normal"). I've learned to just rev the engine slightly and it goes back down to just over 1K
In case 2), could the car have gone into this "richer" idle mode just after you shifted into drive and lifted your foot from the brake?
Secondary question: why *does* it idle that high inconsistently? I'm thinking the "decision" is based on temp, humidity, pressure, etc. etc.
1) "lurch" just as you lifted your foot off the brake, or
2) was there a lag from when you lifted your foot off the brake to when it accelerated rapidly?
In case 1), it would just seem like a high idle issue. I've had this happen every once in a while in cold weather: it will be idling "rich" (north of 2K RPM's) after a minute or so of warm up.... if I shift into drive while it idles "rich" like that, yeah, it lurches alright (compared to "normal"). I've learned to just rev the engine slightly and it goes back down to just over 1K
In case 2), could the car have gone into this "richer" idle mode just after you shifted into drive and lifted your foot from the brake?
Secondary question: why *does* it idle that high inconsistently? I'm thinking the "decision" is based on temp, humidity, pressure, etc. etc.
03-23-10, 04:30 PM
#74
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odd i have a 06 gs300 and i had a fuel system recall a few years back but now i am having the same problems again.. as in hesitation while stepping on it. i took it in and the problem didnt happen for them. when i did floor it i would get smoke coming out the exhaust also.. anyone have or had this problem also a rough idle.. here and there?
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