freakish random acceleration??
freakish random acceleration??
Today was the second time this has happened in my 430.
The first time I was parking and inching up to the wall in the parking garage and the car launched forward. It barely tapped the wall...of my newly painted car. I figured I just spaced out for a sec
no damage / no big deal...just thought it was strange. that was a few weeks ago
Today, I was moving cars around in my driveway. My S13 and GS300 were side by side. I was just going to park directly behind them...accelerator sped up (REALLY fast) as I was moving about 5ft from the rears of the cars. I slammed on the brakes with BOTH feet until I could feel the Antilock brakes vibrate like crazy....the car was still acting like I was giving it gas.
I turned the wheel sharply to avoid (hitting) my other cars and almost ran into the side of my house. it stopped less than a foot from the house and my GS.
The first time I thought it was me..now im thinking this could be an issue with the car
Any else ever have that happen???
The first time I was parking and inching up to the wall in the parking garage and the car launched forward. It barely tapped the wall...of my newly painted car. I figured I just spaced out for a sec
no damage / no big deal...just thought it was strange. that was a few weeks agoToday, I was moving cars around in my driveway. My S13 and GS300 were side by side. I was just going to park directly behind them...accelerator sped up (REALLY fast) as I was moving about 5ft from the rears of the cars. I slammed on the brakes with BOTH feet until I could feel the Antilock brakes vibrate like crazy....the car was still acting like I was giving it gas.
I turned the wheel sharply to avoid (hitting) my other cars and almost ran into the side of my house. it stopped less than a foot from the house and my GS.
The first time I thought it was me..now im thinking this could be an issue with the car
Any else ever have that happen???
Good to know you and everybody were safe. This is really weird, never heard of that.
I know some cars may jolt like that due to a problematic transmission. It could attempt that kind of problem. But I really wonder if the LS has a problem with that? Just a lot of factors that can go in on this one.
I know some cars may jolt like that due to a problematic transmission. It could attempt that kind of problem. But I really wonder if the LS has a problem with that? Just a lot of factors that can go in on this one.
Lead Lap
Joined: Mar 2006
Posts: 4,189
Likes: 16
From: NY/NJ
I'd have it check. I believe the accelerator is fly by wire, so no physical connection to the throttle, so if you have a faulty pedal that thinks you are gassing it when you're not, that could be trouble.
Instructor
Joined: Feb 2008
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From: CA
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Pole Position
Joined: Mar 2011
Posts: 2,188
Likes: 730
From: Texas
Next time you experience this "creeping behavior", shift the transmission to "N" and see at what RPM the engine runs. If it is significantly higher than what you see normally, then your throttle body may be sticking. In this situation, leave the car in "N" and gun the engine once to see if the RPM drops back to normal (you may have to repeat more than once). If the RPM does return to normal, then you know you have a sticky throttle body. Otherwise if the RPM remains high all the time, you're dealing with an adjustment problem.
Last edited by rkw77080; Nov 9, 2015 at 01:07 PM.
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Instructor
Joined: Sep 2014
Posts: 857
Likes: 71
From: State
the government safety website has examples of 2005 LS430's having this problem. until now I disregarded them but ....I have never cleaned my throttle body, but the dealership does all my maintenance and they might have. the example where the LS430 killed somebody in a corvette was scary
Driver School Candidate
Joined: Nov 2015
Posts: 1
Likes: 0
From: fl
A customer at a dealership in Florida just reported the below recurring problem with their '05 LS 430 with 92K miles. Customer sold car to dealership the following week. Dealership put up the car for sale.
Here is the service note, from Oct 28:
TRANSMISSION/AXLE CUSTOMER STATES THAT SOMETIMES WHEN IN REVERSE THE VEHICLE WILL WANT TO SURGE BACKWARDS, AND SOMETIMES WHEN IN DRIVE THE VEHICLE WILL WANT TO SURGE FORWRDS. THIS HAPPENS SHORTLY AFTER START UP ON THE FIRST MOVE OF THE VEHICLE. SO IN PARKING SPOT BACKING O - 91870 100 TEST DROVE VEHICLE. WAS UNABLE TO DUPLICATE CUSTOMERS CONCERN. CHECKED TRANSMISSION FLUID LEVEL AND CONDITION. FOUND NOTHING OBVIOUS AT THIS TIME. TEST DROVE WITH DIAGNOSTIC SPECIALIST AND STILL WAS UNABLE TO DUPLICATE. TEST DROVE WITH WITH CUST
Here is the service note, from Oct 28:
TRANSMISSION/AXLE CUSTOMER STATES THAT SOMETIMES WHEN IN REVERSE THE VEHICLE WILL WANT TO SURGE BACKWARDS, AND SOMETIMES WHEN IN DRIVE THE VEHICLE WILL WANT TO SURGE FORWRDS. THIS HAPPENS SHORTLY AFTER START UP ON THE FIRST MOVE OF THE VEHICLE. SO IN PARKING SPOT BACKING O - 91870 100 TEST DROVE VEHICLE. WAS UNABLE TO DUPLICATE CUSTOMERS CONCERN. CHECKED TRANSMISSION FLUID LEVEL AND CONDITION. FOUND NOTHING OBVIOUS AT THIS TIME. TEST DROVE WITH DIAGNOSTIC SPECIALIST AND STILL WAS UNABLE TO DUPLICATE. TEST DROVE WITH WITH CUST
Last edited by lionary; Nov 10, 2015 at 07:40 AM.
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