Lexus LS 2007+ :: Loss Of Power On Acceleration - 2009 LS460
Jul 26, 2014
2009 LS460 I have had my car at the dealer a few times for loss of power on acceleration. The last visit which lasted three weeks finally gave a diagnoses. The problem was confirmed by the dealer and the factory reps, a knock sensor picks up a signal that retards the timing resulting in no power, I was nearly run over by a semi the last time it happened. They tried to give me my car back on 7/24/14 with the knowledge that the problem is not fixable at this time but I should drive the car and they will tell me when there is a fix. I left the car at the dealer. I was also told that they had a few others with the same problem that could not be fixed.
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My new LS460 AWD 2008 is jerking on 60-80KPH(37-50)MPH, when you driving without any acceleration.
I have only 900km on odometer. And it's started jerking from 0. I gave my to Lexus for a test. They tested it over 7 days, and now they are saying nothing is wrong with it. And it's normal for AWD version.( WHAT???? )
They have one more new AWD 2008 and it has the same jerking issue.
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I purchased a brand new 09 LS 460 a few weeks ago - it is an amazingly beautiful car and a joy to look at.
Unfortunately, I think I have the dreaded wind noise problem, as there is very noticeable wind noise above about 65 mph - it gets pretty bad when it is really windy outside.
I love driving the car and have a long daily commute - however, this issue it starting to bother/annoy me and I find it takes away from my enjoyment.
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I just picked up a used 2009 LS 460 AWD last week with 45K miles. I have put about 1000 miles on it so far myself.
When I hit any small depression in the road at 10-45 mph I hear a thump in the rear. The bigger the depression and the more weight in the backseat, the louder the thump noise and even an occasional bottoming out feeling occurs. It hasn't happened at highway speeds so far.
The bottoming out feel occurs only with a medium to large depression. I am not talking about a pot hole, just pavement depressions where two sections are not of equal height or you are transitioning from a primary road to a side street and the is a depression to allow for water run off, etc.
If I have someone sitting in the passenger seat and the backseat and accelerate quickly from a dead stop, I get a similar rear thump and even a bottoming out feel. This occasionally occurs even without a without a depression in the road. With no one in the back seat it does not do it unless there is a big depression in the road.
Finally, when cornering on a 270 degree off ramp at 40 to 50 MPH the rear end will start to hop and bounce. If I slow down to 15-20 mph it goes away. Still, it is irritating and embarrassing. I have tried all comfort settings and get the same results.
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I recently purchased a 2009 CPO LS460 from my Lexus dealer and cannot get the Aux input in the center console to come up. When I plug my Ipod in, and I push the Disc/Aux button on the ML stereo, all I get is either the CD player or the HDD drive but the Ipod will not show up. Could the Aux jack be bad? I have tried several different cords and inputs (ipod, phone music, etc).
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My 2009 LS460 AWD with air suspension now, at 56,000 miles, has this noise frequently during driving and sometimes at idle.
Like an air compressor for a few seconds. It's not loud, but you definitely hear the whine/air type noise. It's almost not even bothersome for me as I've gotten used to it. But when my wife or others are in the car they always ask "what is that"
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I have a broken rear strut on my 2009 LS 460 with 27000 miles. First noticed it about 25000 but dealer said it was only the cold weather and all was fine. I had a mechanic friend ride with me and he said I had a broken part in the rear suspension. Back to the dealer and this time they test drove it and diagnosed the broken rear strut. The tech told me that they had recently seen several LS 460's with the same problem. The broken strut causes handling problems and I am reluctant to drive at highway speeds.
The dealer (and all the other dealers I called) said that there are no parts available for the repair and one told me that the last strut had to be brought from Japan.
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I've just won a 2009 LS460L with 60k, at an auction, with very minimal damage to the front. Ill need to replace bumper cover, grill, hood and lights. I am pretty stoked about it.
The LS460 looks sort of unbalanced with the sides and the rear, and a higher front end. I've searched and search but I am looking for a picture, only added a front lip to sort of balance it out. I dont want a full kit, just not my thing. Just the front.
As for grill. While getting front end painted, I plan on doing similar style, a user here did. This is plastidip but of course ill be painting it. I also noticed on here, someone else had their bumper painted but had them paint his grill as well, but he painted the chrome grill housing. I like that chrome accent and plan on keeping it.
[URL] ....
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When we get into our car, the Bluetooth pops up like it's dialing a call, but the phone isn't dialing. I have to hit the call disconnect button on the steering wheel to stop it,.
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Yesterday afternoon, after a 90 minutes stop and go commute, a strong gas smell developed in the cabin of my 2009 LS460. The factory call-back service was performed on the car few months ago.
During yesterday's long commute, the LS460 passenger side wheels run over some garbage on the high way at high speed, and after that I can hear some noise from passenger side, sounds like a flag's flopping sound.
Other than that, recent incidents that I can think of that might be related are:
1. All 8 control arms of front wheels replaced about 3 weeks ago
2. Have been using Sam's Club premium 93 gas for the past 4 weeks
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I have a 2009 460 awd with adjustable suspension and when making a right turn the front left side makes a noise. I have had the dealer look at it 5 times or more but each time I am told that there are no problems. Now that the weather is getting colder it is becoming more pronounced.
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Got in my 2007 LS460 and it wouldn't start. No power, no clicking, nothing. I checked the battery terminals and noticed they has some corrosion so I cleaned them and reattached. Nothing. I found that if I jiggled the positive cable the power would light up my dashboard with every light / radio, but it still wouldn't start....and I had to disconnect the cable in order to turn the power off. I had the car towed to a trusted Toyota/Lexus repair shop I've used for 15 years. They connected the cables to the battery and it started right up....but the power steering is out. They tried multiple things to get it working with no success. The only option now is to replace the electronic power steering unit.
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I own a 2000 7.3 6 speed with 175,000 miles. I just bought it less than a month ago and it is my first diesel.
About a week ago I stepped on the gas and it just had nothing. I have a TS 6 position chip that I unplugged as soon as I noticed the loss in power. When I first bought the truck it was incredibly fast and now it has nothing to it at all. I have to have it higher in the RPM's to go up hills (especially when its not warmed up). If I push the pedal down it will sound the same, boost will get to about 14 (without chip) and the truck doesn't let out any smoke but it just doesnt have any power at all. I recently towed another vehicle on a trailer and it really struggled with it, more than I thought a diesel should.
When the chip was in, the truck would let out black smoke even after I noticed the loss in power. That made me think that the engine was getting enough fuel. I thought there could be a boost leak somewhere but it still builds 14 psi. However, I do not feel boost kick in at all! When I first got the truck it would only build around 14-15 stock but it felt a hell of a lot faster and I could feel when boost would really kick in. I took off my intake and looked at the turbo and the fins are in great shape and there is little to no play.
What the problem could be? I don't have very much money to start dumping parts into the truck and Im not sure what to do. I guess my questions would be:
1) Is it a boost leak, fuel problem, or something else?
2) Could a gelled filter give me these problems?
3) What should I do and where should I start?
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I have purchased LS 460, 2010 with 21000 miles on it. Dealer said he put new Kumho tires on it. But the power steering feels hard, and is not even as soft as my Honda Pilot 2009. I have made an appointment with Lexus dealership for this concern ( I had the vehicle checked by Lexus store before purchasing.) I have read good reviews about Michelin tires, am wondering perhaps I need better quality tires. Do not know what the dealer is going to recommend.
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I have a 2007 LS 460 with about 50,000 miles. Some 18 months ago, at about 35,000 miles,right after a service, I began to experience hesitation/lack of power when accelerating from a stop. Lexus fixed this by doing a software update to the transmission.
All was well till last month, when again right after a service, the car hesitated and totally lacked power , most noticeable from a rolling stop. Revs would very gradually climb to 5,000, with foot flat on accelerator, yet car barely moving. Once speed built up to highway speeds, car reacted normally. Took it back to Park Place Lexus who held the car for 10 days and did a major job changing the cylinder head, I think per L-SB-0033-08.
A month later, the hesitation/lack of power is even worse then before! I suspect the issue is the transmission, and the big surgery on the engine done last month was not required. After nearly being hit trying to merge with traffic today, the vehicle is back at the dealership, and I took their head tech for a drive. He experienced the problem, but did not venture a solution. He told me they take instructions on what to do directly from Lexus.
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Car battery was dead, got a new battery from Walmart and replaced.
After that, from time to time, the engine would not start when pushing the start button, sometimes it takes 2 or 3 tries to get the engine to start. This has never happened before.
What is the reason for it, could it be that the walmart battery is not as powerful as the previous LEXUS battery? or something else?
By the way the car is due for an engine oil change with the warning light on. I use Mobile 1 fully synthetic 0w20 and the light went on every 5000 miles.
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2008 GS460. 100K miles
I have noticed when I accelerate on a entrance ramp to the highway I notice the RPM meter jerks a little like it's trying to suck for gas or something else. I can feel it in the car too. This is the only time I have noticed this. I have replaced the spark plugs about 5K miles ago.
I did bring it into the dealership a few months ago to get the fuel pump replaced as I noticed a hissing noise under the drivers side read door. They said fuel pumps rarely go bad on the Lexus. The mechanic did some fuel pressure tests and said everything looks good. He also said noise is the return line back to the pump.
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The car started rough idling and a few weeks ago while driving "lost power" momentarily. I went to take a look at it and even just idling it will randomly drop 1000 rpm, or when the gas is one in P it does the same thing. also the dash lights dim at the same time.
I pulled these codes (below). I cleared the codes and tried to replicate with no luck. The car had been sitting in a parking lot outside for a few days and it has been -15C. I asked if it seemed to only happen when it was warm (the week before it was +10C) and they said yes. It has been another week (still cold) and the codes have not returned.
Quick google of these codes suggests maybe a throttle position sensor and/or loose battery connection.
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We have had had our Santa Fe for a year, done 38000 km and love it. The car will start up and drive around town fine but as soon as the engine is under load at highway speeds or driving up a hill it loses all power.
In Automatic when this happens the gear will drop back to third. You can switch it over to manual mode and slowly accelerate back up to around 80-90km/hour with your foot flat to the floor but the rpm don't get above around 2000 to 3000.
If you stop and turn the engine off for a minute or so, when you start again everything will appear to back to normal but after another minute or two the problem will be back. The engine malfunction light comes on and sometime it's flashing but at other times it's constant.
The car's been in at our local Hyundai dealer for a week but at this stage they still can't quite figure out the exact cause of the problem. The code they pulled out suggested it was the exhaust particulate filter (apparently quite an expensive part) so they replaced that but it didn't fix it. They've also replaced the fuel filter and some temperature sensors that are part of the particulate filter apparently but still no joy.
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Over the past few days driving my ls460 I've had a niggling feeling that something isn't quite right. The power delivery seems a bit inconsistent and although the engine sounds fine, I can feel something a bit 'rough' through the pedal.
At first I put it down to my imagination, but a few minutes ago I was driving along at a steady 40 and for a brief second the engine power cut right down and something flashed up on the screen along with a beep.
It happened so quick I couldn't have read it even if I were staring at the screen.
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I have owned this car for six months. The car now has 39K. The problem is getting worse.
Re: Lexus 2011 LS460 AWD
Subject: Hesitation / momentary loss of power when accelerating after turn.
When accelerating after a sharp turn with light to moderate acceleration, the car will have a momentary loss of power for about 1, 2, or even 3 seconds. This does not happen often, but perhaps once every two weeks and I cannot replicate the problem despite attempting to do so.
In all cases, I am talking about DRY pavement. It always happens after a sharp turn usually to the right. (Probably because most sharp turns are to the right actually it only happened once on a left turn that I will describe below.) Acceleration is light to moderate NOT hard acceleration.
In one case it caused a serious situation. I had just purchased gas and was entering a busy freeway. When accelerating, the engine had a total loss of power for a couple seconds as a large semi truck bore down on me with its air horns blaring.
I have a strong clue that may debug this problem. Once, when turning left, the car suffered a total loss of power. There was no traffic and I kept my foot lightly on the throttle. The car remained unresponsive. The engine did not stop, but it did not respond and remained this way for at least 5 seconds until I took my foot off the accelerator and then back on to the accelerator. During this period of suspended throttle, I noticed that on the right side of the dash an orange alert symbol was flashing I think it was a swerving car? I assume this indicated that the car was losing traction and the computer decided to cut power until traction was regained. But the pavement was dry, and the acceleration was normal. In no case did I ever sense that one of the wheels was slipping.
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