Lexus LS 2007+ :: LS460L - Lag Or Stutter During Medium To Hard Acceleration
Aug 5, 2012
I have a 2007 LS460L. Bought it new and have loved it dearly for 6 years now. It now has 70k miles and is under an extended warranty purchased at 50k miles. As a first year model it has had a ton of TSBs done on it.
The problem i have had as long as i can remember is a lag or stutter during medium to hard acceleration. It feels a little like the old turbo lag or like a very mild stutter. It has had the transmission adjusted, had the service manager driver it for a week to try and capture on computer etc. But nothing has fixed it. At times it feels like if you watch the tachometer during these moments you can actually see a bounce (I may be imagining).
I have almost given up and just lived with it. We have tried tranny, type of oil, software tweaks etc.
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About two months ago, my EPC light came on and my check engine light started flashing while I was driving home from work. Never heard of/saw that EPC light before. The car started to stutter and buck really bad when trying to accelerate (on light and hard acceleration). Also, when sitting idle (like at a red light or stop sign) the car would still buck but not as bad as when driving. The only time the car doesn't buck is when I am cruising, like after I just get done pressing on the gas and the car is coasting basically. I call the mechanic the next day and he tells me right off the bat, it sounds like a Crankshaft Position Sensor and to drop it off so he can look at it. So I drop it off, he tells me he believes it is just a bad coil on cylinder 1, so he swapped it out and gave me an oil change (it was due for one). Picked my car up on a Wednesday, it seemed fine. Then on a Saturday same issues and same warning lights came back on. So I had it scanned at Autozone, misfire on cylinder 1 and 3, random cylinder misfire and multiple cylinder misfire, so I call him and tell him, he said just bring it back he'll swap it out. I changed the coils myself since it only takes 10 mins. The car seemed fine for about a month. Then two weeks ago, all of the same issues are back and same warning lights.
Had issues with the EPC light? Also, is any truth that the Crankshaft Position Sensor can be related to this or was the mechanic completely wrong? Read another post by someone else and there was talk of carbon buildup. My friend is mechanic and said that he thinks it might be a fuel related issue or electrical, since the issues keep coming back. Also, it misfires more when the heat is on and seems like the interior lights flicker a little when it's misfiring at idle, it's very subtle, definitely notice it so I don't know if it's electrical, fuel related, carbon build up or what.
-February of 2014, I had a fuel pump replaced by the dealer (it was for a recall)
-Back in January 2015, I had the ignition coils and spark plugs replaced by a friend (who is a mechanic).
-In July I had the lifters replaced (by the same mechanic I called)
-Been up to date with oil changes
-Use plus gas from Citgo
Going to drop it off at the dealership tomorrow.
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Starts good cold and hot. Taking off like a grandpa on an evening drive don't notice a thing. Only codes that keep coming up are 2614 and 2617 which are cmp and ckp open curcuit codes and a software incompatibility code for FICM which is due to the updated software in the fresh FICM I installed. HPO pressures are good, has boost, idles smooth, revs nice when in park. New injectors (cause it was running rough especially cold before) and CMP and CKP (because of the above codes and didn't change)and ICP and IPR (last 2 installed because of HPO codes that are gone now with the IPR and ICP). Fuel pressure is 65psi (updated spring). When you step on it while driving it sputters and bucks like it's out of fuel, let off the throttle a bit and it purrs like a kitten. I'm a little stumped. I think it puffs a little white/blue smoke while it bucks.. not much tho. and it comes in little puffs. Took off filler cap and there is almost no blow by.
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When I got off work today I noticed my car leaning to the right. I never noticed this before, but a fellow coworker observed it as well when we was in the parking lot. Yes I have the air suspension and was thinking if the air suspension has something to do with it. I have about 92000 miles on it right now and no warranty. How much this would cost and is it safe to drive.
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06 250 5.4 40k on it, usually when cold and accelerating engine will misfire and stutter and then continue accelerating. The wrench light will flash sometimes but it wont store a code. This used to be vague in occurrence but has now started to be more a common occurrence even when up to normal operating temps.It seems only to misfire /stutter on hard acceleration or towing/hauling heavy loads. The only answer I got from a mech would be to do a computer reflash, not sure why /how this would fix whats going on.
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Ok, my father has an LS460L with the Mark Levinson system.
When you press the load button, nothing happens. When you press and hold the button for a couple seconds, there is a beep, but the gate in the CD slot never drops down and the CD changer will not accept a CD.
Is there some other trick to this, or is his CD player broken?
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I'm looking at an 2009 LS460L with the touring package. I have read that the air suspension has reliability issues. Is this a common problem or just a few isolated cases?
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OK, Two days ago, at random, my lock stuck and would not open. I looked on this site and the best solution was to try to reset by disconnecting the battery. However, yesterday before I could get home and try it, the trunk starting opening and would not shut.
This morning I did the battery d/c. I notice the latch would pull the trunk down and then release several times. It appears about 5 times and then stopped in the open position. I put a screwdriver in the latch hook to see if that would stop the latch. It would not. I did the battery d/c about 5 times and no avail. I also checked the emergency pull inside the trunk and it is fine. I checked the latch release inside the car as well as in the glove box and they both appear to be in good working order.
So, I am led to believe I have either a wiring harness or a motor problem. I am leaning to the wiring harness because the pull down motor for the soft close is also not working.
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Installing one on a LS460L? Can you buy just the bulb and pop it in or is it a big wiring job? I think they are a pretty good safety feature (the way the crazies drive in this City anyway) and I assume it would be an easy DIY install?
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I just purchased a 2009 LS460l and noticed a really deep vibration coming from the rear of the vehicle. The vibrations occur when I am at a complete stop and attempt to accelerate the vehicle turning to the left or right. Initially, I thought the tires were rubbing (18inch wheels), but after taking it to my local Lexus dealership they seemed confident the vibrations were occurring because my center differential needed to be flushed a refilled with 3 quarts of new fluid (they claimed the fluid was filthy) which is ~$150/quart. The car has brand new tires and all of which were just balanced/aligned.
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So I have a PCS fault on my 2008 LS460L and brought it to my local Lexus Dealership....They basically insist that the data controller is/may be causing the PCS fault.
In the meantime, I guess the most probable action is to disconnect the data controller and see if the problem goes away.....
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I am having problems starting my car. It takes 5 or 6 tries . It will not turn over it will just click under the hood. I scanned the code and it showed the crankshaft sensor code. Would this be correct or could it be the starter or starter components. It is a 2008 LS 460
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Sometimes after opening fully, my trunk drops down again about halfway. I cannot think of any logical explanation for this. Moreover, it doesn't happen all the time. But the occurrences are pretty unpredictable. I took the car in to my service dept. and the trunk worked flawlessly. But later that same day, it malfunctioned. It makes a noise as it drops and comes down at a rather fast speed. In fact it's rather scary because if it didn't stop about half-way, it could be potentially harmful.
This happens even when there is no-one near the trunk.
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I just recently traded in my '07 SWB for an '11 LWB (75k miles) and am loving the engine (sans hesitation) and ride etc. etc.
The only thing that's been really bugging me is that during cornering, the body seems to twist and "wind up", and as it does this, something(s) under the body moves and creaks/pops noisily. Then as I straighten the car out or turn the opposite direction, whatever had moved settles back out and I get more creaking/popping.
I thought it might be back door seals or door latch (based on that being a typical german car issue/solution) so I treated the seals and lubricated the latches, but the sounds didn't change at all. I would say, as a guess (tracking down noises can be super deceiving), the sounds seem to be coming from below the floor pan. I also wouldn't say the issue changes with outdoor temperature.
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I just purchased a 2007 Ls460L. I am happy to be back in a Lexus Ls. I had a ls430 when I joined this forum many years ago. The rear window sunshade keep coming up on it own when I start the car.. It will always goes down when I push the button, but It wont go up after I put it down the first time though.
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I have a 2008 LS460L and the front driver's and passenger's windows have wind noise, sometimes worse than others. I also drove a 2007 which experienced the same problem. It is still under warranty, but not sure if there is anything which can be done. Not sure how a car with doubled panned windows can have so much wind noise.
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My 2008 LS460L blows cold air on cold days/nights when the engine is idling. Raising the RPM to about 1500 causes heat to start to flow out of the air ducts. I also hear a gurgling sound behind the dash when accelerating normally from idle. The water pump was replaced by Lexus in late April 2014.
I have checked the coolant reservoir (engine cold) and found it to be slightly below the "LOW" coolant level mark (not empty). It would seem that since the feed from the coolant reservoir is on the bottom of the reservoir, as long as there is some coolant in the reservoir, the rest of the system should be full.
All things considered, are the two issues (no heat & gurgling sound) more likely to be caused by low coolant in the system, the relatively new water pump, or something else? BTW, what is the proper method to top off the coolant in a 2008 LS460L? Are there any special bleed ports for eliminating air pockets?
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I have an ongoing issue with my 2007 LS460L. Sometimes when I start the car I get multiple warnings on the display and the car will not shift out of Park unless the override button is used. The window switches are disabled and the turn signals won't operate.
The car has had the issue since I purchased it used with 12,000 miles on it. But it has become a lot more frequent in the last couple of months. It seems to happen more often after being parked in the hot sun.
The dealer has been useless as far as finding the problem. It does not throw or store any codes. It only happens occasionally and never at the dealership. Usually I can restart the car after about 20 minutes or so and the problem has disappeared.
Check out my short video here: IMG 0499 - YouTube
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2007 LS460L; nagging subtle muffled rattle in the rear cabin deck. It turns out that if you remove the passenger side panel in the trunk, whereas you are capable to reach behind the frame and the rear fender panel. There I found a drain hose, neatly wrapped in sound deadening material, but loose enough to rattle around against the outer rear fender panel enough to create that elusive subtle rattling sound.
I simply did a quick fastening job with gorilla "duct" tape, in order to secure the hose to the inner frame of the trunk. This prevents the hose from moving around with "ANY" movement produced by the vehicle over the smallest of bumps to the largest of bumps.
I checked everything from the sunshade, to the speakers, to the subwoofer, to the air ride suspension caps (accessed by removing my electronic reclining rear seats), to securing all hardware in the spare tire compartment, to the middle row seat belt "housing", to the middle row headrest "relaxed position", to the rear center console.
All of this effort only to read another members experience on their 2009 lexus is250 with the "brown/blue box electronic housing" in the trunk behind the panel on the passenger side, where he found his solution by tightening the retaining nuts on the housings bolts that secured it to the inner frame structure.
blue/brown plastic box that connects the wires inside the trunk.
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My 07 LS460L has a pulsating idle. Approximately 2-300 rpm from 1200 rpm. It has, while in Drive dropped to 4-500 rpm then will recover. Also it has dropped so low that I thought it was going to stall but then it jumped to 1500 rpm fluctuated then recovered. I had it in at Sewell 2 weeks ago and they couldn't find the reason until a week later they said the throttle body was dirty. The tech cleaned it and I still have the same issue. No performance issues just idle? I have two LS430' 01&06 and neither one of them have this issue. The fuel rails were replaced under recall.
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I got a 2008 LS460L. I replaced the daytime running lights but they flicker and don't stay on.. I'm looking to change them again any brand which works best. I want 6000k in headlights and fog lights.
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