Acceleration Problems after Dealer Oil Change
#166
Advanced
Now I know why the Lexus techs always change their OWN synthetic oil at 5000 miles....... Most likely they are aware of this "unspeakable problem" and want to avoid it so they are proactive on their own cars.
#167
Well, having the ECU's reflashed can't hurt, but going back and forth with your oils (synthetic to dino etc), would be the other thing I'd avoid. You could try a bottle of Rislone Engine Treatment with your next oil change like I did, before I used the Toyota product. Synthetic oils already have great cleaning qualities, but if you go back and forth to the dino oils, who knows. When I beat this problem 3 years ago, I followed a regimen that I could trace and assess. All I know is that after using the Toyota Engine Oil System Cleaner and TGMO 0W20 oil, my issue has never returned and I never had the re-flashes done.
#168
2008 model:
Well, ******! After 83,000 trouble-free miles, don't you know it... Hesitation after an oil change! This is ridiculous...
This car has had approximately 16 oil changes in its life, from various vendors including the dealer, independents, and (shudder) "quick-change" outlets. Always Dino oil, 5w30 or 0w30 (depending on the season). Has had all recall work (including valve springs).
This last change marks the 4th time the same mechanic has changed the oil, same oil brand (Castrol Dino) and I have stuck with 5w30 since the climate here never gets that cold. Hesitation is not as drastic as some claim here, and a battery terminal pull seems to have cleared it, but who knows. I can't tell you how disappointing this is, given my last lexus (LS 430) served me without problem for 160,000, and is still serving a family member very well. Wish I had it back!
I'll be damned if I'm gonna spend 10K$ to change heads or other drastic measures... Somebody's gotta be able to figure this out.
Thanks for the rant-space...
Well, ******! After 83,000 trouble-free miles, don't you know it... Hesitation after an oil change! This is ridiculous...
This car has had approximately 16 oil changes in its life, from various vendors including the dealer, independents, and (shudder) "quick-change" outlets. Always Dino oil, 5w30 or 0w30 (depending on the season). Has had all recall work (including valve springs).
This last change marks the 4th time the same mechanic has changed the oil, same oil brand (Castrol Dino) and I have stuck with 5w30 since the climate here never gets that cold. Hesitation is not as drastic as some claim here, and a battery terminal pull seems to have cleared it, but who knows. I can't tell you how disappointing this is, given my last lexus (LS 430) served me without problem for 160,000, and is still serving a family member very well. Wish I had it back!
I'll be damned if I'm gonna spend 10K$ to change heads or other drastic measures... Somebody's gotta be able to figure this out.
Thanks for the rant-space...
Last edited by Ears; 07-04-17 at 08:14 PM.
#169
When i got my 07 after the first oil change it did that for about a week.
After that i tried this http://www.amsoil.com/shop/by-produc...mission-flush/
And use this at every oil change. http://www.hotshotsecret.com/shop/stiction-eliminator/
I did have the ECU firmware updated 2 months i got it too. All and all i have not had any issues since my second oil change.
Think you may have a good build up in her.
After that i tried this http://www.amsoil.com/shop/by-produc...mission-flush/
And use this at every oil change. http://www.hotshotsecret.com/shop/stiction-eliminator/
I did have the ECU firmware updated 2 months i got it too. All and all i have not had any issues since my second oil change.
Think you may have a good build up in her.
#170
https://www.clublexus.com/forums/7783850-post6.html This is the latest version of the hesitation TSIB.
has been OBSOLETED & SUPERSEDED by
L-SB-0122-17 "Hesitation on Acceleration and-or P2119" [2017-05-03].
I did not discover this fact either in this forum or at the NHTSA website. Rather, when I presented L-SB-0033-08 to my dealership, they eventually provided in return a copy of the superseding L-SB-0122-17.
The major differences between the two SBs, as I read them, are:
* In the 2008 SB, the repair procedure calls for first performing the ECM flash … then conditionally (ie, if the hesitation is not resolved) performing the cylinder head replacements. The SB does not specify a cause.
* In the 2017 SB, the repair procedure calls for first performing the ECM flash (at steps 2 & 3) … and then, unconditionally, performing the cylinder head replacements (at step 4). The SB specifies the cause as "inappropriate spark knock or detonation detection."
This 'inappropriate detection' phenomenon is described with further clarity & detail at https://bit.ly/3ClAjBf .
Last edited by DrQuality; 08-06-21 at 01:13 AM.
#171
When I took my recently-acquired 2007 Lexus LS460 to the dealership in March, 2021 to be evaluated for ZLZ, the vehicle was returned with a lengthy boilerplate note advising me that I shouldn't have a mat-on-top-of-a-mat (which I did on that visit) ... and that they had placed the upper mat in my trunk for my safety and the safety of its own team members.
My prior vehicle, a Toyota Avalon, I recall a number of different types of back-and-forth about my floor mats (such as written advisement on my repair orders that my mats had been resecured-to-the-floor, to not keep mat-on-top-of-mat, etc.) when I took the Avalon to dealerships.
My guess is that your service advisor had to backtrack & double-check about your mats so he/she could CYA-document something he was supposed to have punched-off about the mats in the paperwork.
UPDATE: My visit to the Lexus dealership last week resulted in paperwork that included, again, a boilerplate "Floor Mat Warning." Because I have 'installed floor mats not designed specifically for my vehicle.' When in fact they are high-end Lloyd-brand floor mats that were custom-cut to the vehicle. And a reminder not to install floor mats on top of one another. Even though I did not and have stopped doing so. Sheesh.
Last edited by DrQuality; 08-10-21 at 05:16 PM.
#172
Here is a video from a well-known YouTube mechanic, explaining why he cannot repair LS460 brake actuator problems: https://bit.ly/3jHieW7 , starting at about the 2:40 mark.
After (recently) acquiring my 2007 LS460, at one point, I took it to one of Vegas' most highly-rated "we only do brakes and we do them well" shops ... and the owner refused to do a front brake job on it. He told me he doesn't do early-years LS460 brake jobs at all ... because he can't resolve any issues that end up being root-caused back to the actuator.
Last edited by DrQuality; 08-05-21 at 09:06 AM.
#173
Pole Position
However, a DIYer can program the actuator for $200 with parts (laptop, cable, and software) off Ebay.
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DrQuality (08-06-21)
#174
Lexus Champion
Installation of the brake actuator has to be "programmed" to the vehicle at the dealership. Access to the programming software is cost-prohibitive for most independent shops (they have the 'right-to-repair' ... if they are willing to pay the price for it). And, not surprisingly, dealerships refuse to install owner-provided brake actuators of any kind. It's about a $3700 job at the dealership, about 50-50 parts & labor.
Here is a video from a well-known YouTube mechanic, explaining why he cannot repair LS460 brake actuator problems: https://bit.ly/3jHieW7 , starting at about the 2:40 mark.
After (recently) acquiring my 2007 LS460, at one point, I took it to one of Vegas' most highly-rated "we only do brakes and we do them well" shops ... and the owner refused to do a front brake job on it. He told me he doesn't do early-years LS460 brake jobs at all ... because he can't resolve any issues that end up being root-caused back to the actuator.
Here is a video from a well-known YouTube mechanic, explaining why he cannot repair LS460 brake actuator problems: https://bit.ly/3jHieW7 , starting at about the 2:40 mark.
After (recently) acquiring my 2007 LS460, at one point, I took it to one of Vegas' most highly-rated "we only do brakes and we do them well" shops ... and the owner refused to do a front brake job on it. He told me he doesn't do early-years LS460 brake jobs at all ... because he can't resolve any issues that end up being root-caused back to the actuator.
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460, acceleration, accelleration, car, change, engine, gs300, hesitation, lexus, ls, ls460, oil, power, problems, trouble