Folks, knock off the personal commentary, or you will be asked to exit the thread. Please stay on topic. Thank you!

 

I think so - I am wondering if they would consider a "goodwill" repair if it happened shortly after warranty, sometime, they will do things like that

 

TSB's are always active until it's fixed...whomever is paying.

 

I thought I read on the TSB that it stated 4 years or under the allowed mileage by the warranty?

 

I think the TSB does sometimes state a time frame for repair. I haven't read this exact one, but I have seen others that do offer repairs for a set time period even beyond warranty coverage. We have a 6 year 70k mile powertrain warranty this would likely be covered under beyond the standard 4 year bumper to bumper.

 

^^ Yeah sadly the TSB does state 4 year or 50 000 miles although it appears you would be better as there is a California emission clause in there that brings it to 7 years (if I read that clause correctly). Sadly, I am not even sure that TSB applies to Canada as we are often forgotten up here and Lexus USA and Lexus Canada are 2 separate entities.

 

Time frame is for warranty coverage, but, the TSB is always active until it's taken care of by warranty OR by the owner.
That record stays in all search areas for that VIN.

Just in case I was sensing that the TSB was only active for a specified time.

Have a great day!

 

If any of you have cleaned the vehicle throttle's body before, you would have noticed that a majority of the carbon deposit on the throttle plate is on the back side. This deposit was caused by the backflow from the combustion process. So hopefully this new revised TB and these ventilation hoses will save the day.

The induction/intake air system is quite complicated. A catch can only help with issues related to incoming oil vapor, but not the backflow of intake air. If you are a member of SAE International, you could access many technical papers about the backflow of intake air, or try to research white papers on this.
A sample article on backflow is attached:
https://www.sciencedirect.com/scienc...06261912005971

The Toyota/Lexus MAF sensor is one examples. It has built-in intake air temperature sensors.
When the temperature detected by the temperature sensor (before heater) is much higher than that detected by the temperature sensor (after heater), the backflow of intake air is detected. Thus, the air/fuel timing might be altered to reduce backflow..

 

^He's right, the dirtiness of throttle body butterfly valves, in descending order, is typically the backside, the edges, and the front side. The gradient is big back to front. At least on every unit I've cleaned from my first FI car in 1988. Before that the same could be said about carburetor butterfly valves.

 

12262-38040 = IS F
12262-38090 = RC F (Up to 03/2021), GS F
12262-38091 = RC F (From 03/2021), IS 500
12262-38100 = LC 500, LC 500C

12263-38030 = IS F
12263-38050 = RC F (Up to 03/2021), GS F
12263-38051 = RC F (From 03/2021), IS 500
12263-38060 = LC 500, LC 500C

22030-38030 = IS F
22030-38050 = RC F, GS F, LC 500, LC 500C, IS 500

To be honest, the TSIB is a bit confusing for a couple of reasons:

1. The IS F is included, but none of the part numbers listed in the TSIB are for the IS F.
2. Maybe the IS F numbers were just missed, and they do instruct to check the EPC for the correct part numbers, but there are no supersessions for the IS F part numbers, only for the 2nd-gen 2UR-GSE.
3. If this TSIB applies to vehicles produced up to 2025, why is there a production change effective VIN listed for the IS F? Wouldn't it apply to all IS F's? The VIN listed is a 2014, but there are newer 2014 IS F's than what's listed.

There are other things as well, but whatever, here are the part numbers, haha.

Jeff

 

My vin is like 40 cars up from the cutoff, so if anything happens I'll post back, but I only got 1600kms on it, and dont drive that much. Hopefully I'm good.

 

Just do what I did and idle your car in a parking lot for over 20 minutes, and if it doesn't happen, you're good.

Just kidding... it does not happen to everyone, so maybe you are one of the lucky ones. Proactively cleaning the throttle body could help extend its life, but if it's gonna break, you might as well take the warranty claim.

 

Did he mean 40 units PRIOR to 7419...or after??

Pls read PM.

 

I am hoping mine will be OK but I will have the throttle body checked when I get my oil change done in November. I have 16 000 km (~10 000 miles) and so far so good - Fingers crossed

 

after 7419