Preventive Maintenance - Round Two (1 Viewer)

[rav8]

As mentioned here, I still had some leakage after performing the valley plate repair. Crossing into the 140k territory, I wanted to get ahead of some things (alternator, belt, idler, radiator, tensioner, thermostat and water pump) before they chose to fail on their own. Weather was good today with rain coming tomorrow, so this morning was a go.

Prep:

Going with the radiator removal and belt-related stuff seems like the way to do it. Everything is out of the way and the only tight spots are during the fan shroud removal and twisting the alternator past the vane pump.

The Leak:

Upon removal of the water pump, I found that the gasket material had failed around the 5 o'clock position. The material on both sides of the gasket was just flaking away.

Post Alternator Swap:

With the vane pump pulled out of the way, you can see that there really isn't much room. Having the radiator, water pump and tensioner removed really makes this easier.

Check and Reassembly:

Serviced up with no leaks. Reassembled and took for a short drive to get ZPC and all that happy. Replacement of most of the belt-driven components resulted in an idle and drive far quieter than I have experienced maybe since purchase 70K+ ago. Very happy with how the day turned out. About 7 hours all in to fix one thing that was broke and a bunch that wasn't yet.

 

[MrTorgue]

100% recommend this. Especially the tensioner and idler. Those often get forgotten. I've replaced my tensioner and now my idler is needing replacement. Let us now how it goes with your maintenance!

 

[rav8]

100% recommend this. Especially the tensioner and idler. Those often get forgotten. I've replaced my tensioner and now my idler is needing replacement. Let us now how it goes with your maintenance!

This covers about 90% of what I want done. Tomorrow is power steering and trans fluid swaps. With the money I've saved it's going to be difficult to not spend some money on a bumper, rails and winch before 2025 is through.

 

[MrTorgue]

This covers about 90% of what I want done. Tomorrow is power steering and trans fluid swaps. With the money I've saved it's going to be difficult to not spend some money on a bumper, rails and winch before 2025 is through.

I'm with you brother. I've taken 2025 to task on getting a lot of what I have remaining done before the large purchase (roof rails, RTT, fridge, etc). My next task is the idler, then spark plugs. Can you believe I'm still on my factory plugs 192,7XX miles later?

 

[Cold Iron]

Wise man IMO! I'm getting ready to hit 50K on my 19 and already started a list in google docs named GX PMS (Planned Maintenance System). Somewhere around 90-100K I will do everything on the list sooner if something fails between here and then. Not sure about the valley plate issue but may add that to the list. Or wait for it to happen.

Currently on the list I have: PCV valve, water pump, thermostat and radiator, tensioner pulley, serpentine belt and upper/lower radiator hoses.

When I hit that milestone I should be well into my 70's and will go out on a limb and say that I will not be doing it myself then LOL.

This morning on FB this came across my USN Pit Snipe feed

I laughed. Then I may have cried a little bit when I realized I am getting too old for that chit.

You done well! I liked your OP then unliked it so that I could like it again

 

[Banandalorian]

For the ZPC do you just use the paperclip method or do you have Techstream? Or is there a mysterious third thing I am not aware of?

 

[rav8]

For the ZPC do you just use the paperclip method or do you have Techstream? Or is there a mysterious third thing I am not aware of?

I may be confusing the ZPC with something else. Typically drive straight at 25 mph for a short time (1/4-1/2mi). I may be thinking yaw sensor cal. I do use Techstream for lots of other stuff but not in this case.

 

[Banandalorian]

I may be confusing the ZPC with something else. Typically drive straight at 25 mph for a short time (1/4-1/2mi). I may be thinking yaw sensor cal. I do use Techstream for lots of other stuff but not in this case.

As far as I know, the ZPC requires an initiation procedure that you trigger either via techstream or via a trigger sequence through the OBD II port under the dash. There are a bunch of videos on how to trigger that via plugging paper clips into the right OBD ports and touching them together in sequence. I need to do that but am just nervous about sticking paper clicks into electrical connections in my Lexus. I was hoping you could say "the paper clip method is easy and works fine"

 

[xychromosome]

"the paper clip method is easy and works fine"

Worked for me when I had to do the calibration following crawl control install

 

[rav8]

As far as I know, the ZPC requires an initiation procedure that you trigger either via techstream or via a trigger sequence through the OBD II port under the dash. There are a bunch of videos on how to trigger that via plugging paper clips into the right OBD ports and touching them together in sequence. I need to do that but am just nervous about sticking paper clicks into electrical connections in my Lexus. I was hoping you could say "the paper clip method is easy and works fine"

"the paper clip method is easy and works fine"

Worked for me when I had to do the calibration following crawl control install

My mind is kinda fatigued from a week of the Red Sox Stomach Bug ripping it's way through the household, so please forgive the mistake.
I have used the paperclip method with success prior to using Techstream. The paperclip method is actually easier and takes less time.

 

[Rednexus]

I used a OBD2 connector pigtail ($8 on Amazon) and a toggle switch (~$7 at the hardware store) to make a ZPC device. Putting the toggle switch on connects the two pins just like the paperclip. I sliced out the rest of the OBD2 pigtail other than the 2 wires. It's kept in the rig. I really need a ZPC as my rig has been aligned a couple times since my last ZPC and I'm having VSC kick in more often than note.

 

[rav8]

Almost forgot...if you are doing all this, you might add these to the list.

 

[Acrad]

Reminder… ‘20+ OBD changes don’t allow for paper clip method for ZPC

 

[rav8]

Reminder… ‘20+ OBD changes don’t allow for paper clip method for ZPC

That's another reason why I like OG GX460's the best.

 

[MrTorgue]

Almost forgot...if you are doing all this, you might add these to the list.

View attachment 3875941

I really need new splash guards. Mine completely disintegrated. Got a link to those?

 

[rav8]

I really need new splash guards. Mine completely disintegrated. Got a link to those?

Here you go!

 

[MrTorgue]

Here you go!

Rock on, thanks!

 

[sheptastic]

I’ve been happy with the Arc Splash Guards

2010-2024 Lexus GX 460 TriXpoly Splash Guards

Ark TriXpoly Splash Guards and Micro Deletes for the 2010-2024 Lexus GX 460, made with Ark Splash Guards advanced TriXPoly material. This exclusive blend sets a new standard for durability and performance, ensuring your GX 460 stays protected through the toughest conditions.

arksplashguards.com

 

[r2m]

I have used the paperclip method with success prior to using Techstream. The paperclip method is actually easier and takes less time.

Agree with the pain in the neck of using Techstream. Hauling my laptop downstairs, finding a place inside the cab to set the laptop where I can actually use the keyboard and touch pad, finding what I need in Techstream, etc.
I have MT, but have yet to install the CC. When I do, I'll probably do the paperclip method.

 

[r2m]

Here you go!

I’ve been happy with the Arc Splash Guards

2010-2024 Lexus GX 460 TriXpoly Splash Guards

Ark TriXpoly Splash Guards and Micro Deletes for the 2010-2024 Lexus GX 460, made with Ark Splash Guards advanced TriXPoly material. This exclusive blend sets a new standard for durability and performance, ensuring your GX 460 stays protected through the toughest conditions.

arksplashguards.com

Great links, need to replace mine after I tore them all up.
Just added both these websites to Guide to GX 460 Builds and Aftermarket Products - https://forum.ih8mud.com/threads/guide-to-gx-460-builds-and-aftermarket-products.1168653/page-6