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Old Jan 4, 2023 | 03:29 PM
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Originally Posted by JDR76
Sure, there's more complexity, but nothing crazy or intimidating. It's truly not much more than a battery and a few electric motors. It also deletes the alternator and starter (uses one of the electric motors for those functions).

I'll need to check again, but I am thinking there was one belt? Perhaps I should have said "fewer belt driven accessories" as they are electric and not belt driven.
And the inverter, inverter cooling pump, high voltage bus, rear motor, a bunch of current and load sensors, EPS, electrohydraulic brakes, battery cooling fans/system, all the controlling ECUs and datalinks for them, and I'm sure there are a few more things I'm forgetting that are added with a hybrid system.

There is a 2nd driveline present on hybrids.
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Old Jan 4, 2023 | 03:30 PM
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Originally Posted by LeX2K
There is no belt unless the engine happens to have a timing belt. Toyota's HSD is extremely reliable (I own one) but when they start to go wrong it can easily get to the point where the car has to be scrapped. Something simple like letting the traction battery go dead bricks the car.
Nah, just replace the dead sections. If it's your own car it's not too hard to do, if you own one I'm sure you have at least looked into it just to know about the process.
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Old Jan 4, 2023 | 03:37 PM
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Originally Posted by Striker223
And the inverter, inverter cooling pump, high voltage bus, rear motor, a bunch of current and load sensors, EPS, electrohydraulic brakes, battery cooling fans/system, all the controlling ECUs and datalinks for them, and I'm sure there are a few more things I'm forgetting that are added with a hybrid system.

There is a 2nd driveline present on hybrids.
I'm oversimplifying to make a point.

It all just works. People don't need to fear them. It's a proven drivetrain. (I'm speaking to my own experience with Toyota hybrids. I haven't tried other brands.)
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Old Jan 4, 2023 | 03:38 PM
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Originally Posted by Striker223
And the inverter, inverter cooling pump, high voltage bus, rear motor, a bunch of current and load sensors, EPS, electrohydraulic brakes, battery cooling fans/system, all the controlling ECUs and datalinks for them, and I'm sure there are a few more things I'm forgetting that are added with a hybrid system.

There is a 2nd driveline present on hybrids.
I'll 2nd that.

To work on a hybrid you need to be a mechanic and a DC electrical technician.
Your average shop is not qualified to work on these hybrids for anything more than "general service" and the smart ones won't.
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Old Jan 4, 2023 | 03:41 PM
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Originally Posted by Striker223
And the inverter, inverter cooling pump, high voltage bus, rear motor, a bunch of current and load sensors, EPS, electrohydraulic brakes, battery cooling fans/system, all the controlling ECUs and datalinks for them, and I'm sure there are a few more things I'm forgetting that are added with a hybrid system.

There is a 2nd driveline present on hybrids.
Are there drive belts? The first gen RX400h had a drive belt
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Old Jan 4, 2023 | 03:44 PM
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I would trust those RX's to repeat this performance every time.

Originally Posted by SW17LS
Interesting, I never had that issue with any of my Lexus vehicles...
Our family GX470 had that problem. Lexus took care of it on the affected wheels.
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Old Jan 4, 2023 | 04:13 PM
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Yes the 3rd Gen RX is very well engineered and can stand plenty of abuse. The only common failing point are 2010-2011 years with the rubber oil cooler pipes.

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Old Jan 4, 2023 | 04:33 PM
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Originally Posted by JDR76
I'm oversimplifying to make a point.

It all just works. People don't need to fear them. It's a proven drivetrain. (I'm speaking to my own experience with Toyota hybrids. I haven't tried other brands.)
I don't disagree with that as long as we are only talking about the Lex/Toyota systems, they are excellent and I will actually likely end up being the next owner of this car once the current owner trades up.

I can't seem to freaking escape RXs!
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Old Jan 4, 2023 | 05:00 PM
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Originally Posted by LexsCTJill
Are there drive belts? The first gen RX400h had a drive belt
There is one stretch belt for the engine water pump. Its original to the car still with no signs of issues
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Old Jan 4, 2023 | 05:36 PM
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Originally Posted by Striker223
Nah, just replace the dead sections. If it's your own car it's not too hard to do, if you own one I'm sure you have at least looked into it just to know about the process.
You for and I sure it's no big deal but people with a dead traction battery go to the dealer and they faint when presented with the estimate.
There is one stretch belt for the engine water pump. Its original to the car still with no signs of issues
What Toyota hybrids have that? I've only ever worked on the V6 ones specifically the 3MZ.
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Old Jan 4, 2023 | 06:49 PM
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Originally Posted by LeX2K
You for and I sure it's no big deal but people with a dead traction battery go to the dealer and they faint when presented with the estimate.

What Toyota hybrids have that? I've only ever worked on the V6 ones specifically the 3MZ.
A real "sell the car" moment for sure but honestly I have little compassion for that these days with how easy it is to look into it.

Engine wise one has the 2GR-FXE, the water pump is the only thing driven and I actually like that since it eliminates the need for a special water pump or electric drive head. Both of those things are very very expensive and water pumps by design are better off being mechanical due to the shaft seal always weeping ever so slightly. My Germans have 3 electric water pumps between the two and they are all known to have issues and I actually have a spare CWA100 pump in waiting for when the 4.0 has it pop.
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Old Jan 4, 2023 | 08:02 PM
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Love this post. Keep her alive!
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Old Jan 4, 2023 | 08:11 PM
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Originally Posted by JeffKeryk
Love this post. Keep her alive!
I likely won't need to do much, the owner only intends to keep it 1-2 more years and after that I'll most likely be the next owner with this replacing my Jeep. I doubt it will ever give any issue past the traction battery and brake pump/accumulator
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Old Jan 5, 2023 | 06:32 AM
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This was a fun thread, thank you for sharing!
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Old Jan 5, 2023 | 09:31 AM
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Originally Posted by TangoRed
I would trust those RX's to repeat this performance every time.



Our family GX470 had that problem. Lexus took care of it on the affected wheels.
Same here, our 08 GX and 08 IS both had the issue.
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