2011 LX570 Alternator woes. Any "while I'm in there" items? (2 Viewers)

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roadsalt

Crusty 05 LX470
Joined
Aug 15, 2023
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298
Location
New Jersey
4 weeks into LX570 ownership and my alternator has gone. Honeymoon is over.

I'll get one ordered & will replace it... along with the battery. Are there any "while I'm in there" parts to do? I have no records of the water pump being done, and it's a 139k car.

School me people.
 
You can do the alternator without pulling the radiator.

Pulling the radiator will make it easier, as you'll have more room. If you go down that route, waterpump, idler pulley, tensioner pulley, thermostat, would all be reasonable to consider.
 
Is the water pump on a dead set replacement schedule like the 100 series?
 
Is the water pump on a dead set replacement schedule like the 100 series?
The water pump is very robust. Many folks will change it around 100k miles or thereabouts. Mine was weeping through the weeping hole, enough that I wanted to replace it. I have subsequently learned that the weeping hole functions to enable "leaked" coolant as a means of removing minor solid contaminants that get stuck.

If it isn't making funny sounds or leaking profusely, you probably don't "need" to change it.

The alternator can be replaced without removing the radiator, but access is difficult and removal from the front/bottom is very tight. @TeCKis300 wrote a thread with photos that I found very helpful.
 
PCV is real easy to replace then too.
 
The water pump is very robust. Many folks will change it around 100k miles or thereabouts. Mine was weeping through the weeping hole, enough that I wanted to replace it. I have subsequently learned that the weeping hole functions to enable "leaked" coolant as a means of removing minor solid contaminants that get stuck.

If it isn't making funny sounds or leaking profusely, you probably don't "need" to change it.

The alternator can be replaced without removing the radiator, but access is difficult and removal from the front/bottom is very tight. @TeCKis300 wrote a thread with photos that I found very helpful.

I recently replaced my original waterpump with 221k on it as a “while I’m in there” item and it was in flawless condition and bearing spun like new. I was quite impressed

While in there:
-idler pulley
-belt
-fan bearing thing
-tensioner pulley

Details in my build thread in sig
 
Alternator options out there?
104210-6140 DENSO is not available
 
I replaced the radiator at 172k (or 176k?) and with it a bunch of other stuff…but not the alternator.

Alternator decided to go at 190k-something. Ugh. Got that done.

Then the coolant valley repair at 205k. I’m running out of stuff to fix, thankfully.
 
I bought a denso reman from Rock Auto. Tough price to beat!
 
I found a scrap car with an OEM in it for $200. It only had 40k miles on it.

Thankfully my rad was done by the PO
 
For as much of a royal PITA this job is, I wouldn’t put it anything other than new OEM personally
 

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