Alternator replacement 2005 LS 430
#16
Pole Position
Hello Chunkyda, thanks for the info of replacing the alternator, cause I'm sure I'll need to use it sometime in the future. But, I'm puzzled about the info explaining the use of in car data screen to read the info of the alternator. I tried the steps you mentioned, but it didn't work. I have the 2002 ls 430. I tried holding down the option-tab, and switching the park lights both slow and fast, and still nothing appeared. Should I push the 'ok' tab to bring up the screen before I go through the steps, or is there another step you may have left out, thinking I'd know? I had a 2001 bmw 730il, and it also had such an option, but it was a lot easier to use.
#17
Pole Position
The on-board voltage reading shown at the bottom of post # 1 above is not available on '01 - '03. It does come up on my '06. The voltage reading on the screen (just after start-up) fluctuates from 14.1 - 14.3 v. --> 65K miles on the clock.
#18
Pole Position
my alternator seems to be whining so i checked voltage through the nav screen and i am reading 12.2v not running and 13- 13.3 running.should i replace the alternator ? anyone know the best place to get a denso.thanks jim
Last edited by jimbosr1; 07-26-15 at 09:51 AM.
#19
Pole Position
What year, Jim? The '01 - '03 is part #210-0508. '04 - '06 is #210-0507.
Amazon is best for Denso remanufactured since no core charge. Here's the '04 - '06 Denso.
Here's my thread: https://www.clublexus.com/forums/ls-...001-ls430.html
Read this thread for '04 '- '06: https://www.clublexus.com/forums/ls-...ernator-3.html
Amazon is best for Denso remanufactured since no core charge. Here's the '04 - '06 Denso.
Here's my thread: https://www.clublexus.com/forums/ls-...001-ls430.html
Read this thread for '04 '- '06: https://www.clublexus.com/forums/ls-...ernator-3.html
#20
Pole Position
tom its a 06 with 102k miles.i ordered one from advanceauto for $224 total core charge is $65 so $159 after its all said and done,denso alternator.i wish i could pick up at store but shipping only.
#21
Lexus Fanatic
iTrader: (1)
Jim, I would have the alternator properly tested first. Voltage is not really the proper way to test them. Amperage under load is. Voltage can vary a lot based on many factors. I kind of got carried away figuring this out and pretty much needlessly replaced my alternator but it's not a big deal. I don't have to worry about it now. Bad cell(s) or a failing battery will also affect the alternators readings. There are lots of shops in GA that can properly test the units. Amperage and doing a voltage drop test would be best.
Also, If the battery is old might be time to go ahead and replace it. I went with the Everstart Maxx line at Walmart made by Johnson Contols based off Consumer Report reviews. Comes with a good warranty.
Also, if you do need or just want to replace it I would seriously suggests not using the autozone brand and getting an oem Denso. The quality difference is tremendous. Amazon has good deals on them. LexTechs can source them locally too but their prices are not so great.
Also, If the battery is old might be time to go ahead and replace it. I went with the Everstart Maxx line at Walmart made by Johnson Contols based off Consumer Report reviews. Comes with a good warranty.
Also, if you do need or just want to replace it I would seriously suggests not using the autozone brand and getting an oem Denso. The quality difference is tremendous. Amazon has good deals on them. LexTechs can source them locally too but their prices are not so great.
Last edited by Lavrishevo; 07-27-15 at 02:02 AM.
#22
Lead Lap
iTrader: (1)
Lavrishevo is right on the money. A toyota or Lexus dealer can do a full diagnosis or just go to a parts store for a fast/free check.
#23
I checked mine and it sis 13.7 at Coled star but then I maximum get 13.3 to 13.6. Battery new not eavin a month old.
New alternater will be in the plan next month.
The OEM is 130 amp, is it beter to fit a bigger one say 160 amp. Will it effect any thing.
Mine is OEM not planing to do any upgrades like amplifier. My understanding is the bigger alternater will last longer and reduce the load on the engine.
New alternater will be in the plan next month.
The OEM is 130 amp, is it beter to fit a bigger one say 160 amp. Will it effect any thing.
Mine is OEM not planing to do any upgrades like amplifier. My understanding is the bigger alternater will last longer and reduce the load on the engine.
Last edited by Fixman; 07-27-15 at 09:41 AM.
#25
Of cours I will do a load test befor I replace it. But got the care about 2 months ago, the battery died after a month. Battery was new about 5 months old, but decided to go with a new one (Duracell) because of 2 things. The car was parked for about a month during that time it did not move mutch and the battery was AC Delco witch is not an amirican make. And the quality of that battery is rubbish at best, it's like ther is a timer in them they go bad after the warranty is over.
Had one died a day after warranty, another a week after, the there'd 1 months after the warranty.
Had one died a day after warranty, another a week after, the there'd 1 months after the warranty.
#26
Pole Position
Jim, I would have the alternator properly tested first. Voltage is not really the proper way to test them. Amperage under load is. Voltage can vary a lot based on many factors. I kind of got carried away figuring this out and pretty much needlessly replaced my alternator but it's not a big deal. I don't have to worry about it now. Bad cell(s) or a failing battery will also affect the alternators readings. There are lots of shops in GA that can properly test the units. Amperage and doing a voltage drop test would be best.
Also, If the battery is old might be time to go ahead and replace it. I went with the Everstart Maxx line at Walmart made by Johnson Contols based off Consumer Report reviews. Comes with a good warranty.
Also, if you do need or just want to replace it I would seriously suggests not using the autozone brand and getting an oem Denso. The quality difference is tremendous. Amazon has good deals on them. LexTechs can source them locally too but their prices are not so great.
Also, If the battery is old might be time to go ahead and replace it. I went with the Everstart Maxx line at Walmart made by Johnson Contols based off Consumer Report reviews. Comes with a good warranty.
Also, if you do need or just want to replace it I would seriously suggests not using the autozone brand and getting an oem Denso. The quality difference is tremendous. Amazon has good deals on them. LexTechs can source them locally too but their prices are not so great.
two weeks ago i replaced the tensioner pulley and come to find out it is my alternator.the housing for the tensioner is bolted to the alternator so the vibration(noise)went straight to the tensioner pulley.will update when i get the alternator.
#28
Pole Position
i put a new battery in 2011 and it is the yellow top and havent had any problems yet.will see after the repair.
#29
Lexus Fanatic
iTrader: (1)
I use to have a yellow top in my LS400 as well. I always thought they were good batteries but I never saw them included in the Consumer Reports reviews. Not sure why. They are known to be more forgiving for those who play music with the car off, draining the battery down, and being charged rapidly by the alternator.
#30
Pole Position
I use to have a yellow top in my LS400 as well. I always thought they were good batteries but I never saw them included in the Consumer Reports reviews. Not sure why. They are known to be more forgiving for those who play music with the car off, draining the battery down, and being charged rapidly by the alternator.