1998-2000 ls400 alternator upgrade
04-29-20, 03:34 PM
#61
Racer
It won't start right away with a booster. Acts the same with or without booster, unless the battery is completely dead. I may not have been clear.
The new resting Battery reading from the cigarette is 9.5. I just went to start her up. Was sitting at 9.5. She started on the first crank because it was running earlier I think. On start-up reading goes to 14.3. After Idle for a couple minutes and turn off. turn back to ON right away, reading is down to 12.1.
I could put a new battery in and experience the same issue when starting at first. I could have a parasitic drain. A new battery is the first step to finding that out. If a new battery fixes the starting issue and keeps a charge then I'm possibly home free.
The new resting Battery reading from the cigarette is 9.5. I just went to start her up. Was sitting at 9.5. She started on the first crank because it was running earlier I think. On start-up reading goes to 14.3. After Idle for a couple minutes and turn off. turn back to ON right away, reading is down to 12.1.
I could put a new battery in and experience the same issue when starting at first. I could have a parasitic drain. A new battery is the first step to finding that out. If a new battery fixes the starting issue and keeps a charge then I'm possibly home free.
Does the it crank strong though or is it weak? How are the batter cables? Corrosion?
Last edited by Sin1UZFE; 04-29-20 at 03:46 PM.
04-30-20, 07:26 AM
#62
Pole Position
he said the ALT was ok but the Starter was bad.The CAA guy didn't want to sell me a battery because he thought the starter was bad so I didn't get one but I'll get it elsewhere.
I may take it to Canadian Tire and buy a battery and get them to inspect it and see what they say.
I may take it to Canadian Tire and buy a battery and get them to inspect it and see what they say.
The new resting Battery reading from the cigarette is 9.5. I just went to start her up. Was sitting at 9.5. She started on the first crank because it was running earlier I think. On start-up reading goes to 14.3. After Idle for a couple minutes and turn off. turn back to ON right away, reading is down to 12.1.
If a new battery fixes the starting issue and keeps a charge then I'm possibly home free.
If a new battery fixes the starting issue and keeps a charge then I'm possibly home free.
05-01-20, 03:03 PM
#63
Intermediate
Originally Posted by deanshark;
Is this the same guy that told you the alt was bad before, or same place different guy? I don't have a clue why the guy would tell you that you have a bad starter, that has nothing to do with charging the battery. Second opinion somewhere else is a good idea.
9.5 is very low but will still start the car. Starting the car and going to 14.3 is good, means the alternator is working. Turning off then turning key to ON (not running) and having it at 12.1 means the battery charged. (Again, Alt working) Battery draining while sitting means bad battery. Ya might have a dead cell in it or (something I've done back in my youth) maybe the battery was installed with a screw or something else sitting in the battery tray which would cut through the bottom of the battery, draining the acid.
05-01-20, 03:52 PM
#64
Pole Position
I took the 1998 in for a test of the battery/Alt/starter. They said battery is shot and the starter is bad. So this is like the 5th guy who said it was the starter. I bought the car cheap because it was diagnosed by Toyota with a bad starter(according to the guy i bought it from) but previous owner didn't want to get it done.
08-29-20, 09:43 PM
#65
Racer
My turn!
Wish me luck,ordered the Denso.
Part number says LS430, 2001-2004,nut and bolt from Toyota of San Bernardino was 5.40 with 9 something shipping,wow on that!
Im in about 242 dollars total.
Order summary from ebay,with free shipping.....
Denso Remanufactured Alternator part number 210-0508
Item ID: 324095093943
Total: $227.83
Wish me luck,ordered the Denso.
Part number says LS430, 2001-2004,nut and bolt from Toyota of San Bernardino was 5.40 with 9 something shipping,wow on that!
Im in about 242 dollars total.
Order summary from ebay,with free shipping.....
Denso Remanufactured Alternator part number 210-0508
Item ID: 324095093943
Total: $227.83
Last edited by spuds; 09-02-20 at 03:48 PM.
09-02-20, 10:53 AM
#66
Racer
Comparing a carquest piece of junk 'rebuilt' alternator to a Denso is night and day. That Denso looks brand spankin' new,truly a Remanufactured.The chain stores retailer 'refurb' is total trash.
Waiting on the 455 dollar delivered Longo Lexus new power steering pump and will get Blackbird back in shape,He deserves it
And I'll use Billy D. Powells Bleach jug cover on this alt,So thanks Billy and Yodaone for the alternator advice.
Billy's cover,post #13
https://www.clublexus.com/forums/ls-...pump-leak.html
Waiting on the 455 dollar delivered Longo Lexus new power steering pump and will get Blackbird back in shape,He deserves it
And I'll use Billy D. Powells Bleach jug cover on this alt,So thanks Billy and Yodaone for the alternator advice.
Billy's cover,post #13
https://www.clublexus.com/forums/ls-...pump-leak.html
Last edited by spuds; 09-02-20 at 11:04 AM.
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BNastee (03-25-22)
09-02-20, 03:24 PM
#67
Lexus Champion
Thread Starter
My turn!
Wish me luck,ordered the Denso.
Part number says LS430, 2001-2004,nut and bolt from Toyota was 5.40 with 9 something shipping,wow on that!
Im in about 242 dollars total.
Order summary from ebay,with free shipping.....
Denso Remanufactured Alternator part number 210-0508
Item ID: 324095093943
Total: $227.83
Wish me luck,ordered the Denso.
Part number says LS430, 2001-2004,nut and bolt from Toyota was 5.40 with 9 something shipping,wow on that!
Im in about 242 dollars total.
Order summary from ebay,with free shipping.....
Denso Remanufactured Alternator part number 210-0508
Item ID: 324095093943
Total: $227.83
2004-2006 LS430 alternators use a 4 pin connector socket and are not plug-and-play.
Lexus rebuilt alternators replace all internal components...with OEM components..the only thing reused are the Aluminum housings.
Big box auto parts doesn't disclose what parts are rebuilt or replaced....expect the worst.
Their lifetime warranty lulls you into thinking it is a quality rebuild.
09-02-20, 03:36 PM
#68
Lexus Champion
09-02-20, 03:49 PM
#69
Racer
The Denso says remanufactured in the USA on the box. The extra nut and bolt went into the mail today.
03-26-21, 11:20 AM
#71
Racer
Yes,got mine installed.Piece of cake,works like a charm.Was a beautiful piece of machinery.
On this thread starting post 50 is the cover I made.It also works fine without any issues,Im pleased with it.Probably overkill but when Im gone I dont want wife facing an un-needed repair if I can avoid it.
https://www.clublexus.com/forums/ls-...acement-4.html
On this thread starting post 50 is the cover I made.It also works fine without any issues,Im pleased with it.Probably overkill but when Im gone I dont want wife facing an un-needed repair if I can avoid it.
https://www.clublexus.com/forums/ls-...acement-4.html
Last edited by spuds; 03-26-21 at 11:31 AM.
03-26-21, 12:38 PM
#72
1. Does anyone knows why the 90-94 & 98-00 LS400's alternators are rated at 100 Amps while the 95-97 is only at 80 Amps?
2. Will the 01-03 LS430's alternator also fits the LS400's 95-97?
2. Will the 01-03 LS430's alternator also fits the LS400's 95-97?
03-26-21, 12:59 PM
#73
Lexus Champion
if memory serves, they have a different plug.. I could be totally wrong though, but that’s my recollection.
Edit: my memory failed. It was the 90-92 model that had a round plug. The 93-up used an oval plug. The oval plugs look similar on the 95-97 alternator and ls430 alternator.
Edit: my memory failed. It was the 90-92 model that had a round plug. The 93-up used an oval plug. The oval plugs look similar on the 95-97 alternator and ls430 alternator.
Last edited by sdls; 03-26-21 at 01:07 PM.
01-22-24, 06:03 PM
#74
Are you still using this?
Yes I followed the steps on here and the part numbers were especially helpful.everything went to plan. I like to stick with OEM as far as alternators go.
just make sure you install the bolt in the correct spot, you'll know if you put the bolt in the wrong spot, trust me
i actually have an extra bolt and nut I could sell you if you wanted.
just make sure you install the bolt in the correct spot, you'll know if you put the bolt in the wrong spot, trust me
i actually have an extra bolt and nut I could sell you if you wanted.
01-22-24, 06:06 PM
#75
Is the 430 alternator still working fine?
Yes,got mine installed.Piece of cake,works like a charm.Was a beautiful piece of machinery.
On this thread starting post 50 is the cover I made.It also works fine without any issues,Im pleased with it.Probably overkill but when Im gone I dont want wife facing an un-needed repair if I can avoid it.
https://www.clublexus.com/forums/ls-...acement-4.html
On this thread starting post 50 is the cover I made.It also works fine without any issues,Im pleased with it.Probably overkill but when Im gone I dont want wife facing an un-needed repair if I can avoid it.
https://www.clublexus.com/forums/ls-...acement-4.html