hi everyone
i have a 1998 ls 400 when driving the ignition lights stay on she drives great for 5 to 10 miles then dies lights on dash dim and then she stops wont start then leave her for 1o mins then she starts ok then drives for a mile then dies again think it may be a alternator fault but would like more advise if possible i have recharged battery and tried but same thing happens any help greatly appriecated

[quote name='jerryberry' timestamp='1296315402' post='744870']
hi everyone
i have a 1998 ls 400 when driving the ignition lights stay on she drives great for 5 to 10 miles then dies lights on dash dim and then she stops wont start then leave her for 1o mins then she starts ok then drives for a mile then dies again think it may be a alternator fault but would like more advise if possible i have recharged battery and tried but same thing happens any help greatly appriecated
[/quote]
Hi

I see you have already picked up on the other post.

You need to get the battery checked 1st; a poor battery/poorly connected battery/incorrectly charged battery will produce a host of strange electrical faults. Once you know the battery is good you can then have the alternator tested. If the battery is duff there is no point in checking the alternator.

It is worth noting that an apparently flat battery will have some charge if left for a while.

The tests will usually be done free by a battery supplier.

[quote name='SteveLS400' timestamp='1296320358' post='744879']
[quote name='jerryberry' timestamp='1296315402' post='744870']
hi everyone
i have a 1998 ls 400 when driving the ignition lights stay on she drives great for 5 to 10 miles then dies lights on dash dim and then she stops wont start then leave her for 1o mins then she starts ok then drives for a mile then dies again think it may be a alternator fault but would like more advise if possible i have recharged battery and tried but same thing happens any help greatly appriecated
[/quote]
Hi

I see you have already picked up on the other post.

You need to get the battery checked 1st; a poor battery/poorly connected battery/incorrectly charged battery will produce a host of strange electrical faults. Once you know the battery is good you can then have the alternator tested. If the battery is duff there is no point in checking the alternator.

It is worth noting that an apparently flat battery will have some charge if left for a while.

The tests will usually be done free by a battery supplier.
[/quote]






hi steve
i will try that first looked on net and cheapest new alternator is £130-£150 so battery would be cheapest option to replace battery if need be the one thats on is only 70amp looked on info and should be 80-90amp so could be battery is on way out

thank you for your advise

jerryberry

Lexus Dealers were selling replacement batteries for around £60.00 a while ago fitted so don't be put off asking them.
I see you are from Blackpool,I used to live there and worked at Poulton le Fylde, also bought my Celsior from there,guy at the Mornington Hotel

Yes I live near the zoo bought my ls from my mate he had it for 10 years not a problem looked after it engine wise but interior is a bit of a mess but getting there slowly he was a chain smoker so stinks a bit had it cleaned by a friend of a friend who's got a valeting place but needs doing a few times to get rid of smell she drives like a new car fantastic puts a smile on my face everytime I drive her just used for weekends just hope can this this problem sorted but as you say probably just the battery will call lexus Bolton for a price they wanted £180 a piece for the door mirror glass got them for a tenner each on eBay not perfect but they do the job
Thanks again for the help

I bought a new battery for my '98 MKIV from Lexus Reading in October and it was £65. Sounds like a good place to start

Thanks
Mike

Hi mike
Yeah seems like the right place by feed back so far going to give them a ring or try and call in this week

Thanks jerry

Well an update got new battery fitted it same thing happening lights that stay on are battery discharge warning light brake pad wear warning light brake system warning light rear light failure warning light low engine oil warning light low washer warning light any ideas please

Hi guys just an update turns out to be alternator at fault does anyone know the model of the alternator so I can order a new one before taking the old one out as not a lot of room to leave car on stands while I source one

Once again many thanks for all the advise and help to sort this problem

Hi I think the make is Nippondenso rated at 80A (Part # 27060-50190) but some models had the 100A version (Part # 27060-50200),there are normally some on Ebay for example.
Fitting the higher output one will not cause any problems.

http://cgi.ebay.co.uk/LEXUS-LS400-4-0-V8-ALTERNATOR-A2165-/190465741955?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2c58a49483#ht_973wt_907

Thanks Steve had a quote for £136.50 for a brand new one but they can't get it of the reg said they needed oem no there were DENSO
1002116390
DENSO
1002116440
LUCAS
LRA02165
LUCAS
LRA2165
TOYOTA
2706050070
TOYOTA
2706050080
TOYOTA
2706050140

Thanks again

HI EVERYONE SHES FIXED WAS ALTERNATOR GOT A BRAND NEW ONE FROM ALTERNATORSTARTERS IN HUDDERFIELD £156.00 INCLUDING DELIVERY ORDERED IT AT 16.00 WAS THERE AT MY HOUSE FOR 13.00 NEXT DAY FANTASTIC SERVICE GOT MY MATE TO FIT IT FOR £50 ALSO NEW SURPINTINE BELTS AT SAME TIME AS OLD WAS A BIT CRACKED RUNS GOOD AS NEW ALL LIGHTS NO OFF ON DASH THANKYOU FOR ALL YOUR ADVISE AND HOPE THIS HELPS SOMEONE ELSE IN FUTURE

Excellent result and thanks for letting us know the final outcome,PS your caps lock is on