Notices
Maintenance Discuss common Lexus maintenance questions here.

90 LS 400 need help identyfyigproblem

Thread Tools
 
Search this Thread
 
Old Jan 22, 2016 | 10:34 AM
  #1  
SammyV90's Avatar
SammyV90
Thread Starter
Driver School Candidate
 
Joined: Jan 2016
Posts: 5
Likes: 0
From: CO
Default 90 LS 400 need help identyfyigproblem

I have a 90 LS400 and it has bee giving me problems ately check engine light is on trsc light is on brake lihght with ! Is on and the oil light comes on when im driving on the highway i believe i might have a little leak somewhere because its all over the right side of engine powersteeribg canistr alternator(surprised ithasnt shorted it out yet) when i start my car it sounds really rough then it idles reallhugh about 2500 rpms then then after about 10-15 of warming up it idles back down to about 400rpms. While warming up it smokes out of the exhaust white smoke.also, seems to me she has her good days where she has ALLLL of her power then she has no get up n go the next. She makes a weird like whining noise. When i accelerate think its coming frim eithrr center or right hand side. I love this car and will buy another if i have to get rid of this one.. Can someone please tell me whats goin on.. Ive read through so many forums here snd ive read different thibgs that might be wrong done the diognastics myself using the wire trick. I came up with the code "RPM SIGNAL no2. I cant see
Reply
Old Jan 22, 2016 | 04:29 PM
  #2  
autotech13's Avatar
autotech13
Instructor
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2014
Posts: 779
Likes: 261
From: MA
Default

I think it's time for a new car!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
connsean
LS - 1st and 2nd Gen (1990-2000)
10
Aug 10, 2012 08:17 AM
Scorny
LS - 1st and 2nd Gen (1990-2000)
7
Apr 21, 2012 09:16 AM
jststrd
LS - 1st and 2nd Gen (1990-2000)
5
Apr 28, 2011 08:48 PM




All times are GMT -7. The time now is 05:36 AM.

story-0
10 Lexus Designs That Have Aged Like Fine Wine

Slideshow: Some luxury cars chase trends, but these Lexus models look better now than they did when they first rolled into showrooms.

By Verdad Gallardo | 2026-05-06 17:58:29


VIEW MORE
story-1
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

Slideshow: How to Get the Best Fuel Economy with a Hybrid and Plug-In Hybrid!

By Michael S. Palmer | 2026-05-05 20:54:44


VIEW MORE
story-2
10 Best Lexus Models No One Remembers

Slideshow: 10 best Lexus models no one remembers.

By Joe Kucinski | 2026-05-05 17:33:28


VIEW MORE
story-3
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

Slideshow: diving into 4Runner TRD Off-Road Premium's pricing, performance, fuel economy, features, and amenities!

By Michael S. Palmer | 2026-04-23 13:09:18


VIEW MORE
story-4
Top 10 Lexus & Toyotas to Drive Before You Die!

Slideshow: the 10 Lexus and Toyota vehicles you need to drive before you die.

By Joe Kucinski | 2026-04-23 10:34:24


VIEW MORE
story-5
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

Slideshow: Top 10 Lexus/Toyota models with the lowest 5-year depreciation rate.

By Joe Kucinski | 2026-04-08 12:19:06


VIEW MORE
story-6
Lexus LC500 Convertible Auction: A Preview of Rising Values?

The LC hasn't even disappeared from the Lexus lineup yet, and we're already seeing signs of an explosive market.

By Brett Foote | 2026-04-06 09:25:02


VIEW MORE
story-7
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

Slideshow: comparing the pricings, specs, power, fuel economy, fun-factor, and features of the GX 550 Luxury+ and TX 550h+ Luxury.

By Michael S. Palmer | 2026-03-19 13:44:11


VIEW MORE
story-8
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

Slideshow: 9 best Lexus models you can buy for half price and 1 you should avoid

By Joe Kucinski | 2026-03-19 12:01:07


VIEW MORE
story-9
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

Here's everything you need to know about the latest NX.

By Brett Foote | 2026-03-19 11:56:59


VIEW MORE