Starting

90

Asked by Jul 23, 2013 at 04:41 PM about the 1993 Lexus LS 400 Base

Question type: Maintenance & Repair

I have a93ls400.it will start but stops
immediatly

1 Answer

most problems of this nature are related to ground...as you know there is but one hearty connection from the 1/0 cable to the battery....well where it attaches to the ground is a trouble area, 'cause 300 or so AMPS are going to "weld" the connection...is okay at first...then gets clobbered with corrosion making the ground unreliable...such so that it is impeding on the ECM/ECU ability to perform basic ignition duties...think about it....varying voltages...drops down to 10Volts and up to 12.5 randomly with amperages in the hundreds of amps....but all we need is perhaps 750 mA~ here is the problem with this system of linking the battery demands to the computer....albeit a BUSS----when will they learn?....clean the 1/0 connection with a coarse wirebrush to assure connectivity...also the Battery should be newer than five years old or else we will have problems with the alternator as well....now~

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • Ignition cranks but won't start 4 answers

    I turned the key it cranks but won't start. Tried again it cranks but won't start? I jus drove it 8 hours earlier and it started with no problems.

    1990 Lexus LS 400 Base

    -

    Maintenance & Repair

  • Car died and now it won't start 4 answers

    I was driving my 96 lexus when I smelled something burning my car died and now it won't start I have power to everything but it just won't start

    1996 Lexus LS 400

    -

    Maintenance & Repair

  • why wont my lexus ls400 start? 1 answer

    all it does is click when i turn the key to start it

    1990 Lexus LS 400

    -

    Maintenance & Repair

  • ls 400 wont start 2 answers

    I ran out of gas in myh car and put more in it and now it wont start any suggestions

    Lexus LS 400

    -

    Maintenance & Repair

  • My car act like it wants to start but it will not start 1 answer

    The starter will ignite but it will not start the car

    1994 Lexus LS 400

    -

    General

Search Lexus LS 400 Questions

Lexus LS 400 Experts

#1 Tom Demyan
Tom Demyan
Reputation 460
#2 dandyoun
dandyoun
Reputation 220
#3 Sam Lee
Sam Lee
Reputation 180
View All

Related Models For Sale

Used Lexus GS 300
30 Great Deals out of 775 listings starting at $2,495
Used Lexus ES 300
6 Great Deals out of 882 listings starting at $1,800
Used Toyota Camry
1,001 Great Deals out of 90,918 listings starting at $650
Used Lexus SC 400
63 listings
Used Honda Accord
813 Great Deals out of 84,287 listings starting at $1,050
Used Mercedes-Benz S-Class
171 Great Deals out of 6,479 listings starting at $2,700
Used BMW 3 Series
974 Great Deals out of 31,729 listings starting at $1,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.