1999 Lexus GS 400

Asked by May 26, 2016 at 12:23 PM about the 1999 Lexus GS 400

Question type: Maintenance & Repair

Took my car to a certified mechanic to do
breaks, engine mount, tranny mount,
p/s, spark plugs.... A regular tune up!  
When done I was told alternator went out
because of a oil leak from my p/s pump....
Ok replace that!  When they finish built
and started car it started burning a 120v
fuse...   Next step take car to an
electrical mechanic... Found out the new
alternator came with a loose bolt not
doing correct ground... They fixe that!! Car
was doing great!!! 1-2 weeks later leave
my car with hazards on for over 1 hour
when turn car on all good until I start
driving I notice wiper blades run 1 time
with out me touching it + Dash Break light
turns on.... When I check my 120v fuse had
burn....  Had to take my car back to
the machanic.... Replaces alternator but
now is burning the fuses like a electric
lighter.... Car turns on but it will start to
burn the fuse... You can actually see it
turning red!   S.O.S. HELP! Alternator is
giving a charge of 13-14volt this car is all

Thank you in advance for reading & giving
a helping hand!

1 Answer


Find a REAL tech this is a simple electrical issue there a short / ground issue something calling out to be FOUND! CLUE WHICH FUSE IS BURNING THATS YOUR CIRCUIT TO INSPECT FIRST multimeter or oscilloscope 20 minutes max time to locate.. Voltage drop testing first..simple '99 can display some Computer Data too connect to DTL port read it move on... call and find someone! Regards

Your Answer


Lexus GS 400 Experts

  • #1
  • #2
    Kyle Rogan
  • #3
    Keith Boyd
View All

Related Models For Sale

Used Lexus GS 300
5 listings starting at $6,495
Used BMW 3 Series
159 Great Deals out of 2,099 listings starting at $1,195
Used Mercedes-Benz C-Class
132 Great Deals out of 1,569 listings starting at $2,899
Used Lexus ES 300
8 listings starting at $4,750

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.