Here are a few Frequently Asked (and answered) Questions regarding the First Generation LS. Simply click on the underlined links to be taken to another thread with more details.

Section One - Forum rules and general navigation

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If you come across an informative site or tutorial please post the location (or the general topic of the thread), and link. I will organize them, and integrate this information into the FAQ for others benefit.

Through this FAQ the following terms will be used:

A/S= Air Suspension (factory-oem)
Rear Section= "axle back" ie. using OEM midpipe
Cat-Back= no OEM piping after the Catalytic Converters


Reference

• LS Paint Archive (all the color codes)

Tutorials

Note: Best place for general information will be www.Lexls.com, most of his tutorials for the 1LS will transfer over with only minor (if any) changes.


Maintenance:

Engine:

• UCF 2X Replace Starter Plunger and diagnosis (Applicable to UCF1X)
• DIY Engine and Transmission Bushings Replacement
• 95 LS400 Starter dead....DIY replacement completed. (Applicable to 1-LS)

Transmission:

• DIY Engine and Transmission Bushings Replacement

Fuel System & Intake:

Exhaust:

Suspension & Brakes:

• How to replace rear struts/shocks on UCF10
• Brake upgrade discussion/Supra TT Brake Upgrade
  [*[[url="https://www.clublexus.com/forums/ls400/279473-ucf20-21-front-brake-caliper-into-ucf10-11-the-mother-thread.html#post2591255"] UCF20/21 front brake caliper into UCF10/11?? (The Mother thread)

Steering:

• The First Gen Power Steering Bible
• Steering wheel tilt fix

Body:

• Hood shock/strut fix (The Mother thread)

Interior:

• How to fix the problem with non working reclining on drivers seat. Pictures inside

Electrical:

• Here is why you dont send your ecu to ATE to be repaired.
• Cigarette Lighter Fix

Instrument Cluster:

• Instrument Cluster Circuit Board is Bad! $1000 bucks!!!
• How to fix your speedometer needle when it does not work
• FUel Guage fix tutorial
• Cluster flicker & gas needle fix (with pics)

Lighting:

• How to replace tail light bulbs on UCF10
• How to replace third brake light bulbs on UCF20

Audio:

• LS400 audio setup thread

Modifications:

• Performance Mods for 1st Gen LS

Build Threads:

• BLKonBLK98 92 LS400 Build Log

Discussion Threads of Interest:

• Who has the most mileage on their LS400? (The Mother Thread)?
• Gas mileage...good-bad (The Mother thread)
• What octane gas do you use? (The Mother thread)
• What type of oil do you use? (The Mother thread)
• Shelf life of oil
• Unofficial LS400 buyer's guide

Fluids:
Engine Oil: 10w/5w-30 (depending on locale)
Transmission Fluid: Toyota T-IV or JWS 3309-spec fluid only
Coolant: Toyota Long Life or equivalent
Power Steering Fluid: Dexron III/Mercon Transmission Fluid Only (no PS fluid)
Brake Fluid: DOT3 compliant brake fluid
Differential Gear Oil: SAE 75w-90

UCF-1X bulbs:

Exterior-Low Beam
+89-92*: 9004 (*USDM Only) (2x)
+93-94: H4 aka 9003 (2x)
-Foglights
+89-94 : H3C (2x)
-Turn Signals (front and rear)
+1156 (2xfront/2xrear)
Side Marker Lights
-Front: 168/194 (2x)
-Rear: 1157 (2x)
Stop/brake Lights
-1157 (6x)
Reverse Light
-1156 (2x)
Third Brake Light
-921 (2x)
License Plate Lights
-168 (2x)

InteriorDome Light:
Front: 3022 (31mm festoon-type) 1x
-Rear:
Map Lights:
-Front: BA9s
-Rear: BA9s
Rear Pillar Lights:
- 168/194 (2x)
Door Lights:
- 168/194 4x
Glove Box Light:
-#74 1x
Ignition Cylinder Light:
-2721 or shaved #74 LED 1x
Front Footwell Lights:
#74 2x
Trunk Light:
- 168/194 1x