80-series FAQ for General Info, Modification and Repairs (1 Viewer)

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Sep 14, 2003
Centennial, Colorado

The Frequently Asked Questions (FAQ) for the 80/LX450 series tech section continues to be a work in progress. The goal is to have links in the below to other threads and tech articles. By having these linked, instead of pasting the text, the threads will remain live. The live threads can continue to be updated and/or modified for things such as part numbers, adding on additional insight or after a period of time, some follow up information.
These FAQs have been put together by FORUM members. They have put extensive time and research into them. So when you find yourself using them, it would not be a bad thing to send off a thank you.
Again, these will continue to be updated and we will continue to add new ones as we move forward. If you have an idea for a new faq, or would like to take ownership of pulling one together, then don't be shy about it, you'll be helping everyone

Acronyms and Definitions - Wondering what those Acronyms mean, look here. PM a mod if you see one missing.

Thinking of Buying- If you are thinking of buying or getting ready to look at an 80 or an LX450, look here for helpful links.

General - The General Links include descriptions of differentials, Factory Service manuals, links to Slee's and Safari's Technical Page and how to find a place to fill your CO2 tank

Modifications - Need to start modifying your rig? Look here for what other forum members have done from roof racks, speedo corrections, tires to . . . . If you have an idea, let us know and we can add it! Some modifications are also included in the Accessories link below

Maintenance/Trail Fix items- If you need to perform some maintenance from Rear/Front Axle rebuilds, Changing Starter Contacts, pesky Heater Hose, Fluid Changes, Filters, Injector Cleaning to wiper blade changes, look here! In addition, our local Oil experts provide their recommendations.

Bling- Need to add a little Bling, treat your leather, make the paint shine, look here!

4 :banana: Repairs - Need to replace your Headgasket or rebuild your Transmission, look here!

Want to see how those Accessories look - - Links to threads showing, bumpers, sliders, lifts, tires, OnBoard Air Systems, etc. as they look installed on your fellow members rides. Also a Link to Storage ideas can be found here

Where can I get those Accessories - Links to Vendor sites for lots of those great accessories.

Engine Enhancements - A new section dedicated to Engine Enhancements such as Turbo and Super Chargers

Forum Members ROTW (Rig of the Week) Write-ups. Learn here what others have done to their rigs.

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Acronyms and Definitions for FAQ

Common Forum Lingo:
AFAIK - As far as I know
BTW - By the way
FWIW - For What it's worth
FYI - For your information
IIRC- If I recall correctly
IMHO - In my humble opinion
IMO - In my opinion
LMAO - Laughing my @$$ off
LOL - Laugh out loud
OTOH - On the other hand
ROTFLOL - Rolling on the floor laughing out loud
ROTFLMAO - Rolling on the floor laughing my ass off
RTFM - Read the F-ing Manual
RTH- Real Time Help
YMMV - Your methods/mileage may vary

Technical Acronyms:

A343F = Automatic transmission used in LC's from 95-97

A442F = Automatic transmission used in LC's from 93-94 AKA "the bus tranny", Also some diesels from 95-98

A440F = Automatic transmission used in LC's from 88-92 (Non-electronically controlled predecessor/version of the A442F)

ABS - Acronym for Anti-lock Braking System. This system uses a computer to control your brakes on your car by applying and releasing your brakes quickly to prevent skidding or sliding from occuring.

ALT - Alternator: power generator for automobiles

ARB - australian 4x4 accessories manufacturer

AT - Automatic Transmission

AT - (tires) All Terrain

ATF - Automatic Transmission fluid

BIRF - Birfield: Found in the front axles of our rigs; they are constant velocity joints that transmit power through variable angles, at constant velocities.

CEL - check engine light, sometimes refers tocode that cuased light that can be read by a code reader

CDL Switch- Center Differential Lock Switch- Switch installed to allow the Center Differential to be locked when the transfer case is in High. The actual Center Differential Lock is in the Transfer Case.

Reference on operation of Center Differential. Diffs and Difflocks for Dummies (George Couyant from [URL="http://www.lcool.org"]www.lcool.org) [/URL]- Can Purchase CDL from Cdan (Totota) or Slee offroad[/I]

DS- Driver's side

DS: Drive Shaft=shafts that carry power and torque from the engine/tranny/xfer case to the axles.

DC DS=Double Cardan Drive Shaft=a pair of joints in a drive shaft that allows the tube to move in various directions and angularities.

Diffs - Differentials: found in the front and rear axles that consists of gears that transmit equal power and torque even if they rotate at different speeds.

ECT - Electronically Controlled Transmission - allows the engine to rev to a higher rpm before shifting to the next gear. Basically changes the shift points for the transmission. (Best for towing or heavier loads)

EGR = Exhaust Gas Recirculation valve

EWD or WD - Electrical Wiring Diagram, (part of FSM set)

FAQ - Frequently Asked Questions

FHH = Firewall Heater Hose

FJ80 - An 80 series Land Cruiser powered by a 3FE engine.

FSM - Factory Service Manual. The "bible" as published by the manufacturer. Used to guide in repairs

FZJ80 - An 80 series Land Cruiser powered by the vastly superior :)flipoff2: ) 1FZ-FE engine.

HDJ80 - An 80 series Land Cruiser powered by a 1HD-T turbocharged diesel engine.

HDJ81 - Japan Domestic Market HDJ80

HG - Head Gasket

HZJ80 - An 80 series Land Cruiser powered by a 1HZ naturally aspirated diesel engine.

HZJ81 - Japan Domestic Market HZJ80

IAC = Idle Air Control solenoid

JDM- Japan Domestic Market- Refers to items particular to vehicles manufactured and sold in the Japanese market.
Items include but are not limited to:
Power retracting mirrors
Dual air conditioning
Adjustible shocks
and various cool and some gawdy accessories.

LB/FT - pound feet of torque

LB/IN - pound inches of torque

LHD (Left-Hand Drive): steering wheel on the left side, driving on the right side of the road

LSPV - Load Sensing Proportioning Valve

MAF - Mass air flow sensor

MIL - Malfunction Indicator Light (same as a CEL)

M&S - (tires) Mud and Snow

MT - Manual Transmission

MT - (tires) Mud Terrain

NA - Naturally Aspirated - An engine that is not turbocharged nor supercharged

OBDII - On Board Diagnostics Port available on ALL cars sold in the US 199 and later. Allows a common intercface tool to be connected to read and reset engine fault codes (CEL). Many Autpart stores will read your code for free vs. paying the dealer.

OEM - Original Equipment Manufacturer. (Toyota in this case)

OME - Old Man Emu. An Australian four wheel drive specialty manufacturer that makes all kinds of cool stuff that causes us to empty our billfolds.

PCV Valve - The Positive Crankcase Ventilation valve is an emissions control device that routes unburned crankcase blowby gases back into the intake manifold where they can be reburned.

PHH - Pesky Heater Hose. A 100 mm length of 16mm (5/8 inch) straight heater hose located at the extreme LH rear corner of the 1FZ engine cylinder head. So named because it is not the easiest thing to change-out even under ideal conditions.

PI - Propane Injection - Propane is injected into the intake as a diesel catalyst for a more complete burn and additional power

PM - preventive mantenance

PM - private message

PO - Previous owner

POS - Piece of S#1T

PS- Passenger side

PSI - Pounds per square inch - A measure,emt of pressure.

RHD (Right-Hand Drive): steering wheel on the right side, driving on the left side of the road.

RPM - Rotations Per Minute

SOA - Sprong Over Axle - A suspension lift for a leaf (Vs 80 series coil) spring suspension. It places the leaf springs on top of the axle vs the bottom.

SC or S/C = Supercharger/Supercharged

SSM - Special Service Materials

SST - Special Service Tools

SUA = Spring under axle. Stock configuration for a Leaf (80's use Coil)Spring Vehicle (vs. SOA previously mentioned).

TB - Throttle Body: controls air flow into engine system in response to gas pedal depression.

TC or T/C = Turbocharger/Turbocharged

TLCA - Toyota Land Cruiser Association (tlca.org) - The Toyota Land Cruiser Association (TLCA) is a 4 wheel drive organization open to all Toyota 4 wheel drive vehicles (except sedan types). This includes all models of Land Cruisers, 4Runners, and 4x4 trucks.

TPS = Throttle Position Sensor, may also be the "kick down" cable

USDS- US driver's side or the left-hand side of the vehicle.

USPS - US passenger side or the right-hand side of the vehicle.

VSV - Vacuum Switching Valve. An electrically controlled valve that diverts vacuum according to the position of the switch.

xfer=Transfer case: sits behind transmission, has front and rear drive shafts coming out of it, and distributes power from the transmission to the front and rear differentials/axles.
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FAQ Chapter 2 General

Diffs and Difflocks for Dummies (George Couyant from Don't understand How Lockers work, click here


Basics on differentials

Basics on 4wd vs AWD (Forum Members, Mar 2004)

Factory Service Manual(s) via PDF (RavenTai, April 2004)

How Big a Winch should I get for my 80/LX450 (Forum Members Dec 2005)

Slee Off Road Tech Links Page Pin 7 Mod, Alarm manuals, PHH, Newbie guide. and many more tech articles

Safari Tech Links

Color codes for these rigs are discussed here

need a replacement or new FOB (Remote for Alarm) try this link on the various options.

Should I get a Brush Gaurd for my rig?
On the brush gaurd. :frown: They provide limited protection only when hit from specific spots and actually multiply the damage when hit from any where but the middle.

Here is a small example of what a brush guard does

Here is a great example of what protection an ARB will give you. - However, Slee and others also make great bumpers that provide protection.

Why should I get Sliders? - If you plan on wheeling, Sliders are great protection
A picture says a 1000 words, or several thousand dollars of body damage:

Where can I get my CO2 Tank Filled - This link takes you to a listing of different sources to fill your tank. This includes a link to the National Welders supplies and gases assoc, member suggestions for Fire Extinguisher and Beverage suppliers are also candidates. Make sure you call before going over.

What happens to my speedometer with bigger than stock tires? Go to this link to see how tire sizes will impact your speedometer

What Tires are right for my rig? - This link provides a broad description of different tires that you can use on your 80.
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FAQ Chapter 3 Modifications

This section deals with the common and not so common modifications many forum members have completed.

Lifts - The Place to start

Lockers, Diffs and extending the Breathers

Adding a Fuel Tank to extend your range.

Electrical Modifications


Dual Batteries:


Stereo and Navigation:
  • Need to replace the aftermarket stereo? Here is some info. This includes both the 80 and LX450
  • jditom's write-up on the AVN6620 Nav Stereoinstall
  • Want to install a laptop in your truck. Here is a link to my install with links to other solutions
  • Want to swap the antenna for a Tacoma antenna?, use this thread for instructions Scroll down to xprmntls post for pictures and instructions

Interior Modifications

Modifications to Increase Cooling Capacity:

Bumpers Racks, Sliders, Spare Tire Clearance, AC Dryer Protection

Other Modifications - Unique and the not so common:

Best Mods for under $100


Below is the wiring Diagram for the CDL for making your own switch or repairing the interface
CDL wiring.JPG
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FAQ Chapter 4 Maintenance and Repairs

Electrical Issues

Axle and Drive Train:


Front Axle, Brakes and Alignment

Rear Axle :
Center Diff Lock & Lockers:
Drivetrain Maintenance and Issues:
Power Steering
Coolant System

Air Conditioning
Fluids (Oils, ATF, etc)

  • Forum Members advice on Oil, Filters and Gear Oil This thread is a compilation of our own oil experts cary and RavenTai posts and advice over the last 3 years.
  • Power Steering Flush - RavenTai Feb 2006 Often overlooked Fluid Baseline
  • Transmission Fluid Exchange (Snow Cruiser, July 2004) Part of base lining fluids in the vehicle
  • Fluid Recommendations per the Factory Service Manual
    • Engine oil
      • Dry fill 8.0 liters (8.5 US qts, 7.0 Imp. qts)
      • Drain and refill w/ Oil filter change 7.4 liters (7.8 US qts, 6.5 Imp. qts)
      • w/o Oil filter change 6.9 liters (7.3 US qts, 6.1 Imp qts)
      • API grade SH, Energy-Conserving II multigrade
      • engine oil or ILSAC multigrade engine oil and
      • recommended viscosity oil, with SAE 5W-30 being preferred engine oil
    • Differential oil
      • Front w/o Dfferential lock 2.80 liters (2.9 US qts, 2.5 lmp. qts) Transfer Case takes the same fluid type as the Differential
      • w/ Dfferential lock 2.65 liters (2.8 US qts, 2.3 lmp. qts)
      • Rear 3.25 liters (3.4 US qts, 2.9 lmp. qts)
      • Hypoid gear oil API GL-5
      • Above -18°C (0°F) SAE 90
      • Below -18°C (0°F) SAE 80W-90 or 80W
    • Transfer Case
      • 1.9 liters (2.0 US qts, 1.7 lmp. qts)
    • Transmission
      • 11.0 liters (11.6 US qts, 9.7 lmp. qts) , ATF DEXRON®II
    • Engine coolant:
      • w/ Front heater 12.5 liters (13.2 US qts, 11.1 lmp. qts)
      • w/ Front heater and rear heaters 13.4 liters (14.2 US qts, 11.8 lmp. qts)
      • Ethylene-glycol base
Fuel & Emissions System
General Maintenance Items
Misc Repairs
Interior & Exterior
Troubleshooting Information and Manuals
  • Technical Service Bulletins (not complete list)
  • Want to be able to download the Factory Service Manual, Here are updated instructions on how to do itWant to know what the engine codes are, here are some links
  • Get an Engine Light or have a CEL Code? look here for a listing of the codes (Maybe for only 96-97 OBDII). Note: You can get codes pulled free at lots of Autoparts stores.
  • If you have a 96 or newer vehicle you have an OBDII diagnostic port. You can eitehr buy a code reader or got to one of the many autoparts stores that will pull the code for you. The code will then tell you what the computer has logged as a fault. The nice thing about OBDII, is the code reader will work on ALL vehicles made 1996 and up.
  • If you have a 91-95 Land Cruiser, you can still pull the code with the paperclip method:

    Go to this link for a discussion on it

    1. With the key OFF, jump the E1 and TE1 terminals in the underhood diagnostics box with a paperclip.
    2. Turn the key to the ON position, do NOT start the engine.
    3. Count how many times the CEL blinks, I.E. code 25 would be two flashes, a pause, then five flashes, repeat. If there is more than one code, there will be a longer pause between codes.
    4. To clear the codes, remove the EFI fuse for 15 minutes, then replace it.
    In addition, you can pull the TCM code. A TCM code is where your o/d light is flashing and pertains directly to the transmission only
    Originally Posted by semlin
    To identify the code
    1. get a metal paperclip or jumper wires
    2. switch the o/d button on
    2. go to the DTC output box on the fireall of the engine (small black plastic box with a pop up lid which may be labelled "DLC1". lift the lid. You should see two small grids of 3x3 contacts and the inside of the lid should have a label code. identify the E1 and TE1 contacts.
    3. turn ignition on
    4. go back to the DLC box and insert one end of the paper clip in the E1 hole and one end in the TE1 hole. BE CAREFUL AND DO NOT GUESS ON THIS. If you don't have ther label code post up in the forum
    5. go back inside and watch the o/d light flash pattern.
    if it blinks continually in 2 second intervals you no longer have a problem so just pull the 10 amp dome fuse to clear the code
    6. otherwise count the flashes to get a 2 digit code. the flash sequences are sapareted by a 1.5 second pause. If there are 2 codes there will be a 2.5 second pause between each fresh code.
    7. remove the paper clip. turn truck off.
    8. post your codes in the forum or look up in the FSM to decipher.

    Here is Landspeeders list of OBD I codes​
3FE (Some links to 60 section)
NOTE: Head Gasket and Transmission Threads are found in FAQ Chapter 6 4 Bannana Repairs

NEW - Need to baseline your vehicle for emissions after resetting the OBD II port. The below attachment can help you


  • TSB_EG003-02_(revised) 96-02 readiness monitor drive patterns.pdf
    138.2 KB · Views: 9,714
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FAQ Chaper 9 Engine Enhancements

So you want your truck to go faster? There are two standard methods; a Turbocharger and a Supercharger

TURBO FAQ - What is a Turbo Charger and how does it work

SUPERCHARGER FAQ(in development)

Installation Links and Topics:

George's Super Charger Install Instructions

Dual Pod install - To install gauges to go with the supercharger - boydmick Nov 2006

blarsens cool supercharger intercooler

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Week Start Week end ROTW
A 5/9/2005 5/15/2005 lx450landcruiser
B 5/16/2005 5/22/2005 Gumby
C 5/23/2005 5/29/2005 cc93cruiser
D 5/30/2005 6/5/2005 T Y L E R
E 6/6/2005 6/12/2005 cruiserdan
F 6/13/2005 6/19/2005 Hltoppr
G 6/20/2005 6/26/2005 airlaird
H 6/27/2005 7/3/2005 Aussie Cruiser
I 7/4/2005 7/10/2005 Biff
J 7/11/2005 7/17/2005 NMostofi
K 7/18/2005 7/24/2005 Fochdog
L 7/25/2005 7/31/2005 Landtoy80
M 8/1/2005 8/7/2005 concretejungle
N 8/8/2005 8/14/2005 sjcruiser
O 8/15/2005 8/21/2005 Beowulf
P 8/22/2005 8/28/2005 Tucker74
Q 8/29/2005 9/4/2005 TX_TLC
R 9/5/2005 9/11/2005 White Shark
S 9/12/2005 9/18/2005 MaddBaggins
T 9/19/2005 9/25/2005 turbocruiser
U 9/26/2005 10/2/2005 Romer
V 10/3/2005 10/9/2005 clownmidget
W 10/10/2005 10/16/2005 Texus
X 10/17/2005 10/23/2005 cruiseruser
Y 10/24/2005 10/30/2005 Scott_sFZJ80
Z 10/31/2005 11/6/2005 NorCalDoug
1 11/7/2005 11/13/2005 cc93cruiser
2 11/14/2005 11/20/2005 -uhuru-
3 11/21/2005 11/27/2005 MTNRAT
4 11/28/2005 12/4/2005 TiredIronGRB
5 12/5/2005 12/11/2005 neowulf
6 12/12/2005 12/18/2005 davegonz
7 12/19/2005 12/25/2005 dmc
8 12/26/2005 1/1/2006 rgsii
9 1/2/2006 1/8/2006 LR_RESQ
10 1/9/2006 1/15/2006 Cruiserhead05
11 1/16/2006 1/22/2006 PKP80
12 1/23/2006 1/29/2006 ManrigDude
13 1/30/2006 2/5/2006 blupaddler
14 2/6/2006 2/12/2006 Hayes
15 2/13/2006 2/19/2006 topeod yobbo
16 2/20/2006 2/26/2006 NorCalSam
17 2/27/2006 3/5/2006 Houston FZJ80
18 3/6/2006 3/12/2006 convert
19 3/13/2006 3/19/2006 markt
20 3/20/2006 3/26/2006 beno
21 3/27/2006 4/2/2006 FZJ80 FIREMAN
22 4/3/2006 4/9/2006 FirstToy
23 4/10/2006 4/16/2006 BRKLYN1
24 4/17/2006 4/23/2006 apcoleman
25 4/24/2006 4/30/2006 MaddBaggins (Part 2)
26 5/1/2006 5/7/2006 Darwood
27 5/8/2006 5/14/2006 jklubens
28 5/15/2006 5/21/2006 Josh83
29 5/22/2006 5/28/2006 clarkrw3
30 5/29/2006 6/4/2006 bull
31 6/5/2006 6/11/2006 z80
32 6/12/2006 6/18/2006 FZJFillmore
33 6/19/2006 6/25/2006 Dusty

Wave 3
01 6/26/2006 7/2/2006 racerdave
02 7/3/2006 7/9/2006 ginericfj80
04 7/17/2006 7/23/2006 Nay
06 7/31/06 08/06/06 Chotchy
08 08/15/06 08/22/06 Wild Yoates
09 08/22/06 08/29/06 desertdude
11 9/4/2006 9/10/2006 TCH2FLY
12 9/11/2006 9/17/2006 Semlin
14 10/9/2006 to 10/16/2006 Walking Eagle
16 10/16/2006 to 10/25/2006 FJBen
17 10/25/2006 to 11/5/2006 Romer
18 11/5/2006 to 11/12/2006 Land Schmoozer
19 11/12/2006 to 11/24/2006 xiero
20 11/24/2006 to 12/04/2006 DanKunz
21 12/18/06 tp 12/25/06 Alkaline747Trio
22 12/252006 to 01/01/2007 Bear80

Wave 4
1/1/07 to 1/8/07 BBM Rick
1/8/07 to 1/15/07 cc93cruiser
1/15/07 to 1/22/07 e_parise
1/22/07 to 1/29/07 Hayes
1/29/07 to 2/5/07 TiredIronGRB
2/5/07 to 2/12/07 95eighty
2/12/07 to 2/19/07 lx450landcruiser
2/26/07 - 3/4/07 bhaines
3/5/07- 3/11/07 80krazE
3/12/07 - 3/18/07 Texus
3/19/07 - 3/25/07 Slomo
3/26/07 - 4/1/07 Skillet
4/2/07- 4/8/07 Arya Ebrahimi
4/16/07 - 4/22/07 prossett
4/23/07 - 4/29/07 619TOY
4/30/07 - 5/6/07 Capocaccia
5/7/07 to 5/13/07 Box Rocket
5/14 to 5/20 nmostofi
5/21 to 5/27 CPJONES1231
5/28 to 6/3 Doc
6/4 to 6/10 LIVERUST
6/11 to 6/17 peepers
6/18 to 7/1 Land Speeder
7/2 to 7/8 Tin Star
7/9 to 7/15 Cruiser80
7/16 to 7/22 SOCALFJ
8/20 to 8/26 chitown40
8/27 to 9/2 TroutRunner
9/17 to 9/23 smittycrusher
9/24 to 9/30 Red Beard
10/1 to 10/7 j_rawks
10/8 to 10/14 MJADDICTION
10/24 to 11/1 ArmyFJ
11/19 to 11/25 JO MAOMA
11/26 to 12/2 wildsmith
12/10 to 12/16 lathamb
12/17 to 12/23 Moody

12/31 to 1/7 fjfar80
1/14 to 1/21 DMC and his Expedition Travel
2/3 to 2/11 4dmalamute
2/18 to 2/25 DarkCloud
2/25 to 3/3 Red Sox Cruiser
3/17 to 3/24 sseaman
3/24 to 3/31 slow91fj90

In 2009 we started up with the Rig of the Fortnight



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