1994 Lexus ES300 maintenance schedule

MAINTENANCE
157
Explanation of scheduled maintenance items
ENGINE COMPONENTS AND EMISSION CONTROL
SYSTEMS
Timing belt
(Applicable to Schedule A only.) When scheduled, replace the
belt and inspect the ignition timing. A qualified technician must
perform these operations.
Valve clearance
Adjust the valve clearances to factory specifications. A
qualified technician should perform this operation.
Drive belts
Inspect the drive belts for cracks, excessive wear or oiliness.
Replace belt if damaged. Check the auto tensioner operation.
Engine oil and oil filter
Change the engine oil and oil filter when scheduled. Use API
SG or SH, Energy-Conserving II multigrade engine oil or
ILSAC multigrade engine oil. For recommended viscosity, see
page 177. A qualified technician should perform this operation.Engine coolant
Drain and flush the cooling system when scheduled. Refill only
with an ethylene-glycol type coolant. A qualified technician
should perform this operation.
Exhaust pipes and mountings
Visually inspect the exhaust pipes, muffler and hangers for
cracks, deterioration, or damage. Start the engine and listen
carefully for any exhaust gas leakage. Tighten connections or
replace parts as necessary.
Air cleaner filter
Replace the air cleaner filter when scheduled. Do-it-yourself
instructions are given on page 179. If you mainly operate your
vehicle on dusty roads, additionally inspect and clean the air
cleaner filter when scheduled. Visually check for dirt or
damage. It may be cleaned with compressed air.
Fuel lines and connections
Visually inspect the lines, connections and tank band for
corrosion, damage, cracks, and loose or leaking connections.
Tighten connections or replace parts as necessary.
Fuel tank cap gasket
Make sure the new gasket is correctly installed.

MAINTENANCE
158Spark plugs
Install new plugs of the same type as originally equipped. A
qualified technician should perform this operation.
Charcoal canister
Inspect for internal damage or clogging. Clean with
compressed air or replace if necessary. A qualified technician
should perform this operation.
CHASSIS AND BODY
Brake linings and drums
Check for scoring, burning, broken parts, and excessive wear.
A qualified technician should perform this operation.
Brake pads and discs
Check the pads for excessive wear and the discs for runout
and wear. Also check for leaking fluid. A qualified technician
should perform this operation.
Brake fluid
Check for correct levels of the brake fluid. If the level is low, add
FMVSS No. 116 DOT3 or SAE J1703 brake fluid to the brake
reservoir. Change the brake fluid as scheduled. A qualified
technician should perform these operations.Brake line pipes and hoses
Visually check for proper installation. Check for chafing,
cracks, deterioration, and any evidence of leaking. Replace
any deteriorated or damaged parts immediately. A qualified
technician should do these operations.
Steering linkage
With the vehicle stopped, check for excessive freeplay in the
steering wheel. Check the linkage for bends or damage. Check
the dust boots for deterioration, cracks, or damage. Replace
any damaged parts.
Steering gear box
Inspect the steering gear box for signs of leakage. If you
discover any leakage, have it repaired by a qualified technician
immediately.
Drive shaft boots
Inspect the drive shaft boots for clamp looseness, grease
leakage or damage. Replace any deteriorated or damaged
parts immediately. A qualified technician should perform these
operations.
Ball joints and dust covers
Check the suspension and steering linkage ball joints for
looseness or damage. Check all dust covers for deterioration
or damage. A qualified technician should perform these
operations.

MAINTENANCE
159 Automatic transaxle
Inspect each component for signs of leakage. If you discover
any leakage, have it repaired by a qualified technician
immediately. Under severe driving conditions, change the fluid
and oil when scheduled.
SRS airbags
This should be periodically inspected by a qualified technician.
For details, see the maintenance schedule.
Bolts and nuts on chassis and body
Where necessary, retighten to specified torque.
Body inspection (paint, corrosion)
Visually check for corrosion, scratches and other damage.
Check body outer panels, underneath the vehicle, inner panels
of the hood and doors, etc. Apply touch-up paint to any chips
or scratches, or have them repaired by a qualified technician.
ROAD TEST
While driving the vehicle, check the proper operation of engine,
transmission, brakes and steering, and check for abnormal
noise or vibration from any part of the vehicle.