Toyota 4Runner manuals

Toyota 4Runner: Engine compartment


1. Washer fluid tank 2. Power steering fluid reservoir 3. Engine oil level dipstick 4. Engine coolant reservoir 5. Engine oil filler cap 6. Brake fluid reservoir 7. Fuse box
8. Battery
9. Condenser 10. Radiator

Engine compartment cover

Removing the engine compartment cover


Installing the clips


NOTICE

After installing an engine compartment cover

Make sure that the cover is securely installed in its original position.

Engine oil

With the engine at operating temperature and turned off, check the oil level on the dipstick.

Checking the engine oil

Park the vehicle on level
ground. After warming up the engine and turning it off, wait more than 5 minutes for the oil to drain back into the bottom of the engine.

Holding a rag under the end,
pull the dipstick out.


Wipe the dipstick clean.


Reinsert the dipstick fully.


Holding a rag under the end,
pull the dipstick out and check the oil level.

Wipe the dipstick and reinsert
it fully.


1. Low
2. Full

Adding engine oil


If the oil level is below or near the low level mark, add engine oil of the same type as that already in the engine.

Make sure to check the oil type and prepare the items needed before adding oil.


Remove the oil filler cap by
turning it counterclockwise.

Add engine oil slowly, checking
the dipstick.

Install the oil filler cap by
turning it clockwise.

Engine oil consumption

A certain amount of engine oil will be consumed while driving. In the following situations, oil consumption may increase, and engine oil may need to be refilled in between oil maintenance intervals.

• When the engine is new, for example directly after purchasing the vehicle or after replacing the engine • If low quality oil or oil of an inappropriate viscosity is used • When driving at high engine speeds or with a heavy load, when towing, or when driving while accelerating or decelerating frequently • When leaving the engine idling for a long time, or when driving frequently through heavy traffic

CAUTION

Used engine oil

• Used engine oil contains potentially harmful contaminants which may cause skin disorders such as inflammation and skin cancer, so care should be taken to avoid prolonged and repeated contact. To remove used engine oil from your skin, wash thoroughly with soap and water.

• Dispose of used oil and filters only in a safe and acceptable manner. Do not dispose of used oil and filters in household trash, in sewers or onto the ground. Call your Toyota dealer, service station or auto parts store for information concerning recycling or disposal.

• Do not leave used engine oil within the reach of children.

NOTICE

To prevent serious engine damage

Check the oil level on a regular basis.

When replacing the engine oil

• Be careful not to spill engine oil on the vehicle components.

• Avoid overfilling, or the engine could be damaged.

• Check the oil level on the dipstick every time you refill the vehicle.


• Be sure the engine oil filler cap is properly tightened.

Engine coolant

The coolant level is satisfactory if it is between the “F” and “L” lines on the reservoir when the engine is cold.


1. Reservoir cap
2. “F” line
3. “L” line

If the level is on or below the “L” line, add coolant up to the “F” line.

Coolant selection

Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic acid technology.

U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Minimum temperature: -31°F [-35°C])

Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44°F [-42°C])

For more details about engine coolant, contact your Toyota dealer.

If the coolant level drops within a short time of replenishing

Visually check the radiator, hoses, engine coolant reservoir caps, drain cock and water pump.

If you cannot find a leak, have your Toyota dealer test the cap and check for leaks in the cooling system.

CAUTION

When the engine is hot

Do not remove the engine coolant reservoir cap.

The cooling system may be under pressure and may spray hot coolant if the cap is removed, causing serious injuries, such as burns.

NOTICE

When adding coolant

Coolant is neither plain water nor straight antifreeze. The correct mixture of water and antifreeze must be used to provide proper lubrication, corrosion protection and cooling. Be sure to read the antifreeze or coolant label.

If you spill coolant

Be sure to wash it off with water to prevent it from damaging parts or paint.

Radiator and condenser

Check the radiator and condenser and clear away any foreign objects.

If either of the above parts is extremely dirty or you are not sure of their condition, have your vehicle inspected by your Toyota dealer.

CAUTION

When the engine is hot

Do not touch the radiator or condenser as they may be hot and cause serious injuries, such as burns.

Brake fluid

Checking fluid level


The brake fluid level should be between the “MAX” and “MIN” lines on the tank.

1. “MAX” line
2. “MIN” line

 Adding fluid

Make sure to check the fluid type and prepare the necessary item.


Refilling brake fluid

Vehicles without a smart key
system

Turn the engine switch off.

Vehicles with a smart key system

Turn the “ENGINE START STOP” switch off.

Depress the brake pedal more than
40 times.

Remove the reservoir cap by
hand. Add brake fluid up to the “MAX” line.

If you do not follow the procedure above, the reservoir may overflow.

Brake fluid can absorb moisture from the air

Excess moisture in the brake fluid can cause a dangerous loss of braking efficiency. Use only newly opened brake fluid.

CAUTION

When filling the reservoir

Take care as brake fluid can harm your hands and eyes and damage painted surfaces.

If fluid gets on your hands or in your eyes, flush the affected area with clean water immediately.

If you still experience discomfort, see a doctor.

NOTICE

If the fluid level is low or high

It is normal for the brake fluid level to go down slightly as the brake pads wear out or when the fluid level in the accumulator is high.

If the reservoir needs frequent refilling, there may be a serious problem.

Power steering fluid

Fluid level

The fluid level should be within the appropriate range.


1. Full (when cold)
2. Add fluid (when cold) 3. Full (when hot)
4. Add fluid (when hot)

Hot: Vehicle has been driven around 50 mph (80 km/h) for 20 minutes, or slightly longer in frigid temperatures. (Fluid temperature, 140°F - 175°F [60°C - 80°C]).

Cold: Engine has not been run for about 5 hours. (Room temperature, 50°F - 85°F [10°C - 30°C]).

Checking the fluid level

Make sure to check the fluid type and prepare the necessary items.


Clean all dirt off the
reservoir.

Remove the cap by turning it
counterclockwise.

Wipe the dipstick clean.


Reinstall the cap and remove it
again.

Check the fluid level.


CAUTION

When checking the reservoir

Take care as the reservoir may be hot.

NOTICE

When adding fluid

Avoid overfilling, or the power steering may be damaged.

After replacing the reservoir cap

Check the steering box case, vane pump and hose connections for leaks or damage.

Battery

Check the battery as follows:

Make sure that the battery terminals are not corroded and that there are no loose connections, cracks, or loose clamps.


1. Terminals
2. Hold-down clamp

Before recharging

When recharging, the battery produces hydrogen gas which is flammable and explosive. Therefore, observe the following before recharging:

• If recharging with the battery installed on the vehicle, be sure to disconnect the ground cable.

• Make sure the power switch on the charger is off when connecting and disconnecting the charger cables to the battery.

After recharging/reconnecting the battery (vehicles with smart key system)

• Unlocking the doors using the smart key system may not be possible immediately after reconnecting the battery. If this happens, use the wireless remote control or the mechanical key to lock/unlock the doors.

• Start the engine with the “ENGINE START STOP” switch in ACCESSORY mode. The engine may not start with the “ENGINE START STOP” switch turned OFF. However, the engine will operate normally from the second attempt.

• The “ENGINE START STOP” switch mode is recorded by the vehicle. If the battery is reconnected, the vehicle will return the “ENGINE START STOP” switch mode to the status it was in before the battery was disconnected.

Make sure to turn off the engine before disconnect the battery.

Take extra care when connecting the battery if the “ENGINE START STOP” switch mode prior to discharge is unknown.

If the system will not start even after multiple attempts, contact your Toyota dealer.

CAUTION

Chemicals in the battery

Batteries contain poisonous and corrosive sulfuric acid and may produce hydrogen gas which is flammable and explosive. To reduce the risk of death or serious injury, take the following precautions while working on or near the battery:


• Do not cause sparks by touching the battery terminals with tools.

• Do not smoke or light a match near the battery.

• Avoid contact with eyes, skin and clothes.

• Never inhale or swallow electrolyte.

• Wear protective safety glasses when working near the battery.

• Keep children away from the battery.

CAUTION

Where to safely charge the battery

Always charge the battery in an open area. Do not charge the battery in a garage or closed room where there is insufficient ventilation.

How to recharge the battery

Only perform a slow charge (5 A or less). The battery may explode if charged at a quicker rate.

Emergency measures regarding electrolyte

• If electrolyte gets in your eyes

Flush your eyes with clean water for at least 15 minutes and get immediate medical attention. If possible, continue to apply water with a sponge or cloth while traveling to the nearest medical facility.


• If electrolyte gets on your skin

Wash the affected area thoroughly. If you feel pain or burning, get medical attention immediately.

• If electrolyte gets on your clothes

It can soak through clothing on to your skin. Immediately take off the clothing and follow the procedure above if necessary.


• If you accidentally swallow electrolyte

Drink a large quantity of water or milk. Get emergency medical attention immediately.

NOTICE

When recharging the battery

Never recharge the battery while the engine is running. Also, be sure all accessories are turned off.

Washer fluid

Type A


If any washer does not work or the low washer fluid warning light comes on, the washer tank may be empty. Add washer fluid.

Type B


If the washer fluid level is at “LOW”, add washer fluid.

Using the gauge (Type B only)


The washer fluid level can be checked by observing the position of the level on the liquid-covered holes in the gauge.

If the level falls below the second hole from the bottom (the “LOW” position), refill the washer fluid.

CAUTION

When adding washer fluid

Do not add washer fluid when the engine is hot or running as washer fluid contains alcohol and may catch fire if spilled on the engine etc.

NOTICE

Do not use any fluid other than washer fluid

Do not use soapy water or engine antifreeze instead of washer fluid.

Doing so may cause streaking on the vehicle’s painted surfaces.

Diluting washer fluid

Dilute washer fluid with water as necessary.

Refer to the freezing temperatures listed on the label of the washer fluid bottle.

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