engine TOYOTA TUNDRA 2001 Repair Manual

'01 TUNDRA_U (L/O 0008)
2362001 TUNDRA (OM 34416U)

Engine continually runs hot; oil pres-
sure gauge stays low
If you notice any of these clues, take your
vehicle to your Toyota dealer as soon as
possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the ve-
hicle unchecked. It could result in se-
rious vehicle damage and possibly
personal injury.
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'01 TUNDRA_U (L/O 0008)
2372001 TUNDRA (OM 34416U)
DO±IT±YOURSELF MAINTENANCE
Introduction
Engine compartment overview 238
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Fuse locations 240
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Do±it±yourself service precautions 241
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Parts and tools 242
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SECTION 7± 1
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'01 TUNDRA_U (L/O 0008)
2382001 TUNDRA (OM 34416U)
1. Engine oil filler cap
2. Brake fluid reservoir
3. Fuse blocks
4. Battery
5. Engine coolant reservoir
6. Engine oil level dipstick
7. Power steering fluid reservoir
8. Windshield washer fluid tank
Engine compartment overview

5VZ±FE engine
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'01 TUNDRA_U (L/O 0008)
2392001 TUNDRA (OM 34416U)
1. Power steering fluid reservoir
2. Engine oil filler cap
3. Brake fluid reservoir
4. Fuse blocks
5. Battery
6. Engine coolant reservoir
7. Engine oil level dipstick
8. Windshield washer fluid tank


2UZ±FE engine
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'01 TUNDRA_U (L/O 0008)
2412001 TUNDRA (OM 34416U)
If you perform maintenance by yourself,
be sure to follow the correct procedure
given in this section.
You should be aware that improper or in-
complete servicing may result in operating
problems.
Performing do±it±yourself maintenance
during the warranty period may affect your
warranty coverage. Read the separate
Toyota Warranty statement for details and
suggestions.
This section gives instructions only for
those items that are relatively easy for an
owner to perform. As explained in Section
6, there are still a number of items that
must be done by a qualified technician
with special tools.
For information on tools and parts for do±
it±yourself maintenance, see ªParts and
toolsº.
Utmost care should be taken when work-
ing on your vehicle to prevent accidental
injury. Here are a few precautions that
you should be especially careful to ob-
serve:CAUTION
When the engine is running, keep
hands, clothing, and tools away
from the moving fan and engine
drive belts. (Removing rings,
watches, and ties is advisable.)
Right after driving, the engine
compartmentÐthe engine, radiator,
exhaust manifold, power steering
fluid reservoir and spark plug
boots, etc.Ðwill be hot. So be care-
ful not to touch them. Oil, fluids
and spark plugs may also be hot.
If the engine is hot, do not remove
the radiator cap or loosen the drain
plugs to prevent burning yourself.
Do not smoke, cause sparks or al-
low open flames around fuel or the
battery. Their fumes are flammable.
Be extremely cautious when work-
ing on the battery. It contains poi-
sonous and corrosive sulfuric acid.
Do not get under your vehicle with
just the body jack supporting it. Al-
ways use automotive jack stands or
other solid supports.
Use eye protection whenever you
work on or under your vehicle
where you may be exposed to flying
or falling material, fluid spray, etc.
Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as in-
flammation or skin cancer, so care
should be taken to avoid prolonged
and repeated contact with it. To re-
move used engine oil from your
skin, wash thoroughly with soap
and water.
Do not leave used oil within the
reach of children.
Dispose of used oil and filter only
in a safe and acceptable manner.
Do not dispose of used oil and fil-
ter in household trash, in sewers or
onto the ground. Call your dealer or
a service station for information
concerning recycling or disposal.
Do±it±yourself service
precautions
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'01 TUNDRA_U (L/O 0008)
2422001 TUNDRA (OM 34416U)
NOTICE
Remember that battery and ignition
cables carry high currents or volt-ages. Be careful of accidentallycausing a short circuit.
Add only demineralized or distilledwater to fill the radiator. And if youspill some of the coolant, be sure
to wash it off with water to preventit from damaging the parts or paint.
Do not allow dirt or anything elseto fall through the spark plug holes.
Do not pry the outer electrode of a
spark plug against the center elec-trode.
Use only spark plugs of the speci-fied type. Using other types willcause engine damage, loss of per-
formance or radio noise.
Do not overfill automatic transmis-sion fluid, or the transmissioncould be damaged.
Do not drive with the air cleaner
filter removed, or excessive enginewear could result. Also backfiringcould cause a fire in the engine
compartment.
Be careful not to scratch the glasssurface with the wiper frame.
When closing the engine hood,check to see that you have not for-
gotten any tools, rags, etc.
Parts and tools
Here is a list of parts and tools you will
need on performing do±it±yourself mainte-
nance. Remember all Toyota parts are de-
signed in metric sizes, so your tools must
be metric.
Checking the engine oil level
Parts (if level is low):
Engine oil API grade SJ,
ªEnergy±Conservingº or ILSAC
multigrade having viscosity proper for
your climate
Tools:
Rag or paper towel
Funnel (only for adding oil)
Checking the engine coolant level
Parts (if level is low):
ªTOYOTA Long Life Coolantº or equiva-
lent
See Section 7±2 for details about cool-
ant type selection.
Demineralized or distilled water
Tools:
Funnel (only for adding coolant)
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'01 TUNDRA_U (L/O 0008)
2452001 TUNDRA (OM 34416U)
DO±IT±YOURSELF MAINTENANCE
Engine and Chassis
Checking the engine oil level 246
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Checking the engine coolant level 247
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Checking brake fluid 248
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Checking power steering fluid 249
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Checking tire pressure 250
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Checking and replacing tires 251
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Rotating tires 252
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Installing snow tires and chains 253
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Replacing wheels 254
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Aluminum wheel precautions 255
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SECTION 7± 2
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'01 TUNDRA_U (L/O 0008)
2462001 TUNDRA (OM 34416U)
Checking the engine oil level
Low level Full level
Add oil O.K. Too full
With the engine at operating tempera-
ture and turned off, check the oil level
on the dipstick. 1. To get a true reading, the vehicle should be on a level spot. After turning
off the engine, wait a few minutes for
the oil to drain back into the bottom of
the engine.
2. Pull out the dipstick, and wipe it clean with a rag.
3. Reinsert the dipstickÐpush it in as far as it will go, or the reading will not be
correct.
4. Pull the dipstick out and look at the oil level on the end.
CAUTION
Be careful not to touch the hot ex-
haust manifold.
If the oil level is below or only slightly
above the low level, add engine oil of
the same type as already in the engine.
Remove the oil filler cap and add engine
oil in small quantities at a time, checking
the dipstick.
The approximate quantity of oil needed to
fill between the low level and the full level
on the dipstick is indicated below for ref-
erence.
When the level reaches within the correct
range, install the f iller cap hand±tight.
Oil quantity, L (qt., lmp. qt.): 5VZ±FE engine 1.2 (1.3, 1.1)
2UZ±FE engine 1.5 (1.6, 1.3)
NOTICE
Avoid overfilling, or the engine
could be damaged.
Check the oil level on the dipstickonce again after adding the oil.
Engine oil selection
Use API grade SJ, ªEnergy±Conservingº
or ILSAC multigrade engine oil.
Recommended viscosity (SAE):
5W-30 Preferred
Temperature range anticipated before
next oil change
SAE 5W±30 is the best choice for your
vehicle, for good fuel economy, and
good starting in cold weather.
If you use SAE 10W±30 engine oil in
extremely low temperatures, the engine
may become difficult to start, so SAE
5W±30 engine oil is recommended.
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'01 TUNDRA_U (L/O 0008)
2472001 TUNDRA (OM 34416U)
API service symbol
ILSAC certification mark
Oil identification marks
Either or both API registered marks are
added to some oil containers to help
you select the oil you should use.
The API Service Symbol is located any-
where on the outside of the container.
The top portion of the label shows the oil
quality by API (American Petroleum Insti-
tute) designations such as SJ. The center
portion of the label shows the SAE viscos-
ity grade such as SAE 5W±30. ªEnergy±
Conservingº shown in the lower portion,
indicates that the oil has fuel±saving ca-
pabilities.
The ILSAC (International Lubricant Stan-
dardization and Approval Committee) Certi-
fication Mark is displayed on the front of
the container. Look at the see±through coolant reser-
voir when the engine is cold. The cool-
ant level is satisfactory if it is between
the ªFº and ªLº lines on the reservoir.
If the level is low, add ethylene±glycol
type coolant for a proper corrosion
protection of aluminum components.
The coolant level in the reservoir will vary
with engine temperature. However, if the
level is on or below the ªLº line, add
coolant. Bring the level up to the ªFº line.
Always use ethylene±glycol type coolant
for a proper corrosion protection of alumi-
num components. See information in the
next column.
If the coolant level drops within a short
time after replenishing, there may be a
leak in the system. Visually check the
radiator, hoses, radiator cap and drain
cock and water pump.
If you can find no leak, have your Toyota
dealer test the cap pressure and check
for leaks in the cooling system.
CAUTION
To prevent burning yourself, do not
remove the radiator cap when the en-
gine is hot.
Checking the engine coolant
level
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'01 TUNDRA_U (L/O 0008)
2482001 TUNDRA (OM 34416U)
Coolant type selection
Use of improper coolants may damage
your engine cooling system. Your coolant
must contain ethylene±glycol type coolant
for a proper corrosion protection of your
engine that contains aluminum
components. Use ªTOYOTA Long Life
Coolantº or equivalent.
In addition to preventing freezing and
subsequent damage to the engine, this
type of coolant will also prevent corrosion.
Further supplemental inhibitors or additives
are neither needed nor recommended.
Read the coolant container for information
on freeze protection. Follow the manufac-
turer's directions for how much to mix
with plain water (preferably demineralized
water or distilled water). The total c apacity
of the cooling system is given in Section
8.
We recommend to use 50% solution for
your Toyota, to provide protection down to
about ±35 C (±31 F). When it is extreme-
ly cold, to provide protection down to
about ±50 C (±58 F), 60% solution is rec-
ommended. Do not use more than 70%
solution for better coolant performance.NOTICE
Do not use alcohol type antifreeze or plain water alone.
Checking brake fluid
To check the fluid level, simply look at
the see±through reservoir. The level
should be between the ªMAXº and
ªMINº lines on the reservoir.
It is normal for the brake fluid level to go
down slightly as the brake pads wear. So
be sure to keep the reservoir filled.
If the reservoir needs frequent ref illing, it
may indicate a serious mechanical prob-
lem.
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