1997 TOYOTA 4RUNNER air conditioning

157

Because stopping distance may be in-
creased, vehicle-to-vehicle distance
should be increased when towing a
trailer. For each 16 km/h (10 mph) of speed, allow at least one vehicle and
trailer length between you and the ve-
hicle ahead. Avoid sudden braking as you may skid, resulting in jackknifing
and loss of control. This is especially
true on wet or slippery surfaces.
Avoid jerky starts or sudden accelera-tion. If your vehicle has manual trans-
mission, prevent excessive clutch slip-
page by keeping engine rpm low and
not racing the engine. Always start out
in first gear.
Avoid jerky steering and sharp turns.
The trailer could hit your vehicle in a
tight turn. Slow down before making a
turn to avoid the necessity of sudden braking.
Remember that when making a turn, the trailer wheels will be closer than the vehicle wheels to the inside of the
turn. Therefore, compensate for this
by making a larger than normal turning
radius with your vehicle.
Crosswinds and rough roads will ad-
versely affect handling of your vehicle
and trailer, causing sway. Pay atten-
tion to the rear from time to time to pre-
pare yourself for being passed by largetrucks or buses, which may cause your
vehicle and trailer to sway. If swaying
happens, firmly grip the steering wheel
and reduce speed immediately but
gradually. Never increase speed.
Steer straight ahead. If you make no
extreme correction with the steering or
brakes, the vehicle and trailer will sta-bilize.
Be careful when passing other ve-hicles. Passing requires considerable
distance. After passing a vehicle, do
not forget the length of your trailer and
be sure you have plenty of room be-
fore changing lanes.
In order to maintain engine braking ef-
ficiency, do not use fifth gear (manual
transmission) or overdrive (automatic transmission).
Because of the added load of the trail-
er, your vehicle's engine may overheat
on hot days (at temperatures over 30 5C [85 5F]) when going up a long or
steep grade with a trailer. If the engine
coolant temperature gauge indicates
overheating, immediately turn off the
air conditioning (if in use), pull off the
road and stop in a safe spot. Refer to
If your vehicle overheatsº in Part 4 of this manual.
Always place wheel blocks under both
the vehicle and trailer wheels whenparking. Apply the parking brake firm-
ly. Put the transmission in Pº (auto-
matic) or in first or reverse (manual).
Avoid parking on a slope with a trailer,but if it cannot be avoided, do so only after performing the following:
1. Apply the brakes and hold.
2. Have someone place wheel blocks un-
der both the vehicle and trailer wheels.
3. When the wheel blocks are in place, release your brakes slowly until the blocks absorb the load.
4. Apply the parking brake firmly.
5. Shift into first or reverse (manual) or Pº (automatic) and turn off the engine.

165
If your engine coolant temperature
gauge indicates overheating, if you
experience a loss of power, or if you
hear a
loud knocking or pinging noise,
the engine has probably overheated.
You should follow this procedure 0
1. Pull safely off the road, stop the ve- hicle and turn on your emergency
flashers. Put the transmission in Pº
(automatic) or neutral (manual) and
apply the parking brake. Turn off the
air conditioning if it is being used.
2. If coolant or steam is boiling out of the radiator or reservoir, stop the engine.
Wait until the steam subsides before
opening the hood. If there is no coolant
boiling over or steam, leave the engine running.
To help avoid personal injury, keep
the hood closed until there is no steam. Escaping steam or coolant is
a sign of very high pressure. CAUTION
! 3. Visually check to see if the engine
drive belt (fan belt) is broken or loose.
Look for obvious coolant leaks from
the radiator, hoses, and under the ve-
hicle. However, note that water drain-ing from the air conditioning is normal if it has been used.
When the engine is running, keep
hands and clothing away from the
moving fan and engine drive belts. CAUTION
!
4. If the engine drive belt is broken of the coolant is leaking, stop the engine im-
mediately. Call a Toyota dealer for as- sistance.
5. If the engine drive belt is O.K. and there are no obvious leaks, you may
help the engine cool down more quick-
ly by running it at about 1500 rpm for
a few minutes with the accelerator
pedal lightly depressed.
6. Check the coolant reservoir. If it is dry, add coolant to the reservoir while the
engine is running. Fill it about half full.
Do not attempt to remove the
radiator cap when the engine and
radiator are hot. Serious injury
could result from scalding hot fluid
and steam blown out underpressure. CAUTION
!
7. After the engine coolant temperature has cooled to normal, again check the
coolant level in the reservoir. If neces-
sary, bring it up to half full again. Seri-
ous coolant loss indicates a leak in the
system. You should have it checked as
soon as possible at your Toyota deal-
er.
If your vehicle overheats

182
Do not use solvent, thinner, gas-oline or window cleaner on the in-
terior.
NOTICE
Carpets
Use a good foam-type shampoo to
clean the carpets.
Begin by vacuuming thoroughly to re-
move as much dirt as possible. Several
types of foam cleaners are available; some are in aerosol cans and others are
powders or liquids which you mix with wa-
ter to produce a foam. To shampoo the
carpets, use a sponge or brush to apply the foam. Rub in overlapping circles.
Do not apply water ± the best results are obtained by keeping the carpet as dry as possible. Read the shampoo instructions
and follow them closely. Seat belts
The seat belts may be cleaned with
mild soap and water or with lukewarm
water.
Use a cloth or sponge. As you are clean-
ing, check the belts for excessive wear,
fraying, or cuts.
Do not use dye or bleach on the
beltsÐit may weaken them.
NOTICE
Windows
The windows may be cleaned with any
household window cleaner.
When cleaning the inside of the
windows, be careful not to scratch
or damage the heater wires on therear window.
NOTICE
Air conditioning control panel, car au-
dio, instrument panel, console panel,
and switches Use a soft damp cloth for cleaning.
Soak a clean soft cloth in water or luke-
warm water then lightly wipe off any dirt.
Do not use organic substances
(solvents, kerosene, alcohol, gas-
oline, etc.) or alkaline or acidic
solutions. These chemicals cancause discoloring, staining or
peeling of the surface.
If you use cleaners or polishingagents, make sure their ingredi-
ents do not include the sub-
stances mentioned above.
If you use a liquid car freshener, do not spill the liquid onto the ve-
hicle's interior surfaces. It maycontain the ingredients men-
tioned above. Immediately clean
any spill using the method men-tioned above.
NOTICE
Leather Interior
The leather upholstery may be cleaned
with neutral detergent for wool. Remove dirt using a soft cloth dampened
with 5 % Solution of neutral detergent for
wool. Then thoroughly wipe off all traces
of detergent with a clean damp cloth.

188Automatic transmission Parkº
mech-
anism
Check the lock release button of the se-
lector lever for proper and smooth opera-
tion. On a safe incline, check that your ve-
hicle is held securely with the selector lever in ºPº position and all brakes re- leased.
IN THE ENGINE COMPARTMENT Items listed below should be checked
from time to time , e.g. each time when
refueling.
Washer fluid
Make sure there is sufficient fluid in the
tank. See Chapter 7-3 for additional infor-
mation.
Engine coolant level Make sure the coolant level is between
the FULLº and LOWº lines on the see-
through reservoir when the engine is cold.
See Chapter 7-2 for additional informa-tion.
Battery electrolyte level Make sure the electrolyte level of all bat-
tery cells is between upper and lower level
lines on the case. Add only distilled water
when replenishing. See Chapter 7-3 for
additional information. Brake fluid level
Make sure the brake fluid level is correct. See Chapter 7-2 for additional informa- tion.
Engine oil level
Check the l
evel on the dipstick with the en-
gine turned off and the vehicle parked on
a level spot. See Chapter 7-2 for addition-
al information. Power steering fluid level Check the level through the reservoir. The
level should be in the HOTº or COLDº
range depending on the fluid t emperature.
See Chapter 7-2 for additional informa- tion.
Exhaust system
If you notice any change in the sound of
the exhaust or smell exhaust fumes, have the cause located and corrected immedi-
ately. (See engine exhaust cautions in
Part 2.) Be on the alert for changes in perfor-
mance, sounds, and visual tip-offs
that in-
dicate service is needed. Some important
clues are as follows: Engine missing, stumbling, or pinging
Appreciable loss of power
Strange engine noises
A leak under the vehicle (however, wa-
ter dripping from the air conditioning
after use is normal.)
Change in exhaust sound (This may
indicate a dangerous carbon monox-
ide leak. Drive with the windows open
and have the exhaust system checked
immediately.)
Flat-looking tire; excessive tire squeal
when cornering; uneven tire wear
Vehicle pulls to one side when drivingstraight on a level road
Strange noises related to suspensionmovement
Loss of brake effectiveness; spongy
feeling brake or clutch pedal; pedal al-
most touches floor; vehicle pulls to one
side when braking
Engine coolant temperature continual-
ly higher than normal
Does your vehicle need repairing?

+25 -15
218
Model:
3RZ-FE and 5VZ-FE
Type: 3RZ-FE engine4 cylinder in line, 4 cycle, gasoline
5VZ-FE engine 6 cylinder V type 4 cycle, gasoline
Bore and stroke, mm (in.):
3RZ-FE engine95.0 x 95.0 (3.74 x 3.74)
5VZ-FE engine
93.5 x 82.0 (3.68 x 3.23)
Displacement, cm 3
(cu. in.):
3RZ-FE engine
2694 (164.3)
5VZ-FE engine 3378 (206.1) Fuel type:
Unleaded gasoline, Research OctaneNumber 91 (Octane Rating 87) or higher
Fuel tank capacity, L (gal., Imp. gal.):
70 (18.5, 15.4) ENGINE
Valve clearance (engine cold), mm (in.)
3RZ-FE engine
Intake 0.15 '0.25 (0.006 '0.010)
Exhaust 0.25 '0.35 (0.010 '0.014)
5VZ-FE engine
Intake 0.13 '0.23 (0.006 '0.009)
Exhaust 0.27 '0.37 (0.011 '0.014)
Spark plug type:
3RZ-FE enginesNIPPONDENSO K16R-U
NGK BKR5EYA
5VZ-FE engine
NIPPONDENSO K16TR11
NGK BKR5EKB11
Spark plug gap, mm (in.): 3RZ-FE engine 0.8 (0.031)
5VZ-FE engine 1.1 (0.043)
Drive belt tension measured with Bor-
roughs drive belt tension gauge No.
BT-33-73F (used belt), lbf: 3RZ-FE engineGenerator belt 115 + 20
Air conditioning compressor belt 100 + 20
Power steering pump belt 100
Service specifications
Fuel
Engine

+20 -15219
5VZ-FE engine
Generator belt 100 + 20
Air conditioning compressor belt 100 + 20
Power steering
pump belt 100
ENGINE LUBRICATION Oil capacity (drain and refill), L (qt., Imp. qt.): 3RZ-FE engineWith filter 5.4 (5.7, 4.8)
Without filter 4.9 (5.0, 4.1)
5VZ-FE engine With filter 5.2 (5.5, 4.6)
Without filter 4.9 (5.2, 4.3) Oil grade:
API SH, Energy-Conserving IIº multi-
grade engine oil or ILSAC multigrade en-
gine oil is recommended. Recommended oil viscosity (SAE):
COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):
3RZ-FE engineWith rear heater 11.0 (11.6, 9.7)
Without rear heater 10.0 (10.6, 8.8)
5VZ-FE engine With rear heater
9.0 (9.5, 7.9)
Without rear heater
8.0 (8.5, 7.0) Coolant type: With ethylene-glycol antifreeze (Do not use alcohol type.)
BATTERY ÐMaintenance type battery
Specific gravity reading at 20
C (68 F):
1.280 Fully charged1.180 Half charged 1.080 Discharged
ÐNon-maintenance batteryOpen voltage* at 20 C (68 F):
12.7 V Fully charged12.3 V Half charged
11.9 V Discharged
*: Voltage that is checked 20 minutes af-
ter the key is removed with all the lights
turned off
Charging rates:
Non-maintenance battery 5 A max. Maintenance type battery
Quick charge 15 A max.
Slow charge 5 A max.
CLUTCH
Pedal freeplay, mm (in.): 5Ð15 (0.2Ð0.6)Fluid type:
SAE J1703 or FMVSS No. 116 DOT 3

222
Engine compartment (U.S.A.) Fuses (type A)
1. DEFOG 15 A: Back window defogger
2. STOP 10 A: Stop lights, high-
mounted stoplight
3. ALT-S 7.5 A: Charging system
4. OBD 7.5 A: On-board diagnosis sys-
tem
5. EFI 15 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection systemEngine compartment (Canada)
6. HORN 15 A: Horns
7. DOME 15 A: Interior lights, personal
lights, luggage compartment light
8. TAIL 10 A: Tail lights, parking lights, li-
cense plate lights
9. A.C. 10 A: Air conditioning control
system
10. RR HTR 10 A: Rear air conditioning
control system
11. HEAD (RH) 10 A: Right-hand head-
light
12. HEAD (LH) 10 A: Left-hand headlightInstrument panel
13. DRL 7.5 A: Daytime running light sys-
tem
14. HEAD (HI RH) 10 A: Right-hand
headlight (high beam)
15. HEAD (HI LH) 10 A: Left-hand head-
light (high beam)
16. HEAD 10 A: Right-hand headlight
(low beam)
17. HEAD 10 A: Left-hand headlight (low
beam)
18. ACC 15 A: Car audio system, power
antenna, clock, power rear view mirror
control
Fuses

223
19. ECU-B 7.5 A:
SRS airbag warning
light
20. 4WD 20 A: A.D.D. control system,
four-wheel drive control system, rear
differential lock system
21. TURN 10 A: Turn signals lights, emer-
gency flashers
22. GAUGE 10 A: Gauges and meters,
back window defogger, daytime run-
ning light system, air conditioning sys-
tem, electric moon roof
23. ECU-IG 10 A: Cruise control system,
anti-lock brake system, electronically
controlled automatic transmission
system, power antenna
24. WIPER 240 A: Windshield wipers and
washer, back window wiper
25. IGN 7.5 A: SRS airbag system, multi-
port fuel injection system / sequential
multiport fuel injection system, dis-
charge warning light Fuses (type B)
26. HEATER 50 A:
Air conditioning sys-
tem, A.C.º fuse
27. AM1 40 A: Starting system
28.AM2 30 A: Starting system, IGNº fuse
29. POWER 30 A: Power window, power
back window, electric moon roof
Fuses (type C)
30. ABS 60 A: Anti-lock brake system
31. ALT 100 A: Charging system