oil pressure TOYOTA CAMRY V20 1986 Service Information

PRECAUTIONS
1. Care must be taken to replace each part properly as it
could affect the performance of the brake system and re-
sult in a driving hazard. Replace the parts with parts of the
same part number or equivalent.
2. It is very important to keep parts and the area clean when
repairing the brake system.
Parking brake out of adjustment
Binding parking brake wire
Booster push rod out of adjustment
Tension or return spring faulty
Brake line restricted
Lining cracked or distorted
Pad cracked or distorted
Wheel cylinder or caliper piston sticking
Adjuster broken
Master cylinder faulty
Brake shoes distorted, linings worn or glazed
Brake pads distorted, worn or glazed
Drum or disc out of round
Tension or return spring faulty
Wheel cylinder faulty
Brake cylinder faulty
Piston frozen in brake cylinder
Brake pad stickingReplace brake shoes
Replace pads
Repair leak
Repair or replace master cylinder
Bleed brake system
Repair wheel cylinder
Repair cylinder
Repair brake cylinder
Repair or replace adjuster Air in brake system
Wheel cylinder faulty
Brake cylinder faulty
Piston seals worn or damaged
Rear brake automatic adjuster faulty
Adjust parking brake
Repair as necessary
Adjust push rod
Replace spring
Repair as necessary
Replace shoe
Replace pad
Repair as necessary
Replace pads
Replace drum or disc
Replace spring
Repair wheel cylinder
Repair cylinder
Repair cylinder
Replace padsInflate tires to proper pressure
Check for cause. Replace shoes
or pads
Replace brake shoes Linings worn
Brake pads worn
Leak in brake system
Master cylinder faulty
BR±18, 34
BR±18, 26
34
BR±26, 42
BR±26
BR±18, 34
BR±18, 34
BR±18, 34 Replace adjuster
Repair or replace master
cylinder
TROUBLESHOOTING
BR±7
BR±26
BR±18, 34
BR±18, 34
BR±26, 42
BR±18,34
BR±18, 26
34
Oil or grease on shoes or pads Tires improperly inflated
BR±18, 26
34
BR±26, 42
Low or spongy
pedalBR±26
BR±18, 34
BR±1 6
BR±26, 42 Possible cause
Brakes drag
Brakes pullRemedy Problem
Page
BR±8
BR±9BR±9
± BRAKE SYSTEMPrecautionsBR±2

PRECAUTIONS
1. Care must be taken to replace each part properly as it
could affect the performance of the brake system and re-
sult in a driving hazard. Replace the parts with parts of the
same part number or equivalent.
2. It is very important to keep parts and the area clean when
repairing the brake system.
Parking brake out of adjustment
Binding parking brake wire
Booster push rod out of adjustment
Tension or return spring faulty
Brake line restricted
Lining cracked or distorted
Pad cracked or distorted
Wheel cylinder or caliper piston sticking
Adjuster broken
Master cylinder faulty
Brake shoes distorted, linings worn or glazed
Brake pads distorted, worn or glazed
Drum or disc out of round
Tension or return spring faulty
Wheel cylinder faulty
Brake cylinder faulty
Piston frozen in brake cylinder
Brake pad stickingReplace brake shoes
Replace pads
Repair leak
Repair or replace master cylinder
Bleed brake system
Repair wheel cylinder
Repair cylinder
Repair brake cylinder
Repair or replace adjuster Air in brake system
Wheel cylinder faulty
Brake cylinder faulty
Piston seals worn or damaged
Rear brake automatic adjuster faulty
Adjust parking brake
Repair as necessary
Adjust push rod
Replace spring
Repair as necessary
Replace shoe
Replace pad
Repair as necessary
Replace pads
Replace drum or disc
Replace spring
Repair wheel cylinder
Repair cylinder
Repair cylinder
Replace padsInflate tires to proper pressure
Check for cause. Replace shoes
or pads
Replace brake shoes Linings worn
Brake pads worn
Leak in brake system
Master cylinder faulty
BR±18, 34
BR±18, 26
34
BR±26, 42
BR±26
BR±18, 34
BR±18, 34
BR±18, 34 Replace adjuster
Repair or replace master
cylinder
TROUBLESHOOTING
BR±7
BR±26
BR±18, 34
BR±18, 34
BR±26, 42
BR±18,34
BR±18, 26
34
Oil or grease on shoes or pads Tires improperly inflated
BR±18, 26
34
BR±26, 42
Low or spongy
pedalBR±26
BR±18, 34
BR±16
BR±26, 42 Possible cause
Brakes drag
Brakes pullRemedy Problem
Page
BR±8
BR±9BR±9
± BRAKE SYSTEMTroubleshootingBR±2

Clutch pedal freeplay excessive
Air in clutch lines
Clutch release cylinder faulty
Clutch master cylinder faulty
Clutch disc out of true, runout is excessive or
lining broken
Splines on input shaft or clutch disc dirty or
burred
Clutch pressure plate faulty
Clutch disc lining oily or worn out
Pressure plate faulty
Clutch diaphragm spring bent
Engine mounts looseClutch pedal freeplay insufficient
Clutch disc lining oily or worn out
Pressure plate faulty
Release fork binding
Inspect clutch disc
Replace clutch cover
Align clutch diaphragm spring
Repair as necessaryAdjust pedal freeplay
Bleed clutch system
Repair release cylinder
Repair master cylinder
Inspect clutch disc
Air in clutch lines
Clutch release cylinder faulty
Clutch master cylinder faultyAdjust pedal freeplay
inspect clutch disc
Replace clutch cover
inspect release fork
Bleed clutch system
Repair release cylinder
Repair master cylinder
Loose part inside housing
Release bearing worn or dirtyRepair as necessary
Replace clutch cover
TROUBLESHOOTING
Repair as necessary
Replace release bearing Hard to shift or will not
shiftCL±3
CL±4
CL±7
CL±5
CL±9
Clutch pedal spongyClutch grabs/
chattersCL±3
CL±9
CL±9
CL±9
CL±9
CL±9
CL±9
CL±4
CL±7
CL±5 Possible cause
Clutch noisy Clutch slipsProblem
RemedyPage
± CLUTCHTroubleshootingCL±2

The cooling system is composed of the water jacket (inside the cylinder block and cylinder head), radiator,
water pump, thermostat, electric fan, hoses and other components.
Coolant which is heated in the water jacket is pumped to the radiator, through which an electric fan blows air
to cool the coolant as it passes through. Coolant which has been cooled is then sent back to the engine by
the water pump, where it cools the engine.
The water jacket is a network of channels in the shell of the cylinder block and cylinder head through which
coolant passes. It is designed to provide adequate cooling of the cylinders and combustion chambers which
become heated during engine operation.
RADIATOR
The radiator performs the function of cooling the coolant which has passed through the water jacket and be-
come hot, and it is mounted in the front of the vehicle. The radiator consists of an upper tank and lower tank,
and a core which connects the two tanks. The upper tank contains the inlet for coolant from the water jacket
and the filler inlet. It also has a hose attached through which excess coolant or steam can flow. The lower
tank has an outlet and drain cock for the coolant. The core contains many tubes through which coolant flows
from the upper tank to the lower tank as well as cooling fins which radiate heat away from the coolant in the
tubes.
The air sucked through the radiator by the electric fan, as well as the wind generated by the vehicle's travel,
passes through the radiator, cooling the coolant. Models with automatic transmission include an automatic
transmission fluid cooler built into the lower tank of the radiator. A fan with an electric motor is mounted be-
hind the radiator to assist the flow of air through the radiator. The fan operates when the coolant tempera-
ture becomes high in order to prevent it from becoming too high.
RADIATOR CAP
The radiator cap is a pressure type cap which seals the radiator, resulting in pressurization of the radiator as
the coolant expands. The pressurization prevents the coolant from boiling even when the coolant tempera-
ture exceeds 100°C (212°F). A relief valve (pressurization valve) and a vacuum valve (negative pressure
valve) are built into the radiator cap. The relief valve opens and lets steam escape through the overflow pipe
when the pressure generated inside the cooling system exceeds the limit (coolant temperature: 110 ±
120°C, 230 ± 248°F, pressure; 0.3 ±1.0 kg/cm
2, 4.3 ±14.2 psi, 29.4 ± 98.1 kPa). The vacuum valve opens to
alleviate the vacuum which develops in the coolant system after the engine is stopped and the coolant tem-
perature drops.
The valves's opening allows the coolant in the reservoir tank to return to the cooling system.
RESERVOIR TANK
The reservoir tank is used to catch coolant which overflows the cooling system as a result of volumetric ex-
pansion when the coolant is heated. The coolant in the reservoir rank returns to the radiator when the cool-
ant temperature drops, thus keeping the radiator full at all times and avoiding needless coolant loss. Check
the reservoir tank level to find out if the coolant needs to be replenished.
WATER PUMP
The water pump is used for forced circulation of coolant through the cooling system. It is mounted on the
front of the cylinder block and driven by a timing belt.
THERMOSTAT
The thermostat has a wax type by±pass valve and is mounted in the water inlet housing. The thermostat in-
cludes a type of automatic valve operated by fluctuations in the coolant temperature. This valve closes when
the coolant temperature drops, preventing the circulation of coolant through the engine and thus permitting
the engine to warm up rapidly. The valve opens when the coolant temperature has risen, allowing the cir-
culation of coolant. Wax inside the thermostat expands when heated and contracts when cooled. Heating
the wax thus generates pressure which overpowers the force of the spring which keeps±the valve closed,
thus opening the valve. When the wax cools, its contraction causes the force of the spring to take effect
once more, closing the valve. The thermostat in this engine operates at a temperature of 82°C (180°F).
± COOLING SYSTEMDescriptionCO±3

3. (3S±FE)
REPLACE ENGINE COOLANT
(a) Remove the radiator cap.
CAUTION: To avoid the danger of being burned, do not re-
move it while the engine and radiator are still hot
as fluid and steam can be blown out under pressure.
(b) Drain the coolant from the .radiator and engine drain cocks.
(Engine drain cock at the right rear of engine block.)
(c) Close the drain cocks.
Torque (Engine drain cock):
130 kg±cm (9 ft±Ib, 13 N±m) HINT: If the engine tends to overheat, removal of the
thermostat will adversely effect cooling efficiency.
CHECK AND REPLACEMENT OF
ENGINE COOLANT
1. CHECK ENGINE COOLANT LEVEL AT RESERVE TANK
The coolant level should be between the ºLOWº and
ºFULLº lines.
If low, check for leaks and add coolant up to the ºFULLº
line.
Dirt, leaves or insects on radiator or condenser
Hoses, Water pump, thermostat housing, radiator,
heater, core, plugs or head gasket leakage
Thermostat faulty
Incorrect ignition timing
Electric cooling system faulty
Radiator hose plugged or rotted
Water pump faulty
Radiator plugged or cap faulty
Cylinder head or block cracked or water passage
clogged
2. CHECK ENGINE COOLANT QUALITY
There should not be any excessive deposits of rust or scales
around the radiator cap or radiator filler hole, and the cool-
ant should be free from oil.
If excessively dirty, replace the coolant.
Check thermostat
Reset tinning
Inspect electric cooling system
Replace hose
Replace water pump
Check radiator and cap
Repair as necessary
TROUBLESHOOTING
CO±12, 13
IG±17, 20
CO±20, 22 Clean radiator or condenser
Repair as necessary Engine overheats
Possible causeRemedy Problem
CO±6, 9 Page
± COOLING SYSTEM
TroubleshootingCO±4

3. (3S±FE)
REPLACE ENGINE COOLANT
(a) Remove the radiator cap.
CAUTION: To avoid the danger of being burned, do not re-
move it while the engine and radiator are still hot
as fluid and steam can be blown out under pressure.
(b) Drain the coolant from the .radiator and engine drain cocks.
(Engine drain cock at the right rear of engine block.)
(c) Close the drain cocks.
Torque (Engine drain cock):
130 kg±cm (9 ft±Ib, 13 N±m) HINT: If the engine tends to overheat, removal of the
thermostat will adversely effect cooling efficiency.
CHECK AND REPLACEMENT OF
ENGINE COOLANT
1. CHECK ENGINE COOLANT LEVEL AT RESERVE TANK
The coolant level should be between the ºLOWº and
ºFULLº lines.
If low, check for leaks and add coolant up to the ºFULLº
line.
Dirt, leaves or insects on radiator or condenser
Hoses, Water pump, thermostat housing, radiator,
heater, core, plugs or head gasket leakage
Thermostat faulty
Incorrect ignition timing
Electric cooling system faulty
Radiator hose plugged or rotted
Water pump faulty
Radiator plugged or cap faulty
Cylinder head or block cracked or water passage
clogged
2. CHECK ENGINE COOLANT QUALITY
There should not be any excessive deposits of rust or scales
around the radiator cap or radiator filler hole, and the cool-
ant should be free from oil.
If excessively dirty, replace the coolant.
Check thermostat
Reset tinning
Inspect electric cooling system
Replace hose
Replace water pump
Check radiator and cap
Repair as necessary
TROUBLESHOOTING
CO±12, 13
IG±17, 20
CO±20, 22 Clean radiator or condenser
Repair as necessary Engine overheats
Possible causeRemedy Problem
CO±6, 9 Page
± COOLING SYSTEMCheck and Replacement of Engine CoolantCO±4

REMOVAL OF RADIATO
1. DRAIN ENGINE COOLANT (See page CO±4 or 5)
2. REMOVE BATTERY
3. REMOVE IGNITION COIL (2VZ±FE), IGNITER AND
BRACKET ASSEMBLY
4. DISCONNECT COOLANT RESERVOIR HOSE
5. DISCONNECT RADIATOR NOSE
6. DISCONNECT COOLING FAN MOTOR
CONNECTOR(S)
7. (A/T)
DISCONNECT OIL COOLER HOSES
8. REMOVE RADIATOR AND ELECTRIC COOLING
FAN(S)
Remove the two bolts, supports and radiator.
9. REMOVE ELECTRIC COOLING FANS FROM RADIATOR
DISASSEMBLY OF RADIATOR
(See page CO±15)
1. REMOVE TANK PLATE
(a) Raise the claws of the tank plates with SST in the
numerical order shown in the figure.
SST 09230±00010
NOTICE: Be careful not to damage the core plate.
2. INSPECT COOLING SYSTEM FOR LEAKS
(a) Fill the radiator with coolant and attach a radiator cap
tester.
(b) Warm up the engine.
(c) Pump it to 1.2 kg/cm
2 (17.1 psi, 118 kPa), check that
pressure does not drop.
If the pressure drops, check for leaks as the hoses, radiator
or water pump. If no external leaks are found, check the heat-
er core, cylinder block and head.
± COOLING SYSTEMRadiatorCO±16

FUEL SYSTEM
1. When disconnecting the high fuel pressure line, a large
amount of gasoline will spill out, so observe the following
procedure:
(a) Put a a container under the connection.
(b) Slowly loosen the connection.
(e) Disconnect the connection.
(d) Plug the connection with a rubber plug.
(Flare Nut Type 3S±FE only)
(a) Apply a light coat of engine oil to the flare and tighten
the flare nut by hand.
(b) Using SST, tighten the flare nut to specified torque.
SST 09631±22020
Torque: 310 kg±cm (22 ft±ib, 30 N±m)
HINT: Use a torque wrench with a fulcrum length of 30
cm 0 1.81 in.). 2. When connecting the flare nut or union bolt on the high pres-
sure pipe union, observe the following procedure:
(Union Bolt Type)
(a) Always use a new gasket.
(b) Tighten the union bolt by hand.
(c) Tighten the union bolt to the specified torque.
Torque: 300 kg±cm (22 ft±Ib, 29 N±m)
3. Observe the following precautions when removing and
installing the injectors.
(a) Never reuse the 0±ring.
(b) When placing a new 0±ring on the injector, take care not to
damage it in any way.
(c) Coat a new 0±ring with spindle oil or gasoline before instal-
ling never use engine, gear or brake oil.
4. Install the injector to delivery pipe and intake manifold as
shown in the figure.
± EFI SYSTEMInspection PrecautionsFI±8

1. Wiring connection
2. Power to ECU
(1) Fusible link(s)
(2) Fuse(s)
(3) ER main relay (See page FI±121)
3. Air flow meter (See page FI±104)
4. Water temp. sensor (See page FI±125)
5. Air temp. sensor (See page FI±104)
6. Injection signal circuit
(1) Injector wiring
(2) ECU (See page FI±130)
CHECK FUEL SUPPLY TO INJECTOR
1. Fuel tank
2. Fuel pressure in fuel line
(1) Short terminals +B and FP of the check connec-
tor.
(2) Fuel pressure at fuel return hose of fuel filter can
be felt. (See page FI±70)
1. ISC system
(1) Wiring connection(s)
(2) ISC valve (See page FI±116 or 118)
(3) ECU (test by substitution)
2. (3S±FE) ±
Idle speed ± Adjust (See page EM±19) 1. Fuel line leakage ± deformation
2. Fuse(s)
3. Fuel pump (See page FI±68)
4. Fuel filter
5. Fuel pressure regulator
(See page FI±86 or 88) 1. Oil filler cap
2. Oil dipstick
3. Hose connections
4. PCV hoses
5. EGR system EGR valve stays open CHECK EFI ELECTRONIC CIRCUIT USING
VOLT/OHMMETER
(See page FI±31)
CHECK DIAGNOSIS SYSTEM
Check for output of diagnosis code.
(See page FI±22)
CHECK FOR VACUUM LEAKS IN AIR
INTAKE LINE
SYMPTOM ± ENGINE OFTEN STALLS
CHECK IDLE SPEED
Standard: 700 + 50 rpmDiagnostic code(s) (See page FI±25 or 27)
OK CONTINUED FROM PAGE FI±12
OK CONTINUED ON PAGE FI±14Element ± Clean or replace
CHECK AIR FILTER
Malfunction
code(s)
Normal code
BADBAD
BAD
BADBAD
± EFI SYSTEMTroubleshootingFI±13

1. Wiring connection
2. Power to ECU
(1) Fusible link(s)
(2) Fuse(s)
(3) ER main relay (See page FI±121)
3. Air flow meter (See page FI±104)
4. Water temp. sensor (See page FI±125)
5. Air temp. sensor (See page FI±104)
6. Injection signal circuit
(1) Injection wiring
(2) ECU (See page FI±130)
7. Oxygen sensor(s)
(Seepage FI±129 or 131)
CHECK IGNITION TIMING
1. Connect terminals TE1 and E1 of the check con-
nector.
2. Check ignition timing.
Standard: 10
° BTDC @ idle
1. Oil filler cap
2. Oil dipstick
3. Hose connections
4. PCV hoses
5. EGR system ± EGR valve stays open
CHECK EFI ELECTRONIC CIRCUIT USING
VOLT/OHMMETER
(See page FI±31)
1. Cold start injector (See page FI±78 or 81)
2. Cold start injector time switch
(See page FI±124)
1. Fuel pump (See page FI±68)
2. Fuel filter
3. Fuel pressure regulator
(See page FI±84 or 86)
CHECK DIAGNOSIS SYSTEM
Check for output of diagnosis code.
(See page FI±22)
SYMPTOM ± ENGINE BACKFIRES± Lean Fuel Mixture
CHECK FOR VACUUM LEAKS IN AIR
INTAKE LINE
CHECK COLD START INJECTOR
(See page FI±78 or 81)
CHECK FUEL PRESSURE
(See page FI±70)
Diagnostic code(s) (See page FI±25 or 27)
Ignition timing ± Adjust
(See page IG±17 or 21)
CHECK INJECTORS
(See page FI±88 or 93)Injectors ± Clogged
Malfunction
code(s)
Normal code
BAD
BAD
BAD BAD
BAD
± EFI SYSTEMTroubleshootingFI±18