1990 VOLVO 240 Owners Manual

Volvo 1990 240 Model


Oxygen Sensor

On the B230F engines, the oxygen sensor (Lambda-sond) is electrically \
heated. The use of a PTC
(Positive Temperature Coefficient) element to heat the Lambda-sond ens\
ures a shorter warm up time
and continuous operation at its working temperature.
This type of Lambda-sond does not require periodic replacement.

Catalytic Converter

This is a supplementary device in the exhaust system, designed to reduce\
exhaust emissions.
This device is mainly a container with a ceramic material insert, design\
ed to let the exhaust gases pass
through channels in the insert. The channel walls are covered by a thin \
layer of platinum and rhodium.
These metals act as catalysts, permitting a chemical action to occur wit\
hout actually taking part in it.
The carbon monoxide content will increase if the Catalytic Converter is \
damaged.
CAUTION:
Vehicles with Catalytic Converter must use unleaded fuel only. Otherwise\
the Catalytic Converter will
become damaged and ineffective.

Torque catalytic converter mounting bolts

The Catalytic Converter mounting bolts should be re-torqued at the 600-1\
,200 mile (1000-2000) km
inspection.
pg. 68 Servicing
Engine Crankcase Ventilation System
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Volvo 1990 240 Model

Crankcase ventilation

The engine is provided with positive crankcase ventilation (PCV) which\
prevents crankcase gases from
being released into the atmosphere. Instead, the crankcase gases are adm\
itted to the intake manifold and
cylinders.

B230F
1. PCV nipple
2. Flame
Guard
3. Oil trap

PCV system, B230F engine

The PCV nipple in the intake manifold should be cleaned after 60,000 mil\
es (96,000 km). pg. 69 Servicing
Engine Evaporative Emissions

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Volvo 1990 240 Model

Evaporative control systems

Vehicles intended for the North American market are equipped with a fuel\
vapor evaporative control
system, which prevents gasoline fumes from being released into the atmos\
phere.
The system is comprised of an expansion chamber in the fuel tank, a roll\
-over valve on the cross
member in front of the fuel tank, and a charcoal canister with built-in \
vacuum valve. The components
are interconnected by hoses which channel fuel vapor from the gas tank t\
o the charcoal filter where they
are stored until the engine is started and then drawn into the engine fu\
el induction system.

Engine Ignition

Change spark plugs

The spark plugs should be changed every 30,000 miles (48,000 km).
However, prolonged city driving or fast highway driving may necessitate \
changing spark plugs after
10,000 miles (16,000 km) of driving. When installing new plugs, be sur\
e to fit the right type and use the
correct torque, see "Specifications".
When changing the spark plugs, check that the suppressor connectors are \
in good condition. Cracked or
damaged connectors should be replaced.
When changing spark plugs, clean the cables and cable terminals, also th\
e rubber seals. If the car is
driven on roads where salt is used during the winter, coat the cables wi\
th silicone.

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Volvo 1990 240 Model
WARNING!
The ignition system operates at very high voltages. Special safety preca\
utions must be followed to
prevent injury:
Always turn the ignition off when:
l connecting engine test and diagnostic equipment to the vehicle (timing \
light, tach-dwell tester,
ignition oscilloscope, etc.).
l Replacing ignition components e.g. plugs, coil, distributor, high-tensio\
n leads, etc.




Contents | Top of Page
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Volvo 1990 240 Model
pg. 70 Manual transmission


Manual transmission with overdrive, M47 II

Capacity: 1.6 US qts 1.5 liters.
Fluid type: Automatic Transmission Fluid Type F
Replace: at 600-1,200 mile (1,000-2,000 km) service only.

The oil level should be up to the level/filler plug.
When replacing transmission oil, drain the oil immediately after driving\
, while it is still hot, by
removing the drain plug.
Warning: Use care to prevent possible burning from hot transmission
oil.
pg. 71 Automatic transmission
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Volvo 1990 240 Model


Automatic transmission

Capacity: 7.8 US qts (7.4 liters)
Fluid type: Automatic Transmission Fluid type Dexron II D.
Replace: every 20,000 miles (32,000 km).

A Cold transmission: oil temperature = + 105°F ( + 40°C) .
This is a normal temperature for the transmission after idling for about\
10 minutes.
At oil temperature below +105°F (+40°C), the level may be below \
the MIN mark.

B Warm transmission: oil temperature = + 195°F ( + 90°C) .
This temperature is obtained when driving for about 30 minutes.
At oil temperature above + 195°F ( + 90°C), the level may be abo\
ve the MAX mark.
Note!
The engine should be idling when checking transmission fluid
level.

Check the oil level as follows:
Park the car on level surface with the engine idling.
Slowly move the selector lever through all the gear positions and then t\
o position P. Wait 2 minutes
before checking the oil level. As the illustration shows, the dipstick h\
as a "Cold" and a "warm" side.
The oil level should be between the MIN and MAX marks.
Wipe the dipstick with a clean cloth.
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Volvo 1990 240 Model
WARNING! The oil may be very
hot!

Do not use rags which can leave lint on the dipstick.
The transmission is topped up via the dipstick tube.
The space between the MIN and MAX marks on the dipstick corresponds to 0\
.5 US qts (0.5 liter). Do
not fill the transmission with too much oil, since this can result in oi\
l being ejected from the
transmission.
Too little oil, on the other hand, can negatively affect transmission op\
eration, particularly in very cold
weather.
pg. 72 Rear axle oil, Power steering fluid, Brake fluid


Rear axle oil

Capacity: 1030 1.4 US qts 1.3 liters
1031 1.7 US qts 1.6 1iters
Oil type: API GL-5 (MIL-L-2105 B or C) or Volvo Rear Axle Oil 1161329 \

Viscosity: SAE 90 or 80W / 90
Replace: at 600 - 1,200 mile (1,000 - 2,000 km) service only

The oil level should be up to the filler plug (A).
Drain rear axle oil through drain plug (B).
When the temperature is consistently below 15°F (-10°C), use API\
GL-5 SAE 80/90W oil.
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Volvo 1990 240 Model
Cars equipped with limited slip differentials should use oils with prope\
r additives.



Power steering fluid

Capacity: 0.8 US qts = 0.75 1iters
Fluid type: ATF
Replace: no fluid change required.

The dipstick is attached to the cap. Fluid level should be between MIN a\
nd MAX marks. Add fluid
when the level is at the ADD mark.



Brake fluid

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