1996 VOLVO 850 timing belt

1996 Volvo 850
EMISSION SYSTEM
MAINTENANCE



Engine oil and filter
1 R
3 R R 3 R R 3 R R 3 R R 3 R R 3 R
Engine drive belt accessory belt) R
Air cleaner filter R R
Spark plugs R R
Automatic transmission fluid

I
I I I I I
Timing belt - B 5254 S, B 5234 T
4


1) See section "Engine oil" for detailed information.

NOTE: The oil should be changed at these intervals or after 750 hours of\
driving or after 12 months
which ever occurs first. See "Service Reminder indicator",
page 1:5.

2) For services beyond 60,000 miles (96,000 km), consult your "Mainte\
nance records booklet".
3) These intervals may apply, depending on actual driving conditions (\
see page 8:11 for details)
4) For proper functioning of the vehicle and its emission control syste\
m, Volvo recommends that the
timing belt be replaced every 70,000 (112,000 km).
pg. 8:5 Servicing (cont.)
Maintenance schedule

A = Adjust (Correct if necessary) I = Inspect (Correct or Replace if \
necessary)
R = Replace L = Lubricate
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1996 Volvo 850

Unstable idle, misfiring, or poor emission control is often caused by le\
aking vacuum hoses or
connections. Check all vacuum hoses and connections.

Checking and adjusting idle air control system

Your Volvo is equipped with an electronically controlled idle air contro\
l system that requires no
checking or adjustment.

Timing belt

For proper functioning of the vehicle and its emission control systems, \
Volvo recommends that the
timing belt be replaced every 70,000 miles (112,000 km).

Fuel system cap, tank and lines and connections

The effectiveness of the fuel system to contain hydrocarbons is dependen\
t largely on a leak-free system.
Check for proper sealing of the gasoline filler cap which contains "O" r\
ing type seals.

Fuel (line) filter

The fuel line filter is located next to the fuel pump. For proper functi\
oning of the vehicle and its
emission control systems, the fuel line filter should be replaced at 100\
,000 miles (160,000 km). The
filter is replaced as one complete unit. Replace more frequently if cont\
aminated fuel is introduced into
the tank (or if there is reason to suspect that this has occurred).

Charge air cooler (Intercooler)

The B 5234 Turbo engine employs a turbo-compressor to force air into the\
engine inlet manifold and a
charge air cooler to cool the compressed inlet air. The resulting increa\
se in air flow raises pressure in the
intake manifold by approx. 8.7 psi (over atmospheric pressure) and eng\
ine power output by approx. 50
horsepower over that developed by the normally-aspirated engine. The cha\
rge air cooler (which
resembles a radiator) is located between the turbo-compressor and inlet\
manifold.
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