Volvo 164 Owner's Manual - page 63
FAULT TRACING
The information given below is only intend-
ed to serve as a guide in localizing and
temporarily correcting
minor faults. After
having
carried
out
any such measures,
have them looked over by an experienced
mechanic.
The engine does not start although starter
motor turns it over at normal speed
1. Check to make sure there is fuel in the
tank.
2. Check to make sure the fuel pump is
functioning
properly.
This is done by
turning the ignition key to driving posi-
tion. This will run the pump for 1 to 1.5
seconds. If the pump does not function,
check to make sure that the pump fuse
i s not blown.
3. Attn. Do not touch the accelerator pedal
i f the engine is cold.
I f the engine is hot, start it with the ac-
celerator
pedal
depressed
halfway.
Avoid repeated short attempts at start-
i ng. Instead, let the starter motor run a
little l onger (max.
1 5-20 seconds) at
each try.
62
4. With damp weather, when flashover is
possible, wipe the park plug isolators
clean. Release the distributor cap and
wipe it dry.
Check to make sure that the ignition
l eads are properly fitted in the distrib-
utom head and ignition coil.
5. Check to make sure that all contacts for
sensors and injectors are properly fitted .
6. If the engine turns over without start-
i ng, there may be too much fuel in the
cylinders, with damp plugs as a result.
Screw out the plugs and wipe them dry.
Check the electrode gap.
If the engine misfires, the reason can be:
1. That one of the ignition leads has loos-
ened in the distributor cover or from the
spark plug.
2. That one or more of the spark plugs are
coated with soot or oiled up, in which
case the plug concerned should be clean-
ed or changed and the spark plug gap
adjusted.
3. That the distributor cap and rotor arm
are cracked or damaged.
How to start your car on a downgrade
Switch on the ignition, engage 3rd gear or
even 4th and let the car roll downwards
with the clutch pedal depressed. When the
speed is up to 15-20 kmph (9-12 mph)
and not before, release the clutch pedal
slowly. Being towed: Secure the towline to
the towing loop. The car is towed at an even
speed in 2nd gear. Try starting as sug-
gested in the previous paragraph.
Warning! Do not attempt to start a car with
automatic transmission by rolling it down-
hill or towing it. See recommendations on
page 26.
4. That one of the ignition leads is in poor
condition.
5. That the ignition point gap in the distri-
butor is insufficient or non-existent.
6. That the ignition points are badly burn-
ed.
7. Fault in fuel system's electronic unit . This
must be checked by a workshop.