Volvo 940 - Manual (Page 187)

1993 Volvo 940
WARNING!
The distributor ignition system operates at very high voltages. Special safety precautions must be
followed to prevent injury.
Always turn the ignition off when:
●
connecting engine test and diagnostic equipment to the vehicle (timing light, tach-dwell tester,
ignition oscilloscope, etc..).
●
Replacing distributor ignition components e.g. plugs, coil, distributor, HT leads etc.
●
Do not touch any part of the distributor ignition system while the engine is running. This may result
in unintended movements and body injury.
Replacing spark plugs
The spark plugs should be changed every 30,000 miles (48,000 km). However, city driving or fast
highway driving may necessitate changing after 15,000 miles (24,000 km) of driving. When installing
new plugs, be sure to fit the right type and use correct torque, see Specifications. When changing the
plugs, check that the suppressor connectors are in good condition. Cracked or damaged connectors
should be replaced. When changing the spark plugs, clean the terminals and the rubber seals.
CAUTION: Do not use silicone-based lubricants, which can have adverse effects on electrical
components.
Battery:
●
Make sure the battery leads are properly connected and tightened.
●
Never disconnect the battery when the engine is running.
●
The battery leads must be disconnected when recharging the battery.
●
Turn radio off before disconnecting the battery. If the radio has an anti-theft code and the battery has
been disconnected, the code must be re-entered before the radio will function properly.
Batteries contain corrosive and toxic acids. It is of the utmost importance that old batteries are disposed
of correctly. Your Volvo dealer can assist you in this matter.
pg. 8:12 Brake fluid, Power steering fluid
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