Volvo 960 Automobile User Manual


 
1993 Volvo 960
Misfiring at highway driving
speed
Spark plugs fouled.
Drive the vehicle in a lower gear and keep the engine rpm higher for a few miles in order to remove
carbon deposit on the spark plugs. If this procedure is not effective, clean or replace the spark plugs.
Please be aware that misfiring spark plugs can cause damage to the three-way catalytic converter.
pg. 6:19 Service diagnosis (cont.)
Emergency sun roof operation
If, because of an electrical fault (e.g. a blown fuse), it is not possible to operate the sun roof electrically,
then it is possible to operate it manually.
First, using a small screwdriver, remove the two screws that secure the sun roof motor cover to the
headliner. Then using a screwdriver, depress the white plastic clutch pin in the center of the motor screw
to close or open the roof as desired.
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