Power brakes function only when the engine is running
The power brakes utilize vacuum pressure which is only created when the engine is running. Never let the vehicle roll to a stop with the engine switched off.
If the power brakes are not working, considerably higher pressure will be required on the brake pedal to compensate for the lack of power assistance. This can happen for example when towing your vehicle or if the engine is switched off when the vehicle is rolling. The brake pedal feels harder than usual.
See also:
Use of Additives
With the exception of gas line antifreeze during
winter months, do not add solvents, thickeners,
or other store-bought additives to your
vehicle's fuel, cooling, or lubricating systems.
Overuse ...
The Moves
While the interior is the S80's standout area, the driver's digs were never
the old model's main fault — a lackluster driving experience was. The S80's
optional V-8 engine adds some excitement, ma ...
Removing the cover to access the bulbs
NOTE
Before starting to replace a bulb, see page 306.
1. Loosen the cover's four retaining screws with the tool (1) provided in the
vehicle's tool kit (see page 290). The screws sho ...