Power Steering Fluid - Ford Grand Marquis Owner's Manual

Start and idle the engine until the radiator
upper hose is warm (this indicates the
thermostat is open and coolant is flowing
through the entire system).
Immediately shut off the engine and let cool.
Cautiously remove the pressure relief cap and
add a 50/50 mixture of specified coolant and
water until the coolant is at the COLD FILL
level in the coolant reservoir.
Reinstall the pressure cap securely.
Check for leaks at the draincock.
Recheck the engine coolant level, using the
recommended procedure, after one or two
occasions of vehicle use.

Power Steering Fluid

Check the level of the power steering fluid at
least twice a year (i.e., every Spring and Fall).
Checking and Adding Power Steering
Fluid
1. Start the engine and let it run until the
power steering fluid reaches normal
operating temperature. The power steering
fluid will be at the right temperature when
the engine coolant temperature gauge in the
instrument cluster is near the center of the
NORMAL operating temperature range.
2. While the engine idles, turn the steering
wheel back and forth several times. Make
sure that the cap assembly is installed at this
time.
3. Turn the engine off.
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