7. Drive the vehicle to complete the relearning process.
•
The vehicle may need to be driven 16 km (10 miles) or more to
relearn the idle and fuel trim strategy.
•
If you do not allow the engine to relearn its idle trim, the idle
quality of your vehicle may be adversely affected until the idle
trim is eventually relearned.
If the battery has been disconnected or a new battery has been installed,
the clock and radio settings must be reset once the battery is
reconnected.
•
Always dispose of automotive
batteries in a responsible manner.
Follow your local authorized
standards for disposal. Call your
local authorized recycling center
to find out more about recycling
automotive batteries.
ENGINE COOLANT
Checking engine coolant
The concentration and level of engine coolant should be checked at the
mileage intervals listed in the
Scheduled Maintenance Guide
. The
coolant concentration should be maintained at 50/50 coolant and distilled
water, which equates to a freeze point of -36° C (-34° F). Coolant
concentration testing is possible with a hydrometer or antifreeze tester
(such as the Rotunda Battery and Antifreeze Tester, 014–R1060). The
level of coolant should be maintained at the “FULL COLD” or within the
“COLD FILL RANGE” level in the coolant reservoir. If the level falls
below, add coolant per the instructions in the
Adding engine coolant
section.
Your vehicle was factory-filled with a 50/50 engine coolant and water
concentration. If the concentration of coolant falls below 40% or above
60%, the engine parts could become damaged or not work properly.
A
50–50 mixture of coolant and water provides the following:
•
Freeze protection down to -36° C (-34° F).
•
Boiling protection up to 129° C (265° F).
•
Protection against rust and other forms of corrosion.
LEAD
RETURN
RECYCLE
2004 Navigator
(nav)
Owners Guide (post-2002-fmt)
USA English
(fus)
Maintenance and Specifications
326
