PCM 2003 5.0L MPI, Руководство по эксплуатации и техническому обслуживанию владельца

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L510010-03
C.C.
ENGINE MAINTENANCE - 11
TESTING COOLANT FOR ALKALINITY
It is recommended that the coolant in the fresh-water
section be tested each year for alkalinity. Coolant that
is not alkaline has lost the effectiveness of its rust
inhibitors, which can lead to internal corrosion and
cooling system problems. It is recommended to replace
the standard ethylene glycol coolant in the system every
two years to prevent a build-up of harmful chemicals
within the fresh-water system.
1. Obtain red litmus paper from a local supplier
(drugstore, laboratory, etc.).
2. Remove the pressure cap from the coolant fi ller
neck and insert one end of the litmus paper into
he coolant.
3. If red litmus paper turns blue, coolant is alkaline
and does not need to be replaced. If the litmus
paper remains red, the coolant is not alkaline and
must be replaced.
DRAINING FRESH-WATER COOLING SYSTEM
NOTICE: To protect the environment, dispose of coolant
properly. Check your local restrictions for proper disposal
instructions of removed coolant.
NOTICE: Refer to cooling system water fl ow diagrams
for drain locations.
1. Remove the following drain plugs to drain coolant
from the fresh-water cooling system:
− Drain plug on heat exchanger
− Remove the large hose from the engine block
water circulating pump, or drain plug on
circulation pump
− Drain plugs on the cylinder block (one on
each side)
2. Remove the following drain plugs to raw water
from the fresh-water cooling system:
− Drain plug on oil cooler
− Drain plug on heat exchanger
− Drain plug on the bottom of each exhaust
manifold
3. After system has drained completely, coat all the
drain plugs with PerfectSeal (or equivalent) and
reinstall in the proper locations. Reinstall the
hose(s) on the water circulating pump and tighten
the clamps securely.