RAM 2500 Van V8-5.9L VIN Z LDC (2000)
Coolant: Service and Repair
GENERAL
NOTE: Do not remove radiator cap for routine coolant level inspections. The coolant level can be checked at the coolant reserve/overflow tank.
The coolant reserve/overflow system provides a quick visual method for determining the coolant level without removing the radiator pressure cap.
With engine idling and at normal operating temperature, observe coolant level in coolant reserve/overflow tank. The coolant level should be between
the MIN and MAX marks.
COOLANT-SERVICE LEVEL CHECK
The cooling system is closed and designed to maintain coolant level to the top of the radiator.
WARNING: DO NOT OPEN RADIATOR DRAINCOCK WITH ENGINE RUNNING OR WHILE ENGINE IS HOT AND COOLING
SYSTEM IS UNDER PRESSURE.
When vehicle servicing requires a coolant level check in the radiator, drain several ounces of coolant from the radiator drain cock. Do this while
observing the coolant reserve/overflow system tank. The coolant level in the reserve/overflow tank should drop slightly. If not, inspect for a leak
between radiator and coolant reserve/overflow system connection. Remove radiator cap. The coolant level should be to the top of the radiator. If not
and if coolant level in reserve/overflow tank is at the MIN mark, check for:
-
An air leak in the coolant reserve/overflow tank
-
An air leak in the radiator filler neck
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Leak in the pressure cap seal to the radiator filler neck.
COOLANT SERVICE
Refer to Maintenance for engine coolant recommended schedules.
COOLANT-ADDING ADDITIONAL
Do not remove the radiator cap to add coolant to the system. When adding coolant to maintain the correct level, do so at the coolant reserve/ overflow
tank with a 50/50 mixture of ethylene-glycol antifreeze (containing Alugard 340-2 (TM) and water. Remove the radiator cap only for testing or when
refilling the system after service. Removing cap unnecessarily can cause loss of coolant and allow air to enter system. This produces corrosion.
