yellow
blue
6-23
NOTICE:
Your radiator cap is a 15 psi (105 kPa) pressure
-
type
cap and must be tightly installed to prevent coolant
loss and possible engine damage from overheating.
Be sure the arrows on the cap line up with the
overflow tube on the radiator filler neck.
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
When you replace your thermostat, an ACDelco
R
thermostat is recommended.
Engine Coolant
The cooling system in your vehicle is filled with
DEX
-
COOL
R
engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
DEX
-
COOL
R
extended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem with
engine overheating, see “Engine Overheating” in
the Index.
Summary of Contents for 1999 Yukon Denali
Page 6: ...yellowblue vi Model Reference This manual covers this model 4 Door Utility ...
Page 64: ...yellowblue 1 58 NOTES ...
Page 132: ...yellowblue 2 68 Instrument Panel ...
Page 225: ...yellowblue 4 55 NOTES ...
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Page 372: ...yellowblue 7 44 Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED ...
Page 373: ...yellowblue 7 45 Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED ...
Page 374: ...yellowblue 7 46 Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED ...
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