GMC Yukon Owner's Manual page 347

Short TripKity Maintenance Schedule
-=
Gasoline Engines
If your engine has a thermostatically
controlled cooling fan, inspect all hoses
and ducts for proper hook-up (or every
12 months, whichever occurs first). Be sure
the valve works properly.
This is
CI
Noise
E~nission Control Service. Applicable only to
vehicles s o l d in the United Stutes.
0
Inspect engine accessory drive belt.
Replace fuel filter.
An Emission Control Service.
0
Conduct Exhaust Gas Recirculation (EGR)
system inspection as described in the
service manual.
An Emission C m l d Service.
An Enzi.ssior.1 Cmtrol Service.
0
Conduct evaporative control system
inspection. Check all fuel and vapor lines
and hoses for proper hook-up, routing and
condition. Check that the purge valve works
properly (if equipped). Replace as needed.
0
Inspect fuel tank, cap and lines for damage
or leaks. Inspect fuel cap gasket for any
damage. Replace parts as needed.
An Enzission Control Service.
An Emission Control Service.
I
I
I
I
DATE ACTUAL MILEAGE
SERVICED BY:
7-19