GMC 1996 Suburban Owner's Manual page 364

I
Long Trip/Highway Maintenance Schedult
--
Gasdine Engines
60,000 Miles (100 000 km) (Continued)
0
Inspect fuel
tank, cap and lines for damage
or leaks. Inspect fuel cap gasket for any
damage. Replace parts as needed.
An Emission Control Service.
0
Vehicles With GVWR Above 8,500 lbs.
Only: Inspect shields and underhood
insulation for damage or looseness. Adjust
or replace as required.
This is
a
Noise Emissiorl
Control Service. Applicable only to vehicles sold in
the United States.
0
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 a Noise
Emission, Control Service.
Applic-uble only
to
vehicles sold in the United States.
0
Conduct Exhaust Gas Recirculation (EGR)
system inspection as described in the
service manual.
An Ewission Control Service.
T
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
Conduct evaporative control system
An Elnission Control Service.
I I
1
DATE SERVICED B Y ACTUAL MILEAGE
7-36