CHEVROLET 2011 Express - Manual (Page 381)

Black plate (7,1) Chevrolet Express Owner Manual - 2011
Service and Maintenance 11-7
First Engine Oil Change After
Every 160 000 km/100,000 Miles
. Automatic transmission fluid
change (normal service).
See Automatic Transmission
Fluid (4-Speed Transmission) on
page 10‑11 or Automatic
Transmission Fluid (6-Speed
Transmission) on page 10‑14.
. All‐wheel drive only: Transfer
case fluid change (normal
service). Check vent hose at
transfer case for kinks and
proper installation. Check to be
sure vent hose is unobstructed,
clear, and free of debris.
During any maintenance, if a
power washer is used to
clean mud and dirt from the
underbody, care should be taken
to not directly spray the transfer
case output seals. High pressure
water can overcome the seals
and contaminate the transfer
case fluid. Contaminated fluid
will decrease the life of the
transfer case and should
be replaced.
. Spark plug replacement and
spark plug wires inspection.
An Emission Control Service.
First Engine Oil Change After
Every 240 000 km/150,000 Miles
. Engine cooling system drain,
flush, and refill (or every
five years, whichever occurs
first). See Engine Coolant on
page 10‑20. An Emission
Control Service.
. Engine drive belts inspection
for fraying, excessive cracks,
or obvious damage (or every
10 years, whichever occurs
first). Replace, if needed.