GMC 2003 Sierra - Manual (Page 407)

How to Add Fluid When to Check and What to Use
Here’s how lo add lluid. Rsfer to the Mamtenance
Schedule tn determine what kind ot fluid to use^ See
Part D‘ Hecomwended Fiaids and Luhricanis cn
finge 6 - f S .
1. Remove the tiller plug.
2. Add fluid at the filter plug hole. Add only enough
fluid to bring Ihe fluid level up to the bottom of Ihe
filler plug hole.
3. Install the tiller plug. Be sure ihe plug is fully
seated.
Hydraulic Clutch
The hydraulic clutch iinkage in your vehicle Is
self-adjusling The clutch master cylinder reservoir is
Til led with hydraulic clutch fluid.
tt is rot necessary to regularly check clutch fluid uni
you suspect Ihe re
es
a leak in the system. Adding
fluid won't correct a leak.
A fluid loss in this sysloin could indicafe a problem.
Havo the system Inspected ar^d repaired.
ESS
The dutch master cylinder
reservoir is located in the
rear of the engine
Compartment on the
driver’s side ol the vehicte.
See Engine Comparimeni
Overview on page 5-12
for mora information
on location.
Refer to Ihe Mamtanance Schedule to delermine how
often you should chock ihe fluid level in your dutch
master cytinder reservoir end for the proper fluid. See
Part B: Owner Checks and Service? on page 6 - i J
and Pad r>: Recommended Fluids and iubricanls on
page& 1 &
How to Check and Add Fluid
The proper fluid should be added if the level does rdOt
reach ihe bottom of the diaphragm when it's in place in
Ihe reservoir. See Ihe instructions on the reservoir cap.
5-32