Chevrolet Silverado / GMC Sierra. Manual — part 2368
5. Replace the contaminated disc brake pads
as a complete axle set. Refer to Front
Disc Brake Pads Replacement (JH6,
JH7) or Front Disc Brake Pads
Replacement (JD9, JF3, JF7) and/or
Rear Disc Brake Pads Replacement
(JH6, JH7) or Rear Disc Brake Pads
Replacement (JD9) .
Did you complete the cleaning, inspection and
replacement?
Go to Step 12
12
Visually inspect each of the disc brake rotor
shields/backing plates for evidence of contact
with the brake rotors.
Are any of the brake rotor shields/backing
plates contacting the brake rotors?
Go to Step 13
Go to Step 14
13
Repair or replace the disc brake rotor
shields/backing plates as required. Refer to
Front Brake Shield Replacement (JD9, JF3,
JF7) or Front Brake Shield Replacement
(JH6, JH7) and/or Rear Disc Brake Backing
Plate Replacement (JD9) or Rear Disc
Brake Backing Plate Replacement (JH6,
JH7) .
Did you complete the repair or replacement?
Go to Step 14
-
14
1. Check the thickness of each of the disc
brake rotors.
2. Make a determination for each brake
rotor if the rotor can be REFINISHED
and REMAIN ABOVE the minimum
requirements.
Refer to Brake Rotor Thickness
IMPORTANT:
Make the following determination AND
ANSWER the question INDIVIDUALLY for
EACH rotor.
2008 Chevrolet Silverado 1500
2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Measurement .Does the disc brake rotor meet
the minimum requirements for REFINISHING? Go to Step 15
Go to Step 18
15
Inspect each of the disc brake rotors for
thickness variation that exceeds the maximum
acceptable level. Refer to Brake Rotor
Thickness Variation Measurement .Does the
brake rotor exhibit thickness variation that
exceeds the maximum acceptable level?
IMPORTANT:
Perform the following inspection AND ANSWER the
question INDIVIDUALLY for EACH rotor.
Go to Step 17
Go to Step 16
16
1. Inspect each of the disc brake rotors for
the following surface and wear conditions:
Refer to Brake Rotor Surface and
Wear Inspection .
Heavy rust and/or pitting
Cracks and/or heat spots
Excessive blueing discoloration
Deep or excessive scoring beyond
maximum acceptable level
2. Make a determination for each brake
rotor if the rotor requires refinishing
based upon the results of the inspection.
If the brake rotor exhibits any of the
conditions listed previously, it requires
refinishing.
Does the brake rotor require REFINISHING?
IMPORTANT:
Make the following determination AND
ANSWER the question INDIVIDUALLY for
EACH rotor.
Go to Step 17
Go to Step 22
1. Refinish the brake rotor. Refer to Brake
2008 Chevrolet Silverado 1500
2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
17
Rotor Refinishing .
2. Inspect the brake rotor thickness. Refer to
Brake Rotor Thickness Measurement .
Were you able to REFINISH the brake rotor
within the minimum requirements?
Go to Step 22
Go to Step 21
18
Is the brake rotor at or below the DISCARD
requirements?
Go to Step 21
Go to Step 19
19
Inspect each of the disc brake rotors for
thickness variation that exceeds the maximum
acceptable level. Refer to Brake Rotor
Thickness Variation Measurement .Does the
brake rotor exhibit thickness variation that
exceeds the maximum acceptable level?
IMPORTANT:
Perform the following inspection AND ANSWER the
question INDIVIDUALLY for EACH rotor.
Go to Step 21
Go to Step 20
20
1. Inspect each of the disc brake rotors for
the following surface and wear conditions:
Refer to Brake Rotor Surface and
Wear Inspection .
Heavy rust and/or pitting
Cracks and/or heat spots
Excessive blueing discoloration
Deep or excessive scoring beyond
maximum acceptable level
2. Make a determination for each brake
rotor if the rotor requires replacement
based upon the results of the inspection.
IMPORTANT:
Make the following determination AND
ANSWER the question INDIVIDUALLY for
EACH rotor.
2008 Chevrolet Silverado 1500
2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
If the brake rotor exhibits any of the
conditions listed previously, it requires
replacement.
Does the brake rotor require
REPLACEMENT?
Go to Step 21
Go to Step 22
21
Replace the brake rotor. Refer to Front Brake
Rotor Replacement (JH6, JH7) or Front
Brake Rotor Replacement (JD9, JF3, JF7)
or Rear Brake Rotor Replacement (JD9) or
Rear Brake Rotor Replacement (JH6) or
Rear Brake Rotor Replacement (JH7) .Did
you complete the replacement?
IMPORTANT:
Whenever a brake rotor is replaced, the assembled
lateral runout (LRO) of the rotor must be measured
to ensure optimum performance of the disc brakes.
Go to Step 24
-
22
Inspect each of the disc brake rotors for
assembled LRO that exceeds the maximum
acceptable level. Refer to Brake Rotor
Assembled Lateral Runout
Measurement .Does the brake rotor exhibit
assembled LRO that exceeds the maximum
acceptable level?
IMPORTANT:
Perform the following inspection AND ANSWER the
question INDIVIDUALLY for EACH rotor.
Go to Step 23
Go to Step 24
23
Correct the LRO for each brake rotor that was
determined to have LRO exceeding the
maximum acceptable level. Refer to Brake
Rotor Assembled Lateral Runout
Correction .
Did you complete the operation?
Go to Step 24
-
24
Install or connect components that were
removed or disconnected during diagnosis.
Did you complete the operation?
Disc Brake
System OK
Return to
Symptom Table
-
2008 Chevrolet Silverado 1500
2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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