BrakesBraking Action Uneven - Front to Rear
Braking Action Uneven - Front to Rear
Test Description
The number below refer to the step number on the diagnostic
table:
4 Suspension components
that are not operating properly may cause a disturbance to the
vehicle during application of the brake system.
Step
|
Action
|
Yes
|
No
|
DEFINITION: Braking action or stopping force sensitive or grabbing
and/or more pronounced at the front or at the rear axle. Sensitive
or grabbing brakes: Excessive brake jump-in force relative to brake
pedal input.
|
1
|
Were you sent here from the Hydraulic Brake Symptom table?
|
Go to Step 2
|
-
|
2
|
|
1. |
Inspect the hydraulic brake system for the
following conditions. |
| • |
Improper operation of wheel cylinder pistons, if
equipped |
| • |
Improper operation of caliper pistons |
| • |
Kinked, pinched or damaged brake pipe or flexible
brake hose |
| • |
Improperly functioning proportioning valve, if
equipped |
| • |
Improper operation of dynamic rear proportioning
(DRP) system, if equipped |
Did you find and correct a condition?
|
Go to Step 6
|
Go to Step 3
|
3
|
|
1. |
Inspect the disc brake system for the following
conditions. |
| • |
Distorted, cracked or damaged linings |
| • |
Excessively worn linings |
| • |
Damaged or excessively worn caliper hardware
and/or lining hardware |
| • |
Hard spots, heat checks, blueing discoloration of
rotor friction surfaces |
| • |
Glazed rotor friction surfaces |
Did you find and correct a condition?
|
Go to Step 6
|
-
|
4
|
|
1. |
Inspect the suspension system for the following
conditions. |
| • |
Loose suspension component connections |
| • |
Excessively worn or damaged suspension
components |
|
2. |
Adjust, repair or replace components as
necessary. |
Did you find and correct a condition?
|
Go to Step 6
|
Go to Step 5
|
5
|
|
1. |
Inspect the brake assist system for the following
conditions. |
| • |
Binding, bent or damaged pedal pushrod, pedal, or
pedal bracket |
| • |
Damaged or improperly operating vacuum booster, if
equipped |
| • |
Damaged or improperly operating hydraulic booster,
if equipped |
Did you find and correct a condition?
|
Go to Step 6
|
-
|
6
|
|
1. |
Install or connect components that were removed or
disconnected during diagnosis. |
Is the condition still present?
|
Go to Step 2
|
System OK
|
|
| |
|
|
07 Brakes
