F12 Stiff brake pedal
- Make
- Fiat
- Model
- Seicento Factory Service Manual
- Year
- 1998–2010
- Section
- Brakes › F12 Stiff brake pedal
DiagnosisF12 Stiff brake pedal
F12 Stiff brake pedal
Pressing the brake pedal, stiffness is noted.
| Step | Validity Operation to be performed | Test results | ||
|---|---|---|---|---|
| OK | ⚠ | 🔧 | ||
| 1 | CHECK WITH DIAGNOSTIC TOOL Check correct operation of brake pedal |
All OK Go to Step 2 |
Problems found Presence of air causing stiffening |
Intervention Eliminate cause of stiffness |
| 2 | CHECK BRAKE BOOSTER VACUUM Check intactness of vacuum pipe, fittings and clips |
All OK Go to Step 3 |
Problems found Faulty fastenings or parts. |
Intervention Restore fastenings or replace faulty details |
| Damaged pipe | Replace vacuum pipe PROCEDURE OP. 3330D24 |
|||
| 3 | CHECK BRAKE BOOSTER Check correct operation of brake booster |
All OK Go to Step 4 |
Problems found Ineffective brake booster |
Intervention Clean valve if greasy or dirty or replace it PROCEDURE OP. 3330D20. If the fault persists, replace the brake booster PROCEDURE OP. 3330D10 |
| 4 | CHECK BRAKES Check intactness of brake caliper pistons and shoe cylinders |
All OK Go to Step 5 |
Problems found Worn or seized cylinder pistons |
Intervention Replace brake calipers PROCEDURE OP. 3310A32 (front) or 3310B34 (rear) or rear brake cylinder PROCEDURE OP. 3320B22 |
| 5 | CHECK CORRECT OPERATION Check the fault is no longer present |
All OK End of test |
Problems found – |
Intervention – |
Parts & tools for this job For 1998 Fiat Seicento
- PARTBrake padsSearch: Fiat Seicento 1998 brake pads
- TOOLBrake bleeder kitSearch: one man brake bleeder kit
- FLUIDBrake fluidSearch: brake fluid
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