Brake fluid leaks
- Make
- Fiat
- Model
- Grande Punto Factory Service Manual
- Year
- 2005–2012
- Section
- Consumption /leaks/ wear › Brake fluid leaks
BRAKE FLUID LEAKS
A brake fluid leak can be seen
| Results of the tests | ||||
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
|---|---|---|---|---|
First of all check whether the problem is accompanied by poor braking action Visually check the level of the brake fluid in the reservoir Op. 0010T64 BRAKE AND/OR CLUTCH FLUID CHECK LEVEL AND TOP UP AS NECESSARY | Move on to Step 1 | 1. Poor braking action detected 2. Insufficient brake fluid level | 1. Proceed as instructed See table F001 POOR BRAKING ACTION 2. Restore the correct level and carry out a road test. Op. 0010T64 BRAKE AND/OR CLUTCH FLUID CHECK LEVEL AND TOP UP AS NECESSARY If the fault persists, move on to Step 1 | |
| 1 | RESERVOIR LEAK CHECK | All OK | Problems encountered | Operation |
For 1.9 JTD; Check visually for fluid leaks from the reservoir and pipes | Move on to Step 2 | Leaks from tank | Replace the tank | |
| 1 | CHECK | All OK | Problems encountered | Operation |
1.2 8v, 1.4 8v, 1.3 JTD; Check visually for fluid leaks from the reservoir and pipes | Move on to Step 5 | Leaks from tank | Replace the tank | |
| 2 | PUMP LEAK CHECK | All OK | Problems encountered | Operation |
For 1.9 JTD; Visually check for fluid leaks from the brake pump and fittings | Move on to Step 3 | 1. Leaks from pump/ABS control unit area fittings 2. Leaks from pump | 1. Tighten the connectors or replace the damaged parts 2. Replace the brake servo assembly | |
| 3 | FLEXIBLE PIPES CHECK | All OK | Problems encountered | Operation |
For 1.9 JTD; Visually check for leaks from hoses | Move on to Step 4 | 1. Leaks from fittings or deterioration of hose to front brakes 2. Leaks from fittings or deterioration of hose to rear brakes | 1. Tighten the fittings or replace the pipe Op. 3340B10 HOSE TO L/H OR R/H FRONT BRAKES (ONE) - R+R 2. Tighten the fittings or replace the pipe | |
| 4 | RIGID PIPE CHECK | All OK | Problems encountered | Operation |
For 1.9 JTD; Visually check for leaks from rigid underbody pipes | End of diagnosis | Leaks from fittings or damage to rigid pipes | Tighten the fittings or replace the rigid pipes | |
| 5 | CHECK FOR OIL LEAKS FROM THE CONNECTION | All OK | Problems encountered | Operation |
For 1.2 8v, 1.4 8v, 1.3 JTD; Position the vehicle on a two column lift and raise it. Check that the oil leak is not from the connection | Move on to Step 9 | Presence of oil leak from the connection | Move on to Step 6 | |
| 6 | CHECK BUNDY PIPE COUPLING | All OK | Problems encountered | Operation |
For 1.2 8v, 1.4 8v, 1.3 JTD; Check that the oil leak is not from the Bundy pipe coupling | End of diagnosis | Oil leaks | Move on to Step 7 | |
| 7 | REMOVING BUNDY PIPE FROM THE CYLINDER | All OK | Problems encountered | Operation |
For 1.2 8v, 1.4 8v, 1.3 JTD; After removing the pipe from the cylinder, check visually whether one or more of the following conditions are not compliant: - end of Bundy pipe deformed; - scoring; - breaks | Move on to Step 8 | 1. End of Bundy pipe coupling deformed 2. Scoring 3. Breaks | 1. Replace Bundy pipe coupling 2. Replace Bundy pipe coupling 3. Replace Bundy pipe coupling | |
| 8 | CHECK FOR NON-COMPLIANCE OF THE SEALING CONE AND/OR THREADS | All OK | Problems encountered | Operation |
For 1.2 8v, 1.4 8v, 1.3 JTD; Check visually for non-compliance of the sealing cone and/or thread | Move on to Step 9 | Presence of non-compliance on sealing cone and/or thread | Replacing the cylinder Op. 3320B20 REAR BRAKE SHOE CYLINDER (ONE) LEFT OR RIGHT - REPLACE. | |
| 9 | CHECKS ON DRUM | All OK | Problems encountered | Operation |
For 1.2 8v, 1.4 8v, 1.3 JTD; Remove the drum and check for oil: - on the plate or other component; - whether the cylinder gaiters are wet | End of diagnosis | 1. Presence of oil on the plate or on another component 2. Presence of oil on the cylinder gaiters | 1. Replacing the cylinder Op. 3320B20 REAR BRAKE SHOE CYLINDER (ONE) LEFT OR RIGHT - REPLACE. 2. Clean and wash the parts and press the brake pedal to detect the source of the leak, apply a containment ring to the shoes to prevent the pistons from scuffing | |
Parts & tools for this job For 2005 Fiat Grande Punto
- TOOLBrake bleeder kitSearch: one man brake bleeder kit
- FLUIDBrake fluidSearch: brake fluid
- TOOLBrake line flaring toolSearch: brake line flaring tool
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