22 · Diagnostics

Excessive brake pedal free play

Make: Alfa Romeo
Model: GT Factory Service Manual
Year: 2003–2010
Section: Braking system › Excessive brake pedal free play

‹ Prev Brake pedal oscillation Next › Brake pedal hard

Fault diagnosisExcessive brake pedal free play

EXCESSIVE BRAKE PEDAL FREE PLAY

When the brake pedal is depressed, its travel is longer than the normal operating travel.

1	BRAKE PEDAL SOFTNESS CHECK	All OK	Problems met	Operation
		Results of the tests
	Check that the brake pedal is not soft Check brake fluid level Op. Op. 0010T64 BRAKE AND OR CLUTCH FLUID CHECK LEVEL AND TOP UP AS NECESSARY Check that there are no fluid leaks from: connectors, pipes, hoses, brake adjuster, reservoir, wheel cylinders, master cylinder Check that the flexible couplings expand under the braking action. Check that the hole in the brake fluid reservoir is not blocked	Continue to Step 2	Pedal soft	Bleed the air from the system Op. Op. 0010T65 HYDRAULIC BRAKE SYSTEM BLEED AIR
			Fluid missing from reservoir because of leak	Tighten the connectors or replace the part generating the leak, then top up to the medium level Op. Op. 0010T64 BRAKE AND OR CLUTCH FLUID CHECK LEVEL AND TOP UP AS NECESSARY
			Fluid missing, but leak not visible	Continue to Step 2
			Front hoses dilate	Replace hoses
			Hole blocked	Clean hole
2	CHECK ON BRAKE PEDAL	All OK	Problems met	Operation
	Check that the brake pedal does not have two pressure stages and that it returns promptly	Continue to Step 3	The pedal jumps: one chamber is not holding pressure	Replace the brake servo/pump assembly Op. Op. 3330D02 BRAKE SERVO/BRAKE PUMP ASSEMBLY - R R
			The pedal returns after a delay: master cylinder fault.	Replace pump/ servo brake assembly Op. Op. 3330D02 BRAKE SERVO/BRAKE PUMP ASSEMBLY - R R
			The pedal returns after a delay: front caliper fault.	Replace calipers Op. Op. 3310A32 FRONT BRAKE CALLIPERS BOTH R R
			The pedal returns after a delay: rear caliper fault.	Replace calipers Op. Op. 3310B34 REAR BRAKE CALIPERS - R + R - INCLUDES HANDBRAKE ADJUSTMENT AND BLEEDING
3	CHECK ON EFFICIENCY OF HANDBRAKE SELF-ADJUSTER	All OK	Problems met	Operation
	Check the efficiency of the handbrake self-adjuster, by pulling the handbrake	Continue to Step 4	Device faulty	Change the device
4	BRAKE PEDAL SOFTNESS CHECK	All OK	Problems met	Operation
	Check whether the pedal becomes too soft after several braking actions (Vapour lock)	Continue to Step 5	The pedal becomes soft	Change the brake/clutch fluid Op. Op. 0010T62 POWER STEERING FLUID CHECK LEVEL AND TOP UP IF NECESSARY
5	Continue as instructed by the tester	All OK	Problems met	Operation
	Test the vehicle before delivery to the customer, checking that the fault is no longer present The test is essential, as the braking system is a safety feature of the car	End of diagnosis

‹ Prev Brake pedal oscillation Next › Brake pedal hard

Parts & tools for this job For 2003 Alfa Romeo GT

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.