Symptoms - Hydraulic Brakes. Chevrolet Express

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2007 🢒 Express - AWD 🢒 General Information 🢒 Vibration Diagnosis and Correction 🢒 Symptoms - Hydraulic Brakes

Important: The following steps must be completed before using the symptom tables.

Perform the Brake System Vehicle Road Test before using the brake symptom tables in order to duplicate the customer's concern.

Review the system description and operation in order to familiarize yourself with the system functions. Refer to the following:

•	Brake Warning System Description and Operation

•	Hydraulic Brake Component Operation Visual Inspection

•	Disc Brake System Description and Operation

•	Inspect for aftermarket devices which could affect the operation of the Hydraulic Brake System. Refer to Checking Aftermarket Accessories .

•	Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

•	Inspect the brake fluid reservoir for the proper brake fluid level.

•	Inspect the power steering fluid reservoir for the proper power steering fluid level (vehicles with hydraulic power assist braking systems only).

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

•	Brake Warning Indicator Always On

•	Brake Warning Indicator Inoperative

•	Brake Pulsation

•	Brake System Noise

•	Braking Action Uneven - Pulls to One Side

•	Braking Action Uneven - Front to Rear

•	Brake Pedal Excessive Travel

•	Brake Pedal Excessive Effort

•	Brakes Drag

•	Brake System Slow Release

•	Brake Fluid Loss

•	Brakes Self Apply When Turning Steering Wheel