Pinpoint Test AE-2: Noise - During Braking

Normal Operation and Fault Conditions 

Description 

• If the noise occurs while braking AND during tip-in or tip-out, this is not typically a steering gear related noise.
• Noises when braking involve parts which move during braking.

Pinpoint Test Applicability 

• This test applies to the following diagnostic concerns:
• Noises occurring during braking

This test DOES NOT apply to any other DTC or symptom.

Diagnostic Strategy 

• To visually check for obvious parts that may be damaged within parts that are in motion during this drive event, followed up by Chassis Ears usage to further define where the noise source may be while steering (turning the steering wheel) during this drive event.

Pinpoint Test Purpose 

• To search for the components contributing to steering noises during this drive event and determine if the resulting components are defective or the noise is a normally occurring noise for this vehicle type.

Possible Sources 

• Caliper anchors, calipers or brake pads
• Top strut mount or bearings (if equipped)
• Lower control arm attachment to sub frame bushings and bolts
• Engine to chassis wiring, tubes or brackets (loose or out of position)
• Exhaust isolators and brackets
• Subframe mounts
• Powertrain mounts or engine roll restrictor mounts
• Exhaust isolators or brackets
• Steering shaft slip joints

Pinpoint Tests AE: Front End Noise - During Acceleration (Tip-In) Or Deceleration (Tip-Out)