Pinpoint Test H: Power Steering Pump / Steering Rack Noise - Noise Specific Diagnostics (Belt Squeal)

1. Ascertain the specific type of noise present in the power steering system (see glossary of noise terms above)

Is the noise belt squeal?

• Yes: GO to  H2.
• No  : GO to PINPOINT TEST I .

1. Check for signs of fluid leakage on to the power steering pump drive belt

Is there signs of fluid on the power steering pump drive belt?

• Yes: GO to  H3.
• No: GO to  H4.

1. Identify the type of fluid that has leaked on to the power steering pump drive belt

Is it power steering fluid?

• Yes  : First, work through the power steering system fluid leak pinpoint tests. GO to PINPOINT TEST F ., then replace the power steering pump drive belt, check and adjust the drive belt alignment as required

  Check again for power steering system noise. If noise is rectified, perform final checks for steering system noise. GO to PINPOINT TEST J .

  If noise is still evident, GO to  H4.

• No  : Clean/remove the leaked fluid from the power steering pump drive belt

  Identify any other sources of fluid leaks and rectify leaks as required

  Check again for power steering system noise. If noise is rectified, perform final checks for steering system noise GO to PINPOINT TEST J .

  If noise is still evident, GO to  H4.

1. Check the integrity of the power steering pump drive belt

Is the power steering pump drive belt damaged, frayed or glazed?

• Yes  : Replace the power steering pump drive belt, check and adjust the drive belt alignment as required

  Check again for power steering system noise. If noise is rectified, perform final checks for steering system noise GO to PINPOINT TEST J .

  If noise is still evident, GO to PINPOINT TEST I .

• No  : The noise issue is not belt squeal, for further diagnostics GO to PINPOINT TEST I .