Automotive Technology (Custom)
Automotive Technology (Custom)
6th Edition
ISBN: 9781337495356
Author: ERJAVEC
Publisher: Cengage
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Chapter 9, Problem 6ASRQ

A vehicle is producing a sharp, metallic rapping sound originating in the upper portion of the engine. It is most noticeable during idle. Technician A diagnoses the problem as piston pin knock Technician B says that the problem is most likely a loose crankshaft thrust bearing. Who is correct?

  1. Technician A

  • Technician B
  • Both A and B
  • Neither A nor B
  • Blurred answer
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