Warning:Refer toAssistant Driving Warning.
Interior windnoise is not heard when the window is lowered.Interior windnoise is caused by the air leaving the inside of thevehicle through a seal or a seam.
Tape over the relief valves to cause added air pressurewithin the vehicle.Test drive the vehicle and listen for windnoise or awhistle.Pull the vehicle over and make the temporary repairs usingmasking tape. If you cannot determine the source of the windnoise,perform one or more of the following diagnostic tests:Air Pressure TestSoap Suds or Bubble TestTracing Powder or Chalk Test
Exterior Windnoise
Checking Aftermarket AccessoriesPiston, Connecting Rod, and Bearing Cleaning and Inspection Engine Block Cylinder Block Piston Assembly
Cleaning ProcedureNote:DO NOT wire brush any part of the piston.Clean the piston skirts and the pins with a cleaningsolvent.Clean the piston ring grooves with a groove cleaner. Ensurethat the oil ring holes and slots are clean.Warning:Refer toSafety Glasses Warning.Dry the piston with compressed air ...