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TSB Document:

Affected Component: EQUIPMENT

Summary
This Preliminary Information communication provides information to the technician about vehicle that may have a Service Engine Soon Malfunction Indicator Lamp on, running rough, or lack of power about 4000 Revolutions per minute. Technician will need to follow the owner's manual for proper engine oil filling procedures. For vehicles with 7.0L engine Regular Production Option Code LS7 models, also review the latest version of 05-06-01-032. Technician should also perform the Crankcase Ventilation System Inspection/Diagnosis. If the vehicle is equipped with an oil tank, ensure that the semi-fresh and fresh PCV tubes are installed correctly. Also the technician should clean any excessive oil from the air intake system and inspect the hydrocarbon absorber in the air intake snorkel.

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Date Published
JUL 22, 2014
NHTSA TSB #
10112121
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