Buick TSB #PIP3535B
2012 Buick LaCrosse
TSB Document:
Affected Component: EQUIPMENT ADAPTIVE/MOBILITY
- Summary
- This Preliminary Information communication informs dealer technicians of a potential whining noise that can occur after servicing the water pump, water pump chain or cylinder head without use of the water pump sprocket holding tool. Dealers are advised this condition is the result of a water pump chain tensioner ratcheting out. The dealer is directed to follow service information to reset the water pump chain tensioner to correct.
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