TSB Document:

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from GMC for this TSB. Call your local GMC dealer's service department & ask for a copy of TSB# 3328B.

Affected Component: ENGINE AND ENGINE COOLING:ENGINE:DIESEL

Summary

ENGINE RPM SURGE AT 1100 TO 1400 RPM. THIS CONDITION MAY BE NOTICED MORE WHEN TOWING. *TT

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