TSB: 2004 Trailblazer: 063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTR

[07FX4Chick]

[FONT=&quot]Mfg Service Bulletin #: [/FONT][FONT=&quot]510[/FONT][FONT=&quot] [/FONT]
[FONT=&quot] NHTSA Item #: [/FONT][FONT=&quot]10016220[/FONT][FONT=&quot]
Make: GM
Model: TRAILBLAZER
Model Year: 2004

Issue: 2004 SECONDARY AIR INJECTION SYSTEM- IN 6 CYLINDER ENGINE INCORPORATES A NEW AIR PUMP AND AN ELECTRONIC AIR SHUT OFF VALVE.[/FONT]