Question about 2004 Buick Rainier
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Posted on Jan 02, 2017
P0410 Secondary Air Injection System Malfunction
I am very familiar with this failure code, you are going to have to replace the secondary air injection pump, it has a failed motor in it, the code really indicates no airflow from the pump when commanded to be on.
Posted on May 28, 2009
Check the fuse before you change the pump. I spend over $300 on a new pump and all needed was a $15 fuse. I think what happens is water gets in the pump and freezes in winter. The pump tries to turn on but is frozen in ice and blows the fuse rendering the whole system useless. Easy way to check is to diconnect a hose from the pump and switch the air conditioning fuse with AIR fuse and start the truck cold. They share the same fuse type. Trust me you know if the pump kicks on, lots of air comes out!
Posted on Jul 08, 2009
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