Please read the following Tech Service Bulletin, especially the parenthetical:
Technical - Water in AIR Pump and/or DTC P0410, P0412, P0415, P0416, P0100, P0101, P0102 or DTC 48 (AIR System Disable Procedure) #01-06-04-011
Word for word:In short, GM says nothing about repairing or replacing check valves, or replacing the AIRpump - it only mentions disabling the AIRpump.
The rest of the TSB is instructional.None of the TSB's text mentions anything at all about either replacing any check valves or replacing the AIRpump - only disabling it permanently.
Steps 1-4 prevent the engine from inhaling whatever the AIRpump exhales. It also prevents the AIRpump from doing what it was originally intended to do.
Steps 5-7 PERMANENTLY disables the AIRpump [even before updating the pcm].
[Step 8 goes without saying, duh.]
Step 9 permanently deactivates not only the AIRpump, but also the AIRpump codes.
None of the TSB's pics (which I don't know how to include) show anything except how to separate the AIRpump from the intake, which would also prevent the AIRpump from doing its originally intended job.
Nothing whatsoever about repairing or replacing any check valves.
I generally avoid 'helping' people waste their money, time, energy, material, or space.
Fixing the AIRpump is precisely the kind of waste that I prefer to help people avoid.
That's wrong? Really? No problem.