P0410 Secondary AIR

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Cadillac Tech Tips - How to fix it Discussion, P0410 Secondary AIR in Item Specific Cadillac Discussion; I just fixed this problem and wanted to put the info out there. Mine was not the AIR motor, I ...
  1. #1
    87gnturbosix is offline Cadillac Owners Member
    Automobile(s): 2003 Deville
    Join Date
    Jun 2009

    P0410 Secondary AIR

    I just fixed this problem and wanted to put the info out there. Mine was not the AIR motor, I could hear it running every cold start. I checked the solenoid and it was working. I then checked each check valve with a vacuum pump and found the rear one not pulling a vacuum. I plugged the vacuum hose going to the rear check valve and the code went to P1415 (AIR system bank 1). Replaced the valve, no more check engine light.

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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS - 65500 miles, 2014 Explorer XLT FWD
    Join Date
    Feb 2006
    MD Eastern Shore, Kent Island

    Re: P0410 Secondary AIR

    Good catch. Thanks for the feedback.

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