P 0410 Secondary AIR injection Pump - Page 2
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, P 0410 Secondary AIR injection Pump in Past Cadillac Vehicle Discussion; There's water in it because the cover's broken. It's fairly likely it will seize now that water's gotten in. If ...
  1. #16
    MoistCabbage's Avatar
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    There's water in it because the cover's broken. It's fairly likely it will seize now that water's gotten in.
    If it's running, there's no electrical problem.

    The problem is either one of the check valves, a vacuum line, or the vacuum switch.

  2. #17
    KamD450's Avatar
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    Quote Originally Posted by MoistCabbage View Post
    There's water in it because the cover's broken. It's fairly likely it will seize now that water's gotten in.
    If it's running, there's no electrical problem.

    The problem is either one of the check valves, a vacuum line, or the vacuum switch.
    So should I just replace the whole pump? Because it seems like the check valve and the whole pump are the same price.

  3. #18
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    The check valves are totally separate from the pump. You need to diagnose the problem before you replace anything.

  4. #19
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    Will do.

  5. #20
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    I installed the pump today, my old one was full of water :S

    What had me confused was the owner before played around with the hose and had it zip tied to the frame hanging around the same area the new designed one is supposed to clip into. Either way it's all good now lets hope this pump holds up I definitely hear the vacuum noise now lol

  6. #21
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    Thumbs up... ill be doing the same real soon.

  7. #22
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    Quote Originally Posted by blackonblacklac00 View Post
    I installed the pump today, my old one was full of water :S

    What had me confused was the owner before played around with the hose and had it zip tied to the frame hanging around the same area the new designed one is supposed to clip into. Either way it's all good now lets hope this pump holds up I definitely hear the vacuum noise now lol
    That's just how they came and why they ingest water and had to be redesigned. I still have that syle and last year my pump was making some scary noises but now it's fine so ill let it go till more water gets in it.

  8. #23
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    Quote Originally Posted by 13ir14314

    That's just how they came and why they ingest water and had to be redesigned. I still have that syle and last year my pump was making some scary noises but now it's fine so ill let it go till more water gets in it.
    The old one had the same looking snorkel on it too with one clip broken just hanging it looked like someone had cut the snorkel off another hose and zip tied it to the hose connected to the pump real butcher job lol

    And finding that hole the resigned one fits into took a while its kinda hidden had pull back the inner wheel well liner to find it.

  9. #24
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    Got a bit of a problem here....


    It rained last night and I realized the vacuum sound got a bit lower. And I had posted a while back that I heard a gargling sound from that area before and I heard it again today I decided to pull the pump out and water came pouring out of it and the gargling sound stopped.....

    How is water getting into it now?!?!

  10. #25
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    Re: P 0410 Secondary AIR injection Pump

    Splash, and maybe - just maybe - water ingestion at pump cycle/test: The most common problem with this type of pump failure. The new intake hose goes up into the engine compartment.

    Are ALL your air deflectors and splash shields in place and tight ?

  11. #26
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    Quote Originally Posted by Submariner409
    Splash, and maybe - just maybe - water ingestion at pump cycle/test: The most common problem with this type of pump failure. The new intake hose goes up into the engine compartment.

    Are ALL your air deflectors and splash shields in place and tight ?
    Yeah the splash shield is tight I have all the clips on its not cracked no where. I even strapped a couple tie wraps around the pump not tight but just to make sure the cover doesn't flap open or anything.

    What I realized is the water is coming in from the hose that runs to the cat...When I unclamped it and tilted the pump water came out only from where that hose connects to the pump.

    How could water be getting in from that hose?

  12. #27
    blackonblacklac00's Avatar
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    Anyone have a idea? Last thing I want is this pump going bad and having to deal with amazon sending it back.

    Any help guys please.

  13. #28
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    Re: P 0410 Secondary AIR injection Pump

    All you can do is drop the lower air deflector and have a look.

  14. #29
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    Quote Originally Posted by Ranger
    All you can do is drop the lower air deflector and have a look.
    Yeah but what I'm trying to figure out water is coming from the other end where ever the fresh air gets pushed to the cat.

    Would it hurt if I cover the pump with some kind of tape around the areas water could get in? Does it need to breathe be able to breath or anything? It's only on for 40 seconds and it sucks air in from the hose. What do you think?

  15. #30
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    Is the intake hose routed correctly?

    Tape won't do anything, there's an O ring on the tube between the tube on the backside if the cover, and the pump.. The seal is made there, not around the edges of the pump.

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