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AIR pump removal questions.

This is a discussion on AIR pump removal questions. within the External Engine forums, part of the LSx Technical Help Section category; For you guys that have installed headers and removed the AIR pump. First,,,,I noticed both lines coming from the exhaust ...

  1. #1
    Moderator Firebirdjones's Avatar
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    AIR pump removal questions.

    For you guys that have installed headers and removed the AIR pump.

    First,,,,I noticed both lines coming from the exhaust manifolds tee together at the rear of the intake. Using what looks like a vacuum operated switch. The small 1/8 inch vacuum line going to it appears to connect to another electric solenoid.
    Are you removing all this stuff? Or are you guys simply just removing the 2 big hoses and plugging off the vacuum line?

    Second question,,,I also noticed that the SLP air lid on my car has approximately a 1 inch diameter hose coming from the lid and running down to the AIR pump. Since I am removing the pump I assume this hose to the lid also has to go. What are you guys doing about the hole left in the lid? I have to plug this with something. Anything factory I can use? Suggestions?
    Thanks in advance,,,Larry.

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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    I got the air pump turned off at the tuner. I removed all of the hoses that were visible.

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    Member Empatho's Avatar
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    dont you need an air pump to pass the smog test?
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    Moderator Firebirdjones's Avatar
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    No smog checks where we live.

    I can turn my pump off with HPtuners, thats no problem. Just wondering what people are doing with the solenoid junction at the rear of the intake, where both of the exhaust manifold tubes meet. Also wondering what people are doing with the hole that is left in the air lid.

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    Just me Y2KPewterSS's Avatar
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    Quote Originally Posted by Firebirdjones View Post
    For you guys that have installed headers and removed the AIR pump.

    First,,,,I noticed both lines coming from the exhaust manifolds tee together at the rear of the intake. Using what looks like a vacuum operated switch. The small 1/8 inch vacuum line going to it appears to connect to another electric solenoid.
    Are you removing all this stuff? Or are you guys simply just removing the 2 big hoses and plugging off the vacuum line?

    Second question,,,I also noticed that the SLP air lid on my car has approximately a 1 inch diameter hose coming from the lid and running down to the AIR pump. Since I am removing the pump I assume this hose to the lid also has to go. What are you guys doing about the hole left in the lid? I have to plug this with something. Anything factory I can use? Suggestions?
    Thanks in advance,,,Larry.
    Its been a long time since I removed mine Larry, but I believe I pulled that all out, I know I didn't plug any vacuum lines.

    I would check into a local hardware store and see if you can find a rubber grommet to fit the hole in the lid and seal the grommet with an epoxy or something.
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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Quote Originally Posted by Empatho View Post
    dont you need an air pump to pass the smog test?
    Of course I have a smog test, but they can't read codes that are turned off and my brother-in-law doesn't look for emissions equipment

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    Formulatastic yellowv's Avatar
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    I removed everything from mine although mine is a 98' so I don't have the vacuum line in the back or the hose going to the air lid. You will just need to plug both holes.... I said plug both holes

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    I removed the pump and all the tubing and fittings. The pump was the biggest bitch along side the passenger side connection to the manifold.

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    Moderator Firebirdjones's Avatar
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    Thanks to all.

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    Member Ripper415's Avatar
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    Quote Originally Posted by Firebirdjones View Post
    For you guys that have installed headers and removed the AIR pump.

    First,,,,I noticed both lines coming from the exhaust manifolds tee together at the rear of the intake. Using what looks like a vacuum operated switch. The small 1/8 inch vacuum line going to it appears to connect to another electric solenoid.
    Are you removing all this stuff? Or are you guys simply just removing the 2 big hoses and plugging off the vacuum line?.
    i removed everything. it was a bitch and a half to remove the unit on the top back of the engine compt and i ended up ripping my hands up on those stupid plastic push screw things along the bottom of the windshield, then i just took the vacuum line and stuck it onto one of the screws for the coil pack. it fit perfect and no leaks. the car sounds a lot smoother when first started and at idle.

  11. #11
    Junior Member 151LS1's Avatar
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    To plug the hole in my lid I used a nylon cap that I picked up at a hardware store. I believe the size was 3/4".

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