How to Seafoam?
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  • 2 Post By curls
Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, How to Seafoam? in Cadillac Escalade Forums; I know there's a ton of instructional videos out there, but I am having a hell of a time getting ...
  1. #1
    curls is offline Cadillac Owners Member
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    Question How to Seafoam?

    I know there's a ton of instructional videos out there, but I am having a hell of a time getting mine done. I just got my 2003 EXT and I'm not sure how it's been cared for. It runs a bit rough and the oil definitely needs changing but I was hoping that with all the great talk I've heard about seafoam I could possibly clear up some of the problems. Anyway, low and behold I can't find the brake booster line. The only line that I've seen that runs from right in front of the steering wheel on the firewall runs down to what looks like the power steering fluid. Which is also dirty. I also have no idea how to start taking the plastic off to get to the TB so I can spray it down.

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  3. #2
    Caddydude420 is offline Cadillac Owners Fanatic
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    Re: How to Seafoam?

    I'd like to see the same...

  4. #3
    Silver04 is offline Cadillac Owners Fanatic
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    Re: How to Seafoam?

    I have found this write up pretty comprehensive

    http://www.ls1tech.com/forums/genera...-your-car.html

  5. #4
    oldworld is offline Cadillac Owners Enthusiast
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    Re: How to Seafoam?

    Does it matter how many miles are on the vehicle to be safe?
    same to use on a 50k motor as well as 200k motor??
    THANKS
    HAPPY THANKSGIVING!!!!

  6. #5
    GrippinGrain is offline Cadillac Owners Member
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    Re: How to Seafoam?

    Ive Sea-Foamed all of my vehicles. And ive NEVER used the brake booster line! All you need is a line with good vaccum.

    On my 05' EXT I used the PCV line!

    Just pull the line off the PCV itself. Its pretty simple, Make sure you let it suck up the Sea-Foam slowly.

    You'll be ok if you just follow the basic instructions!

  7. #6
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    bstiffmanofsteel is offline Cadillac Owners Connoisseur
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    Re: How to Seafoam?


  8. #7
    dr_whigham is offline Cadillac Owners Member
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    Re: How to Seafoam?

    Dont forget to grab a can of the deep creep too.

  9. #8
    Rolex's Avatar
    Rolex is offline Super Moderator
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    Re: How to Seafoam?

    If it's idling rough I agree the first thing to do is a new air filter and clean the throttle body.

    If you want to clean carbon from the intake then use the PCV vacuum line (IIRC the driver side valve cover towards the rear) and SLOWLY suck up seafoam into the line.

    Before you change the oil you can dump a can of seafoam into the crankcase to free up any sticky engine parts. Wait 1000 miles and dump the oil, add a quality oil filter, and fill with clean oil.

    You can also add seafoam to the gas tank to clean injectors.

    Seafoam is good stuff. I use it in all my gas engines....and I swear I don't own stock in the company.
    The above post is my 2 cents....nothing more.

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