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Cadillac Tech Tips - How to fix it Discussion, How To Clean the Throttle Body in Item Specific Cadillac Discussion; Always be very careful NOT to use stuff like Walmart's carb cleaner, it is VERY VERY rough on parts! It ...
  1. #46
    N0DIH's Avatar
    N0DIH is offline Cadillac Owners Master
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    Re: How To Clean the Throttle Body

    Always be very careful NOT to use stuff like Walmart's carb cleaner, it is VERY VERY rough on parts! It will strip any coatings off in a flash. It will make a Q-Jet silver in seconds! It isn't supposed to be!

  2. #47
    Talamant3z's Avatar
    Talamant3z is offline Cadillac Owners Enthusiast
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    Re: How To Clean the Throttle Body

    i used berry,am b-12 chemtool carburetor choke & throttle body cleaner did a good job i didnt find any just throttle body cleaner so this was the next best thing




  3. #48
    ga_etc's Avatar
    ga_etc is offline Cadillac Owners Connoisseur
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    Re: How To Clean the Throttle Body

    I just cleaned mine a little while ago. Mine looked worse than Talamant3z's. It was solid black. I scrubbed it with an old toothbrush and STP Throttle Body and Carb cleaner. I guess that's what happens when the car is 10 years old and has 112K on it and it's never been cleaned. Great post.

  4. #49
    SL1CK's Avatar
    SL1CK is offline Cadillac Owners Enthusiast
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    Re: How To Clean the Throttle Body

    I'll probably be posting new pics soon, I have a real camera now.

  5. #50
    Jamie Z is offline Cadillac Owners Fanatic
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    Re: How To Clean the Throttle Body

    Thanks for this great write-up. I probably would have never figured out my sticky gas pedal. My symptoms weren't like most others described here. I just had a slight hesitation in the pedal from a start.

    I didn't know if cleaning the throttle body would be the fix. Indeed, my throttle body wasn't all that dirty. A few little touches of black stuff. I cleaned it up. Sticky gas pedal is gone.

    Perfect.

    Thanks.

    Jamie

  6. #51
    Caddy465 is offline Cadillac Owners Member
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    Re: How To Clean the Throttle Body

    This has got to be one of the most helpful threads on this site! I am NOT a mechanical person and I did this the other day following the instructions. The setup on my Seville was a little different. The MAF screen was on the other end of the hose (or whatever it's called) next to the air filter rather than next to the TB so I didn't have to remove that. I used my wife's toothbrush (kidding) to clean it and then wrapped a rag around the toothbrush and got it in there as far as I could. It was solid black and worse than Talamant3z's, but after I cleaned it, it looked just as good as his. I feel pretty good about myself now.

  7. #52
    Windrider is offline Cadillac Owners Member
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    Re: How To Clean the Throttle Body

    When I look at this thread the pictures don't display. The setting on my browser (Internet Explorer) has the "show pictures" option checked in internet options.

    What else should I do?

    thanks

    Windrider

  8. #53
    mart88 is offline Cadillac Owners Member
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    Re: How To Clean the Throttle Body

    Thanks for the tips!

  9. #54
    Ranger's Avatar
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    Re: How To Clean the Throttle Body

    Quote Originally Posted by Windrider View Post
    When I look at this thread the pictures don't display. The setting on my browser (Internet Explorer) has the "show pictures" option checked in internet options.

    What else should I do?

    thanks

    Windrider
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  10. #55
    danbenton is offline Cadillac Owners Member
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    Re: How To Clean the Throttle Body

    This guide was excellent... drove a few blocks to "blow out" the dirty air, and it seems to have done what it was supposed to.

    Thank you for the edited photos and guidance! More money in my pocket thanks to this site.

  11. #56
    TEXASROCKS is offline Cadillac Owners Member
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    Re: How To Clean the Throttle Body

    I have a 98 Deville with 165,000 miles on it and i checked mine and it is freakin bonkers dirty...like i'm talking retarded! I cleaned as much as i could but it felt like a losing battle! Should i be taking the intake manifold off to clean it, or take the TB off and clean it more effectively? I stuck my finger as far back as i could and scrapped the side and a 1/2 inch of gunk came out on my finger! After cleaning the butterfly and all around it...it did seem to improve responsiveness, but just wondering how much farther i want to take this? Or if its even worth it??

  12. #57
    Rolex's Avatar
    Rolex is offline Super Moderator
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    Re: How To Clean the Throttle Body

    Taking off the TB would be easier then removing the intake manifold by a dang site. Removing the TB may be a better option if you believe there are still areas you can't see that need to be cleaned.

    I've used amsoil Power Foam cleaner on a 17 year old truck before with really good results. It's just a thought. It's one of the few amsoil products I've used, and I had good results from it. I cleaned what I cold see with carb/tb cleaner and used the foam to clean the rest.
    The above post is my 2 cents....nothing more.

  13. #58
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
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    Re: How To Clean the Throttle Body

    Trying to clean the inside of a Northstar intake manifold, especially a 2000+, would be an exercise in futility. Better to call Jake and buy/find a new one - the frustration prevention would be worth the price.

    If you remove the manifold you can clean the first intake tunnel, but the lower box and runners are impossible. It's probably worth the effort if the TB was really disgusting.

  14. #59
    Ranger's Avatar
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    Re: How To Clean the Throttle Body

    No need to clean the manifold. That's akin to cleaning the exhaust system. All it needs is the throttle plate and the TB bore as far in as you can reach.

  15. #60
    TEXASROCKS is offline Cadillac Owners Member
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    Re: How To Clean the Throttle Body

    Ya...not gonna attempt to remove the manifold....took off the TB and the EGR lines. The EGR lines and ports on the manifold were completely clogged!!! Removed them, soaked them...so we'll see how that works out. Its bonkers how much carbon and sludge is in there! Could there be a problem else where that is causing this? Sorry if these sound like dumb questions...not a expert on these matters hehe

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