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Cadillac DTS Forum - 2006 through 2012 Discussion, check your intake bolts! in Past Cadillac Vehicle Discussion; @ Superjim is there a diagram somewhere so I can find the senser. is it under the middle bottom steering ...
  1. #16
    fubar123 is offline Cadillac Owners Member
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    Re: check your intake bolts!

    @ Superjim is there a diagram somewhere so I can find the senser. is it under the middle bottom steering wheel column. under the knee bolster where i installed the clip.

  2. #17
    billbill1 is offline Cadillac Owners Member
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    Re: check your intake bolts!

    Thanks big greg
    I missed your post on this trouble, earlyer , glad it came up again.
    Checked intake bolts today, all were loose, lucky that intake is under vacuum, it
    should of been rattling.
    Has anyone thought of using LocTite, on the bolts, the light duty Blue, would hold
    without, to much force? LocTite should be the perfect solution to this trouble.
    Need some suggestions as to what type.
    What are the bolts threaded into, the Head?
    My Torque wrench's low end is 100 in-lbs, had to fake it for 89 in-lbs.

  3. #18
    Eddie39's Avatar
    Eddie39 is offline Cadillac Owners Fanatic
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    Re: check your intake bolts!

    I can't imagine these bolts are easy to get too. Are there items on the engine that need to be removed first?

  4. #19
    stormnn's Avatar
    stormnn is offline Cadillac Owners Fanatic
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    Re: check your intake bolts!

    Just pop off the plastic engine cover & the heads of the bolts are right there under the fuel rail. I used a 10m deep socket to check mine. I think it was 5 on each side.

  5. #20
    estar is offline Cadillac Owners Member
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    Re: check your intake bolts!

    How do I remove the engine cover on my 2010? My 2000 was held in place by 4 bolts and was very easy to remove, is the 2010 somehow pressed in place?

  6. #21
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    Just pull it up. There are 4 pop retainers underneath.

  7. #22
    estar is offline Cadillac Owners Member
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    Re: check your intake bolts!

    Thanks Moist Cabbage, I thought it must be something simple, I did try to pull it up and it didn't seem to give any, will try again and apply more pressure.

  8. #23
    danog is offline Cadillac Owners Fanatic
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    Re: check your intake bolts!

     1. Grasp the intake manifold sight shield cover at the left side, lift up in order to disengage the cover from the ball stud.
     2. Grasp the intake manifold sight shield cover at the right side, lift up in order to disengage the cover from the ball stud.
     3. Remove the intake manifold sight shield cover from under the tab on the secondary air injection (AIR) check valve bracket.
     4. Remove the intake manifold sight shield cover.

  9. #24
    estar is offline Cadillac Owners Member
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    Re: check your intake bolts!

    Checked my intake bolts today and found half of them very loose. My DTS has 42,000 miles on it. I will check them at least yearly from now on. If they are loose at the next check I will install star washers. Thanks guys for the heads up info on this problem.

  10. #25
    Cadillac Cust Svc's Avatar
    Cadillac Cust Svc is offline Cadillac Customer Service
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    Re: check your intake bolts!

    Quote Originally Posted by estar View Post
    Checked my intake bolts today and found half of them very loose. My DTS has 42,000 miles on it. I will check them at least yearly from now on. If they are loose at the next check I will install star washers. Thanks guys for the heads up info on this problem.
    Hello estar,

    Thank you for providing this information. I am glad you were able to check your intake bolts and found they were loose. I am sorry for any inconvenience this caused for you. If additional concerns or questions arise, please contact us via private message so we can assist.

    Regards,

    Laura M.
    Cadillac Customer Care

  11. #26
    billbill1 is offline Cadillac Owners Member
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    Re: check your intake bolts!

    Hi Customer Care
    I haven't had a comment on the use of Loc Tite, with this problem.
    I would think this would be a good place, to insert some Engineering
    Expertise. This "TROUBLE" should of had a Loc Tite "FIX", long ago.

  12. #27
    Eddie39's Avatar
    Eddie39 is offline Cadillac Owners Fanatic
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    Re: check your intake bolts!

    Quote Originally Posted by danog View Post
     1. Grasp the intake manifold sight shield cover at the left side, lift up in order to disengage the cover from the ball stud.
     2. Grasp the intake manifold sight shield cover at the right side, lift up in order to disengage the cover from the ball stud.
     3. Remove the intake manifold sight shield cover from under the tab on the secondary air injection (AIR) check valve bracket.
     4. Remove the intake manifold sight shield cover.
    Danog,

    Is there a specified torque for manifold bolts?

  13. #28
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    89 inch-lbs.

  14. #29
    Eddie39's Avatar
    Eddie39 is offline Cadillac Owners Fanatic
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    Re: check your intake bolts!

    I see it in post #2

    89 IN-LBS/7.5 FT-LBS.

  15. #30
    TLC
    TLC is offline Cadillac Owners Member
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    Re: check your intake bolts!

    Went and checked mine last weekend. 3 were loose, one was backed out like half way and another backed out a few turns. Not sure that I see a difference in performance but maybe my starts are smoother now.

    Anyone know how/why this happens. I'm guessing from the expanding and contracting of the engine and components due to heat.

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