bad headgasket
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 13 of 13
Northstar Engines and System Technical Discussion Discussion, bad headgasket in Cadillac Engine Technical Discussion; i have 1994 sts how do i know if i have a bad head gasket. what should i be lookin ...
  1. #1
    Moezy is offline Cadillac Owners Fanatic
    Automobile(s): Cadillac
    Join Date
    Mar 2008
    Posts
    103

    bad headgasket

    i have 1994 sts how do i know if i have a bad head gasket. what should i be lookin for

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    STSS is offline Cadillac Owners Enthusiast
    Automobile(s): '03 STS 122K, '01 STS 161K - 3/3/11
    Join Date
    Apr 2008
    Location
    Grafton, Ohio
    Age
    30
    Posts
    671

    Re: bad headgasket

    Go to napa... get a block test kit... about $50.... They were available cheaper online.... not sure if they are still available though.

  4. #3
    Playdrv4me's Avatar
    Playdrv4me is offline Cadillac Owners 10000+ Posts
    Automobile(s): 1992 STS / 2005 MB G500 / 2008 Mini Cooper Clubman S
    Join Date
    Nov 2003
    Location
    TPA / STL / ICT / SAT
    Posts
    11,684

    Re: bad headgasket

    Not sure what brings up the question. But STSS is right, the block test kit is the BEST way to tell. However you'll also have various symptoms depending on the progression of the problem. In the early stages the most notable symptom will be inexplicable coolant loss. First every couple of months, then every few weeks, and then every few days. Sweet smelling steam from the tailpipes is another sign, and finally overheating. First under loads, and eventually all the time.

  5. #4
    Moezy is offline Cadillac Owners Fanatic
    Automobile(s): Cadillac
    Join Date
    Mar 2008
    Posts
    103

    Re: bad headgasket

    i have a feeling coolant is going into the oil does that mean headgasket is blown

  6. #5
    Ranger's Avatar
    Ranger is online now Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Location
    Woodstock Ill.
    Age
    66
    Posts
    73,343

    Re: bad headgasket

    Northstars don't usually do that, but yes that is what that means. What doe you mean by "I have a feeling"? It should be easy to tell.

  7. #6
    Moezy is offline Cadillac Owners Fanatic
    Automobile(s): Cadillac
    Join Date
    Mar 2008
    Posts
    103

    Re: bad headgasket

    i checked my oil and it is full usually i have to add oil and i havent added oil for a while somthing is not right

  8. #7
    Ranger's Avatar
    Ranger is online now Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Location
    Woodstock Ill.
    Age
    66
    Posts
    73,343

    Re: bad headgasket

    Is the oil creamy looking?

  9. #8
    Moezy is offline Cadillac Owners Fanatic
    Automobile(s): Cadillac
    Join Date
    Mar 2008
    Posts
    103

    Re: bad headgasket

    like a caramel colour

  10. #9
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    44,563

    Re: bad headgasket

    You got BIG trouble.

  11. #10
    Mark C's Avatar
    Mark C is offline Cadillac Owners Connoisseur
    Automobile(s): 1997 Seville STS, 2000 Seville STS
    Join Date
    Jul 2007
    Age
    56
    Posts
    1,674

    Re: bad headgasket

    Check you oil cooler in the radiator if you have one, thats the most likely place for oil to enter the water, and vis versa. I think the only way to get water into your oil short of a really gross head gasket failure (which would have your exhaust pipes puffing white smoke like a freight train) is to have a cracked block, and/or head. If its not puffing smoke, and overheating its probably not coming from a head gasket problem.

  12. #11
    Ranger's Avatar
    Ranger is online now Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Location
    Woodstock Ill.
    Age
    66
    Posts
    73,343

    Re: bad headgasket

    Quote Originally Posted by submariner409 View Post
    You got BIG trouble.

  13. #12
    97EldoCoupe's Avatar
    97EldoCoupe is offline U.S. Patent #8,740,532 - www.studkit.com
    Automobile(s): 97 ETC, 04 Bonneville GXP, 2010 Sierra SLT crew cab /4x4
    Join Date
    Mar 2007
    Location
    London, Ontario
    Age
    28
    Posts
    2,456

    Re: bad headgasket

    The engine may still be OK. Im sure you all have seen the thread where I posted the pics of almost pure coolant in the engine. Amazingly the bearings seem to stay good in these, even with that milkshake mix. But stop driving it, stop running it, stop doing anything with it and fix it ASAP.

    The last one that I worked on had a cracked block. Same milkshake mix. It also smoked white (coolant) like you would not believe.

    Don't give up on it just because of the milkshake mix. If you don't plan on fixing it right away, then drain the oil & coolant before you start it again. Fill the engine with about 7 quarts of good quality oil, and have it running for a couple of minutes until this fresh oil cycles around, but before the engine has a chance to heat up completely. Remember, now you have drained the cooling system.


    Need parts for your Northstar Engine? www.northstarperformance.com

    Jake Wiebe, developer of the SureGrip™ Cylinder Head Stud Kit

  14. #13
    97EldoCoupe's Avatar
    97EldoCoupe is offline U.S. Patent #8,740,532 - www.studkit.com
    Automobile(s): 97 ETC, 04 Bonneville GXP, 2010 Sierra SLT crew cab /4x4
    Join Date
    Mar 2007
    Location
    London, Ontario
    Age
    28
    Posts
    2,456

    Re: bad headgasket

    But as everyone else said- it could be just the radiator end tank, if you have the oil cooler.


    Need parts for your Northstar Engine? www.northstarperformance.com

    Jake Wiebe, developer of the SureGrip™ Cylinder Head Stud Kit

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting