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2002 Cadillac DeVille Question: Northstar Head Gasket Issue?

 

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Laoboi, Houston, TX, February 08, 2010, 17:59
 Rookie

I recently let my 1998 Cadillac Deville go back to the dealership because of a blown head gasket. (98 had the highest amount of head gasket failures than any other Northstar) I did an extensive amount of research and discovered 96-99 Northstar engines have a high rate of head gasket failure. It seems that Cadillac’s are not what they use to be because of this Northstar engine. My question is: Is there any particular year model Northstar that doesn’t have head gasket problems? I’m thinking about purchasing a 2002 Deville, but I’m terrified because I might have this same problem all over again? Any advice on what I should do??

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  • Medium-star Best Answer
    Oakman February 10, 2010, 13:08
     Master

    Unfortunately Northstar engine head gasket failures are not limited to the 96-99 model years. Those years are the worst but form my experience just about all Northstar engines are susceptible to head gaskets failures, most commonly after the engine has been overheated due to some other cooling system failure.

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    bertT, June 14, 2013, 14:17
     Rookie

    6-14-13 UPDATE INFORMATION ON BAR'S HEAD GASKET FIX, PRODUCT PATENT REJECTED
    The application for Bar's Head Gasket Fix # 1111 was rejected and trademark not accepted ON AUGUST 28, 2009. Bar's Patent was not approved
    Bar’s tried hard to get a patent approval for 3 years, 2007, 2008 and 2009, but was always rejected. Bar’s business poor credibility and unproven facts on product reliability was a big factor on patent rejection and not approved
    Bar’s is not having good credibility and got continuous patent rejections

    BAR'S PRODUCTS INC, HOLLY, MI 48442, BAR'S HEAD GASKET FIX IS A PRODUCT THAT SHOULD NOT BE SELLING ANYWHERE AND BE REMOVED FROM AUTO STORES SHELVES
    After I was duped by Bar's Product , I realized by looking at many people complaints, that people selling used cars on the streets as well as on Craigslist, welcome this product to sell junk cars to people that needed a car to go to work, but buyers are not aware of buying a junk car with band-aid engine that will fail at any time soon, costing thousands of dollars in engine repairs
    This big band-aid of BAR'S HEAD GASKET FIX is ready to break at any time and causing big damages to engine by overheated and cooling system damages
    Warning on product failure by Bar's on video
    The April 2013, on YOUTUBE and VOYAGE a video recorded was posted by FRED MANNIX.
    Fred said on the video, “watch on the temperature gauge”
    Fred Mannix, mentioned it to late to save his ass, the high temperature rising for adding the Bar's product, well known problem by Bar's Products that leads to engine damage
    It is a crime, committed by Bar's and those crooks in the car business, buying used cars at the auction with permanent engine damaged and selling at high prices, after Bar's was added
    Also there are many consumers that got duped like me by fakes Bar's Products Reviews posted on its WEBSITE telling the people the magic of it product and that never failed on any car
    It is a criminal activity done by Bar's Products INC manufactured of Bar's Head Gasket Fix to rip off people

    Bar's Head Gasket Fix was rejected and trademark not accepted ON AUGUST 28, 2009
    Bar's Products Inc, MI 48442, had no merits to obtain a US PATENT and US TRADEMARK REGISTRATION.
    Its arguments were not solid enough to prove anything on the product known as BAR'S PERMANENT HEAD GASKET FIX # 1111 and how the product will fix or repair anything at all

    UNITED STATES PATENT AND TRADEMARK OFFICE
    ________________________________________
    Commissioner for Trademarks
    P.O. Box 1451
    Alexandria, VA 22313-1451

    Aug 28, 2009
    NOTICE OF ABANDONMENT
    ________________________________________
    SERIAL NUMBER:
    MARK:
    APPLICANT: 77/261335
    HEAD GASKET FIX
    Bar's Products, Inc.
    ________________________________________

    THE ABOVE IDENTIFIED TRADEMARK APPLICATION WAS ABANDONED IN FULL ON 07/30/2009 FOR THE FOLLOWING REASON:

    NO RESPONSE TO THE OFFICE ACTION MAILED ON 01/30/2009 WAS RECEIVED IN THE UNITED STATES PATENT AND TRADEMARK OFFICE (USPTO) WITHIN THE SIX-MONTH RESPONSE PERIOD. (15 U.S.C. 1062(b); TRADEMARK RULE 2.65(a)).

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  • Answer #2

    Visitor, March 24, 2010, 10:46

    Cadillac fixed this problem going into the new millennium. They put ls1 bolts, which are much longer than the old ones. What would happen is that the smaller bolts would shimmy loose, warp the threads, and there you have your head gasket problem. But as far as buying another one, go with a 95 or lower, or a 2000 and higher.

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  • Answer #3

    Visitor, March 24, 2010, 10:52

    Cadillac service bulletin 01-06-01-011 deals with oil burning on 1996-'99 Northstar V8s. The cure, says Cadillac, is to do a ring cleaning procedure (seems those long oil change intervals weren't such a good idea after all). Cadillac recommends using GM cleaning kit (P/N 12378545) and Kent-Moore J-45076 induction/evacuation tool to do the job. The cleaner is added into the cylinders through the spark plug holes and allowed to soak the rings for two hours. The cleaner and dissolved crud is then vacuumed out of the cylinders through the spark plug holes, followed by an oil change. Cleaning the throttle body and EGR valve is also recommended.

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    roby4help, May 01, 2013, 11:36
     Rookie

    DUPED BY BAR'S PRODUCTS INC ON NORTHSTAR ENGINE HEAD GASKET FIX REPAIR
    I want to crack down on con artist like Bar’s Products Inc, Holly MI and its claims without evidence on Bar’s Permanent Head Gasket Fix that turned out to be crap that followed to costly repairs
    It is like closing your eyes and writing prescription without having any knowledge on whom is going to the patient
    That’s apply to BAR’S PRODUCTS INC, Holly, Michigan 48442
    BAR'S PERMANENT HEAD GASKET FIX THE SHORT AND EASY WAY TO DAMAGE YOUR ENGINE AND CLOG EVERYTHING BEYOND REPAIR - that gang of evil people keep posting fakes and fabricated reviews all over the internet

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  • Answer #4

    Visitor, August 08, 2010, 10:46

    I have never heard of this problem being fixed. I have read that Cadillac is planning to discontinue this engine. I have also read that the thread pitch was changed in 2004.
    I had a 93 STS go out from under me like this at 100K. I know what you are feeling, I loved this car and loved driving it, but am afraid to trust a Northstar Cadillac again.

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    Visitor, April 19, 2012, 18:52
     Rookie

    They changed the pitch in 2000. They also changed the thread pitch in 2000. Between both things, the head gaskets from 2000 model years and on are at least average, but still may have issues occasionally at higher mileages.

    In 2004, they started using some longer bolts, I believe from the LS6. These engines are as bulletproof as any other on the market.

    The '97-'99s used an unfavorable thread pitch, and shipped from the factory with Dexcool, which is corrosive by nature. Since Cadillac recommended Dexcool, most people didn't know to change it out. Between its corrosive nature, and especially when it starts going bad, it corrodes the wire-threaded bolts out pretty fast.

    A private shop can do this job properly for $2000 or less, just make sure you find someone who knows how to do it. I've seen some dealers charge $6000+ for the same thing.

    Make sure you change radiator fluid every 50k on your Northstar, and more if you don't drive 15k/year.

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  • Answer #5

    Visitor, August 22, 2010, 20:59

    cadillac should be ashame of themselves for making a messed up engine like that.northstar engines are no good.dont buy another one.dont buy anything with aluminum heads.they cost to much to repair.cadillacs havent been cadillacs for along time.

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    Visitor, April 22, 2011, 05:31

    I own a 2002 Cadillac Deville and I am going through head gasket challenges right now on my 32 valve motor with 151k miles on it

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    Visitor, April 30, 2011, 21:55

    i own a 2000 cadillac seville with the northstar v8 and it started by eating up a quart of oil every 800 miles and 6 months later the head gasket blew at 97k miles. i now have it parked on my driveway. ive looked in to repairing it but price quotes are $2000 minimum and theres a 50/50 chance it will run again with no problems. big gamble on a car thats worth $4500 in good condition.
    this is the reason gm discountinued the northstar v8. i loved my sls and now i wonder if i ever by another cadillac.

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    roby4help, May 01, 2013, 11:37
     Rookie

    DUPED BY BAR'S PRODUCTS INC ON NORTHSTAR ENGINE HEAD GASKET FIX REPAIR
    I want to crack down on con artist like Bar’s Products Inc, Holly MI and its claims without evidence on Bar’s Permanent Head Gasket Fix that turned out to be crap that followed to costly repairs
    It is like closing your eyes and writing prescription without having any knowledge on whom is going to the patient
    That’s apply to BAR’S PRODUCTS INC, Holly, Michigan 48442
    BAR'S PERMANENT HEAD GASKET FIX THE SHORT AND EASY WAY TO DAMAGE YOUR ENGINE AND CLOG EVERYTHING BEYOND REPAIR - that gang of evil people keep posting fakes and fabricated reviews all over the internet

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  • Answer #6

    Visitor, June 01, 2011, 10:54

    I purchased a bottle of Bars Leak Head Gasket and cooling sealant from Autozone for $59. Everybody told me I was a fool but it seems to have solved my problem - at least temperarily. I was going through a gallon of water per day and now I'm in the middle of week 4 and have added only about a cup of coolant (top off) in that whole time.

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    Missing My Tranpo, July 26, 2012, 06:24
     Rookie

    Happy for you! My husband loved his 2002 Deville. but 34 miles or so from NY he heard a warning bell, he looked it said coolant hot. we were able to pull over right away. The coolant backed out of the overflow hoses. we let it cool off, let the gauges get down to cool. we added more antifreeze and hit the road. after 18 minutes of travel the gauges started to creep up, we pulled over again. we added enough antifreeze to get to a gas station for more antifreeze, and then to our hotel,Weehawken NJ. please always have AAA they will stand by you. after two days stay we had the car towed to Atlantic city our next stop. make sure to ask the drive not the company if he will take 3 people. AAA told us too. but the ower of the wrecker told us yes, but i had already rented a car. he said $50 dollars more,i could have saved $69.00 we didn"t let that spoil our fun. The guy we saw in Alantic City said blown head gasket.I said to myself there is no water in the oil, there is no oil in the radiator. there is no steam coming out of the tailpipe. the gauges in the car never got two blocks pass over middle way. after our hotel stays we Uhaul it to my brothers place in MD. i saw online ths stuff called Dura-seal headgasket sealer for all makes of cars. suppose to be money back if it doesn't work. they have it for the Northstar engine. I'm going to get the kit for $149.00. we are not going to put another alluminum engine in this car, so it's worth the try. It runs great now, but over heats. even if this stuff does not work i can still drive it to work 3 minutes from my house and it won't get a chance to get hot. i will be back to let you know how it worked out.

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    BenWalker, June 12, 2013, 14:05
     Rookie

    If the engine is cold, like the first time you start the engine after many hours without driving the car,
    yes, the car may no show overheat for the first 3 minutes, but it will overheated after that, getting worse and worse and you will have to pull over
    The damaged is done and it will repeat over and over, even if you use any stuff to control the leak.
    Leak control is a way to make money, it won't fix the problem and the temperature will go sky high.

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  • Answer #7

    Visitor, August 13, 2011, 19:49

    I'm having the same problem with my 2002 seville STS (112,000 miles).....Dealership wants $4,000 to repair....

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  • Answer #8

    Cadillac Fan April 27, 2013, 16:19
     Rookie

    I have a 1998 Eldorado ETC that had the same issue of running hot. My mechanic told me that the head gasket was allowing the exhaust to get into the cooling system and causing the engine to overheat.
    He fixed it by reaming the bolt holes in the engine block and placing steel inserts into the holes. When the new gasket and head bolts were installed the inserts lock into the aluminum and won't allow the bolts to back out again.
    The cost of the repair was around $800.00 and worth every penny. I've got over 215000 miles on that Northstar engine now and it's still running strong!!
    The dealership wanted a lot more money to fix the problem, lucky for me that my mechanic retired from Cadillac and now has his own auto repair shop.

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    cnrsmith, May 07, 2013, 12:56
     Rookie

    I've been having the same problem with my cadillac I would be interested in talking to your mechanic Is there any way you could get me his contact information thanks

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  • Answer #9

    roby4help May 01, 2013, 11:34
     Rookie

    DUPED BY BAR'S PRODUCTS INC ON NORTHSTAR ENGINE HEAD GASKET FIX REPAIR
    I want to crack down on con artist like Bar’s Products Inc, Holly MI and its claims without evidence on Bar’s Permanent Head Gasket Fix that turned out to be crap that followed to costly repairs
    It is like closing your eyes and writing prescription without having any knowledge on whom is going to the patient
    That’s apply to BAR’S PRODUCTS INC, Holly, Michigan 48442
    BAR'S PERMANENT HEAD GASKET FIX THE SHORT AND EASY WAY TO DAMAGE YOUR ENGINE AND CLOG EVERYTHING BEYOND REPAIR - that gang of evil people keep posting fakes and fabricated reviews all over the internet

    Reply
    Flag This