Need help in th ATL Area - 2003 DHS Blown Head Gasket - Only 60K Miles - Page 2
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Need help in th ATL Area - 2003 DHS Blown Head Gasket - Only 60K Miles in Past Cadillac Vehicle Discussion; Originally Posted by bigtone [/COLOR] Church. I guess for some silly reason I thought a big Caddy dealership was above ...
  1. #16
    shizzyraw585 is offline Cadillac Owners Member
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    Re: Need help in th ATL Area - 2003 DHS Blown Head Gasket - Only 60K Miles

    Quote Originally Posted by bigtone View Post
    [/COLOR]

    Church. I guess for some silly reason I thought a big Caddy dealership was above trying to unload junk like that. Yes, incredibly silly I know.
    I bought an 02 Deville from Armen about 3 years ago, I believe they are a reputable dealer. I asked them if I could block test it and they said no problem. Now, I have to wonder why they ran it at the auction though. It may have been questionable.
    You said fluid turned yellow during the block test, do you have the classic symptoms of hg failure? (I read this thread quick so I may have missed it). Reason I ask is I also had a yellow indication on a Deville last year which ended up not being a hg failure but transmission fluid leaking through the radiator through the cooler. The fluid turn color in presence of hydrocarbons, which can come from combustion gas or in my case transmission fluid. The block test is not 100%.

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    Oh, and I will repeat myself again by saying that studs are overkill for these 10 year old cars. Timeserts and especially Norm's inserts have an excellent track record. One repair will most often outlast the car.[/QUOTE]

    I have one of those safety release valve radiator caps. I stuck overflow hose into an empty coolant bottle, released some pressure with the safety valve to expel some coolant through the hose into the bottle. The exhaust fumes were pretty strong in the coolant that was released into the bottle. I'm no mechanic by any stretch of the imagination but I would be pretty shocked if it wasn't a HG. I'll look into norms inserts now. Thanks brother!

  2. #17
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    You can't say the block test was any less accurate, because a separate problem was causing a false reading. If you have a flat tire, you need to make sure there's no nail in it, before you start diagnosing the valve stem and bead.

  3. #18
    bigtone's Avatar
    bigtone is offline Cadillac Owners Fanatic
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    Re: Need help in th ATL Area - 2003 DHS Blown Head Gasket - Only 60K Miles

    Quote Originally Posted by MoistCabbage View Post
    You can't say the block test was any less accurate, because a separate problem was causing a false reading. If you have a flat tire, you need to make sure there's no nail in it, before you start diagnosing the valve stem and bead.
    I said the block test looks for hydrocarbons, which may be present from issues other than a bad hg. I would check everything I can before diving right in on a hg repair. Think about it, if a false positive can be obtained due to a second issue, it may not be 100% accurate. Just trying to help the man.

    PS, my coolant smelled horrible with transmission fluid in it.

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