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2001 seville
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getting ready to pull motor and restud my seville.. one question left before I do... my exh gas check never did turn the fluid from blue to yellow.. clear to light blue .. ant possible chance it's notthe gaskets?
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
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19,268 Posts
Re: 1999 STS with probable head gasket issue –

getting ready to pull motor and restud my seville.. one question left before I do... my exh gas check never did turn the fluid from blue to yellow.. clear to light blue .. ant possible chance it's notthe gaskets?
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the blue liquid reacts to hydrocarbons - exhaust gasses -
ANY color change compared to the original blue color is a POSITIVE reaction -

lighter blue or clear simply means a smaller concentration of exhaust gasses -
compared to the most dramatic change to green or yellow -
 

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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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86,781 Posts
:welcome:

What where the symptoms that led you to a failed HG conclusion?
 
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